src/parse.y

   1 /* GOB C Preprocessor
   2  * Copyright (C) 1999 the Free Software Foundation.
   3  *
   4  * Author: George Lebl
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the  Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  * USA.
  20  */
  21 %{
  22
  23 #include "config.h"
  24 #include <glib.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #include "treefuncs.h"
  30 #include "main.h"
  31 #include "util.h"
  32
  33 #define _(x) (x)
  34
  35 GList *nodes = NULL;
  36
  37 static GList *class_nodes = NULL;
  38 Node *class = NULL;
  39 char *chunk_size = NULL;
  40
  41 static GList *typestack = NULL;
  42 static GList *funcargs = NULL;
  43 static GList *checks = NULL;
  44 static int has_self = FALSE;
  45 static int vararg = FALSE;
  46
  47 /* destructor and initializer for variables */
  48 static char *destructor = NULL;
  49 static int destructor_line = 0;
  50 static gboolean destructor_simple = TRUE;
  51 static char *initializer = NULL;
  52 static int initializer_line = 0;
  53
  54 static char *onerror = NULL;
  55 static char *defreturn = NULL;
  56
  57 static GList *gtktypes = NULL;
  58
  59 /* this can be a global as we will only do one function at a time
  60    anyway */
  61 static int the_scope = NO_SCOPE;
  62
  63 void free(void *ptr);
  64 int yylex(void);
  65
  66 extern int ccode_line;
  67 extern int line_no;
  68
  69 extern char *yytext;
  70
  71 static void
  72 yyerror(char *str)
  73 {
  74         char *out=NULL;
  75         char *p;
  76
  77         if(strcmp(yytext,"\n")==0) {
  78                 out=g_strconcat("Error: ",str," before newline",NULL);
  79         } else if(yytext[0]=='\0') {
  80                 out=g_strconcat("Error: ", str, " at end of input", NULL);
  81         } else {
  82                 char *tmp = g_strdup(yytext);
  83                 while((p=strchr(tmp, '\n')))
  84                         *p='.';
  85
  86                 out=g_strconcat("Error: ", str, " before '", tmp, "'", NULL);
  87                 g_free(tmp);
  88         }
  89
  90         fprintf(stderr, "%s:%d: %s\n", filename, line_no, out);
  91         g_free(out);
  92
  93         exit(1);
  94 }
  95
  96 static Type *
  97 pop_type(void)
  98 {
  99         Type *type = typestack->data;
 100         typestack = g_list_remove(typestack,typestack->data);
 101         return type;
 102 }
 103
 104 static void
 105 push_variable(char *name, int scope, int line_no, char *postfix)
 106 {
 107         Node *var;
 108         Type *type = pop_type();
 109
 110         type->postfix = postfix;
 111
 112         var = new_variable(scope, type, name, line_no,
 113                            destructor, destructor_line,
 114                            destructor_simple,
 115                            initializer, initializer_line);
 116         class_nodes = g_list_append(class_nodes, var);
 117 }
 118
 119 static void
 120 push_function(int scope, int method, char *oid, char *id,
 121               GString *cbuf, int line_no, int ccode_line,
 122               gboolean vararg, GList *flags)
 123 {
 124         Node *node;
 125         Type *type;
 126         char *c_cbuf;
 127
 128         g_assert(scope != CLASS_SCOPE);
 129
 130         if(method == INIT_METHOD || method == CLASS_INIT_METHOD) {
 131                 type = (Type *)new_type(g_strdup("void"), NULL, NULL);
 132         } else {
 133                 type = pop_type();
 134         }
 135
 136         /* a complicated and ugly test to figure out if we have
 137            the wrong number of types for a signal */
 138         if((method == SIGNAL_FIRST_METHOD ||
 139             method == SIGNAL_LAST_METHOD) &&
 140            g_list_length(gtktypes) != g_list_length(funcargs) &&
 141            !(g_list_length(funcargs) == 1 &&
 142              g_list_length(gtktypes) == 2 &&
 143              strcmp(gtktypes->next->data, "NONE")==0)) {
 144                 error_print(GOB_WARN, line_no,
 145                             _("The number of GTK arguments and "
 146                               "function arguments for a signal "
 147                               "don't seem to match"));
 148         }
 149         if(g_list_length(gtktypes) > 2) {
 150                 GList *li;
 151                 for(li = gtktypes->next; li; li = li->next) {
 152                         if(strcmp(li->data, "NONE")==0) {
 153                                 error_print(GOB_ERROR, line_no,
 154                                             _("NONE can only appear in an "
 155                                               "argument list by itself"));
 156                         }
 157                 }
 158         }
 159         if(cbuf) {
 160                 char *p;
 161                 c_cbuf = p = cbuf->str;
 162                 while(p && *p && (*p==' ' || *p=='\t' || *p=='\n' || *p=='\r'))
 163                         p++;
 164                 if(!p || !*p)
 165                         c_cbuf = NULL;
 166         } else
 167                 c_cbuf = NULL;
 168
 169         node = new_method(scope, method, type, oid, gtktypes, flags,
 170                           id, funcargs, onerror, defreturn, c_cbuf, line_no,
 171                           ccode_line, vararg, method_unique_id++);
 172
 173         if(cbuf)
 174                 g_string_free(cbuf,
 175                               /*only free segment if we haven't passed it
 176                                 above */
 177                               c_cbuf?FALSE:TRUE);
 178         gtktypes = NULL;
 179         funcargs = NULL;
 180
 181         onerror = NULL;
 182         defreturn = NULL;
 183
 184         class_nodes = g_list_append(class_nodes, node);
 185 }
 186
 187 static void
 188 free_all_global_state(void)
 189 {
 190         g_free(onerror);
 191         onerror = NULL;
 192         g_free(defreturn);
 193         defreturn = NULL;
 194
 195         g_free(chunk_size);
 196         chunk_size = NULL;
 197
 198         g_list_foreach(gtktypes, (GFunc)g_free, NULL);
 199         g_list_free(gtktypes);
 200         gtktypes = NULL;
 201
 202         free_node_list(funcargs);
 203         funcargs = NULL;
 204 }
 205
 206 static void
 207 push_funcarg(char *name, char *postfix)
 208 {
 209         Node *node;
 210         Type *type = pop_type();
 211
 212         type->postfix = postfix;
 213
 214         node = new_funcarg(type, name, checks);
 215         checks = NULL;
 216
 217         funcargs = g_list_append(funcargs, node);
 218 }
 219
 220 static void
 221 push_init_arg(char *name, int is_class)
 222 {
 223         Node *node;
 224         Node *type;
 225         char *tn;
 226
 227         if(is_class)
 228                 tn = g_strconcat(((Class *)class)->otype,":Class",NULL);
 229         else
 230                 tn = g_strdup(((Class *)class)->otype);
 231
 232         type = new_type(tn, g_strdup("*"), NULL);
 233         node = new_funcarg((Type *)type,name,NULL);
 234         funcargs = g_list_prepend(funcargs, node);
 235 }
 236
 237 static void
 238 push_self(char *id, gboolean constant)
 239 {
 240         Node *node;
 241         Node *type;
 242         GList *ch = NULL;
 243         type = new_type(g_strdup(((Class *)class)->otype),
 244                         g_strdup(constant ? "const *" : "*"), NULL);
 245         ch = g_list_append(ch,new_check(NULL_CHECK,NULL));
 246         ch = g_list_append(ch,new_check(TYPE_CHECK,NULL));
 247         node = new_funcarg((Type *)type,id,ch);
 248         funcargs = g_list_prepend(funcargs, node);
 249 }
 250
 251 static Variable *
 252 find_var_or_die(const char *id, int line)
 253 {
 254         GList *li;
 255
 256         for(li = class_nodes; li != NULL; li = li->next) {
 257                 Variable *var;
 258                 Node *node = li->data;
 259                 if(node->type != VARIABLE_NODE)
 260                         continue;
 261                 var = li->data;
 262                 if(strcmp(var->id, id)==0)
 263                         return var;
 264         }
 265
 266         error_printf(GOB_ERROR, line, _("Variable %s not defined here"), id);
 267
 268         g_assert_not_reached();
 269         return NULL;
 270 }
 271
 272 static gboolean
 273 set_return_value(char *type, char *val)
 274 {
 275         if(strcmp(type, "onerror")==0) {
 276                 if(!onerror) {
 277                         onerror = val;
 278                         return TRUE;
 279                 } else
 280                         return FALSE;
 281         } else if(strcmp(type, "defreturn")==0) {
 282                 if(!defreturn) {
 283                         defreturn = val;
 284                         return TRUE;
 285                 } else
 286                         return FALSE;
 287         }
 288         return FALSE;
 289 }
 290
 291 %}
 292
 293 %union {
 294         char *id;
 295         GString *cbuf;
 296         GList *list;
 297         int line;
 298         int sigtype;
 299 }
 300
 301 %token CLASS FROM
 302 %token CONST VOID STRUCT UNION ENUM THREEDOTS
 303 %token SIGNED UNSIGNED LONG SHORT INT FLOAT DOUBLE CHAR
 304
 305 %token <id> TOKEN NUMBER TYPETOKEN ARRAY_DIM
 306 %token <cbuf> CCODE HTCODE PHCODE HCODE ACODE ATCODE
 307 %token <line> PUBLIC PRIVATE PROTECTED CLASSWIDE ARGUMENT VIRTUAL SIGNAL OVERRIDE
 308
 309 %%
 310
 311 prog:           ccodes class ccodes     { ; }
 312         |       class ccodes            { ; }
 313         |       ccodes class            { ; }
 314         |       class                   { ; }
 315         ;
 316
 317 ccode:          CCODE                   {
 318                         Node *node = new_ccode(C_CCODE,($<cbuf>1)->str,
 319                                                ccode_line);
 320                         nodes = g_list_append(nodes,node);
 321                         g_string_free($<cbuf>1,FALSE);
 322                                         }
 323         |       HCODE                   {
 324                         Node *node = new_ccode(H_CCODE,($<cbuf>1)->str,
 325                                                ccode_line);
 326                         nodes = g_list_append(nodes,node);
 327                         g_string_free($<cbuf>1,FALSE);
 328                                         }
 329         |       HTCODE                  {
 330                         Node *node = new_ccode(HT_CCODE,($<cbuf>1)->str,
 331                                                ccode_line);
 332                         nodes = g_list_append(nodes,node);
 333                         g_string_free($<cbuf>1,FALSE);
 334                                         }
 335         |       PHCODE                  {
 336                         Node *node = new_ccode(PH_CCODE,($<cbuf>1)->str,
 337                                                ccode_line);
 338                         nodes = g_list_append(nodes,node);
 339                         g_string_free($<cbuf>1,FALSE);
 340                                         }
 341         |       ACODE                   {
 342                         Node *node = new_ccode(A_CCODE,($<cbuf>1)->str,
 343                                                ccode_line);
 344                         nodes = g_list_append(nodes,node);
 345                         g_string_free($<cbuf>1,FALSE);
 346                                         }
 347         |       ATCODE                  {
 348                         Node *node = new_ccode(AT_CCODE,($<cbuf>1)->str,
 349                                                ccode_line);
 350                         nodes = g_list_append(nodes,node);
 351                         g_string_free($<cbuf>1,FALSE);
 352                                         }
 353         ;
 354
 355 ccodes:         ccodes ccode            { ; }
 356         |       ccode                   { ; }
 357         ;
 358
 359 class:          classdec '{' classcode '}'      {
 360                         ((Class *)class)->nodes = class_nodes;
 361                         class_nodes = NULL;
 362                         nodes = g_list_append(nodes,class);
 363                                                 }
 364         |       classdec '{' '}'                {
 365                         ((Class *)class)->nodes = NULL;
 366                         class_nodes = NULL;
 367                         nodes = g_list_append(nodes,class);
 368                                                 }
 369         ;
 370
 371 classdec:       CLASS TYPETOKEN FROM TYPETOKEN  chunk {
 372                         class = new_class($<id>2,$<id>4,chunk_size,NULL);
 373                                                 }
 374         ;
 375
 376 chunk:
 377         | '(' TOKEN TOKEN ')' {
 378                         if(strcmp($<id>2,"chunks") == 0) {
 379                                         chunk_size = g_strdup($<id>4);
 380                         } else {
 381                                 yyerror(_("parse error"));
 382                                 YYERROR;
 383                         }
 384                 }
 385         | '(' TOKEN NUMBER ')' {
 386                         if(strcmp($<id>2,"chunks") == 0) {
 387                                 if(atoi($<id>4) != 0)
 388                                         chunk_size = g_strdup($<id>4);
 389                         } else {
 390                                 yyerror(_("parse error"));
 391                                 YYERROR;
 392                         }
 393                 }
 394         ;
 395
 396 classcode:      classcode thing                 { ; }
 397         |       thing                           { ; }
 398         ;
 399
 400 thing:          method                          { ; }
 401         |       variable                        { ; }
 402         |       argument                        { ; }
 403         |       ';'                             { ; }
 404         ;
 405
 406 scope:          PUBLIC                  { the_scope = PUBLIC_SCOPE; }
 407         |       PRIVATE                 { the_scope = PRIVATE_SCOPE; }
 408         |       PROTECTED               { the_scope = PROTECTED_SCOPE; }
 409         |       CLASSWIDE               { the_scope = CLASS_SCOPE; }
 410         ;
 411
 412 destructor:     TOKEN TOKEN     {
 413                         if(strcmp($<id>1, "destroywith")==0) {
 414                                 g_free($<id>1);
 415                                 destructor = $<id>2;
 416                                 destructor_line = line_no;
 417                                 destructor_simple = TRUE;
 418                         } else {
 419                                 g_free($<id>1);
 420                                 g_free($<id>2);
 421                                 yyerror(_("parse error"));
 422                                 YYERROR;
 423                         }
 424                                 }
 425         |       TOKEN '{' CCODE         {
 426                         if(strcmp($<id>1, "destroy")==0) {
 427                                 g_free($<id>1);
 428                                 destructor = ($<cbuf>3)->str;
 429                                 g_string_free($<cbuf>3, FALSE);
 430                                 destructor_line = ccode_line;
 431                                 destructor_simple = FALSE;
 432                         } else {
 433                                 g_free($<id>1);
 434                                 g_string_free($<cbuf>3, TRUE);
 435                                 yyerror(_("parse error"));
 436                                 YYERROR;
 437                         }
 438                                         }
 439         ;
 440
 441 initializer:    '=' numtok      {
 442                         initializer = $<id>2;
 443                         initializer_line = ccode_line;
 444                                 }
 445         |       '=' '{' CCODE   {
 446                         initializer = ($<cbuf>3)->str;
 447                         initializer_line = ccode_line;
 448                         g_string_free($<cbuf>3, FALSE);
 449                                 }
 450         ;
 451
 452
 453 varoptions:     destructor initializer  { ; }
 454         |       initializer destructor  { ; }
 455         |       initializer             { destructor = NULL; }
 456         |       destructor              { initializer = NULL; }
 457         |                               {
 458                         destructor = NULL;
 459                         initializer = NULL;
 460                                         }
 461         ;
 462
 463 variable:       scope type TOKEN varoptions ';'         {
 464                         push_variable($<id>3, the_scope,$<line>1, NULL);
 465                                                 }
 466         |       scope type TOKEN ARRAY_DIM varoptions ';'       {
 467                         push_variable($<id>3, the_scope, $<line>1, $<id>4);
 468                                                 }
 469         ;
 470 argument:       ARGUMENT flags argtype TOKEN TOKEN '{' CCODE TOKEN '{' CCODE ';' {
 471                         if(strcmp($<id>5,"get")==0 &&
 472                            strcmp($<id>8,"set")==0) {
 473                                 Node *node;
 474                                 Type *type = pop_type();
 475                                 g_free($<id>5); g_free($<id>8);
 476                                 node = new_argument($<id>3,type,$<list>2,$<id>4,
 477                                                     ($<cbuf>7)->str,$<line>6,
 478                                                     ($<cbuf>10)->str,$<line>9,
 479                                                     $<line>1);
 480                                 g_string_free($<cbuf>7,FALSE);
 481                                 g_string_free($<cbuf>10,FALSE);
 482                                 class_nodes = g_list_append(class_nodes,node);
 483                         } else if(strcmp($<id>5,"set")==0 &&
 484                                 strcmp($<id>8,"get")==0) {
 485                                 Node *node;
 486                                 Type *type = pop_type();
 487                                 g_free($<id>5); g_free($<id>8);
 488                                 node = new_argument($<id>3,type,$<list>2,$<id>4,
 489                                                     ($<cbuf>10)->str,$<line>9,
 490                                                     ($<cbuf>7)->str,$<line>6,
 491                                                     $<line>1);
 492                                 g_string_free($<cbuf>10,FALSE);
 493                                 g_string_free($<cbuf>7,FALSE);
 494                                 class_nodes = g_list_append(class_nodes,node);
 495                         } else {
 496                                 g_free($<id>3); g_free($<id>4);
 497                                 g_free($<id>5); g_free($<id>8);
 498                                 g_list_foreach($<list>2,(GFunc)g_free,NULL);
 499                                 g_list_free($<list>2);
 500                                 g_string_free($<cbuf>10,TRUE);
 501                                 g_string_free($<cbuf>7,TRUE);
 502                                 yyerror(_("parse error"));
 503                                 YYERROR;
 504                         }
 505                                                 }
 506         |       ARGUMENT flags argtype TOKEN TOKEN '{' CCODE ';' {
 507                         if(strcmp($<id>5, "get") == 0) {
 508                                 Node *node;
 509                                 Type *type = pop_type();
 510                                 g_free($<id>5);
 511                                 node = new_argument($<id>3, type, $<list>2, $<id>4,
 512                                                     ($<cbuf>7)->str, $<line>6,
 513                                                     NULL, 0, $<line>1);
 514                                 g_string_free($<cbuf>7, FALSE);
 515                                 class_nodes = g_list_append(class_nodes, node);
 516                         } else if(strcmp($<id>5, "set") == 0) {
 517                                 Node *node;
 518                                 Type *type = pop_type();
 519                                 g_free($<id>5);
 520                                 node = new_argument($<id>3, type, $<list>2, $<id>4,
 521                                                     NULL, 0, ($<cbuf>7)->str,
 522                                                     $<line>6, $<line>1);
 523                                 g_string_free($<cbuf>7, FALSE);
 524                                 class_nodes = g_list_append(class_nodes, node);
 525                         } else {
 526                                 g_free($<id>5); g_free($<id>3);
 527                                 g_free($<id>4);
 528                                 g_list_foreach($<list>2, (GFunc)g_free, NULL);
 529                                 g_list_free($<list>2);
 530                                 g_string_free($<cbuf>7, TRUE);
 531                                 yyerror(_("parse error"));
 532                                 YYERROR;
 533                         }
 534                                                 }
 535         |       ARGUMENT flags argtype TOKEN TOKEN {
 536                         Node *node;
 537                         char *get, *set = NULL;
 538                         Variable *var;
 539                         Type *type;
 540                         char *root;
 541
 542                         if(strcmp($<id>5, "link")!=0 &&
 543                            strcmp($<id>5, "stringlink")!=0 &&
 544                            strcmp($<id>5, "objectlink")!=0) {
 545                                 g_free($<id>5); g_free($<id>3);
 546                                 g_free($<id>4);
 547                                 g_list_foreach($<list>2,(GFunc)g_free,NULL);
 548                                 g_list_free($<list>2);
 549                                 yyerror(_("parse error"));
 550                                 YYERROR;
 551                         }
 552
 553                         type = pop_type();
 554
 555                         var = find_var_or_die($<id>4, $<line>1);
 556                         if(var->scope == PRIVATE_SCOPE)
 557                                 root = "self->_priv";
 558                         else if(var->scope == CLASS_SCOPE) {
 559                                 root = "SELF_GET_CLASS(self)";
 560                                 if(no_self_alias)
 561                                         error_print(GOB_ERROR, $<line>1,
 562                                                     _("Self aliases needed when autolinking to a classwide member"));
 563                         } else
 564                                 root = "self";
 565
 566                         if(strcmp($<id>5, "link")==0) {
 567                                 set = g_strdup_printf("%s->%s = ARG;",
 568                                                       root, $<id>4);
 569                         } else if(strcmp($<id>5, "stringlink")==0) {
 570                                 set = g_strdup_printf("g_free(%s->%s); "
 571                                                       "%s->%s = g_strdup(ARG);",
 572                                                       root, $<id>4,
 573                                                       root, $<id>4);
 574                         } else if(strcmp($<id>5, "objectlink")==0) {
 575                                 set = g_strdup_printf(
 576                                   "if(%s->%s) "
 577                                    "gtk_object_unref(GTK_OBJECT(%s->%s)); "
 578                                   "%s->%s = ARG; "
 579                                   "if(%s->%s) "
 580                                    "gtk_object_ref(GTK_OBJECT(%s->%s));",
 581                                   root, $<id>4,
 582                                   root, $<id>4,
 583                                   root, $<id>4,
 584                                   root, $<id>4,
 585                                   root, $<id>4);
 586                         } else {
 587                                 g_assert_not_reached();
 588                         }
 589
 590                         if(strcmp($<id>5, "stringlink")==0) {
 591                                 get = g_strdup_printf("ARG = g_strdup(%s->%s);", root, $<id>4);
 592                         } else
 593                                 /* For everything else, get is just straight assignment */
 594                                 get = g_strdup_printf("ARG = %s->%s;", root, $<id>4);
 595
 596                         g_free($<id>5);
 597
 598
 599                         if(!type)
 600                                 type = copy_type(var->vtype);
 601
 602                         node = new_argument($<id>3, type, $<list>2,
 603                                             $<id>4, get, $<line>1,
 604                                             set, $<line>1, $<line>1);
 605                         class_nodes = g_list_append(class_nodes,node);
 606                                                 }
 607         ;
 608
 609 argtype:        TOKEN '(' TOKEN type ')'        {
 610                         if(strcmp($<id>3,"type")!=0) {
 611                                 g_free($<id>1);
 612                                 g_free($<id>3);
 613                                 yyerror(_("parse error"));
 614                                 YYERROR;
 615                         }
 616                         $<id>$ = $<id>1;
 617                                                 }
 618         |       TOKEN                           {
 619                         $<id>$ = $<id>1;
 620                         typestack = g_list_prepend(typestack,NULL);
 621                                                 }
 622         ;
 623
 624 flags:          '(' flaglist ')'                { $<list>$ = $<list>2; }
 625         |                                       { $<list>$ = NULL; }
 626         ;
 627
 628 flaglist:       TOKEN '|' flaglist              {
 629                         $<list>$ = g_list_append($<list>3,$<id>1);
 630                                                 }
 631         |       TOKEN                           {
 632                         $<list>$ = g_list_append(NULL,$<id>1);
 633                                                 }
 634         ;
 635
 636
 637 type:           specifier_list pointer                          {
 638                         Node *node = new_type($<id>1, $<id>2, NULL);
 639                         typestack = g_list_prepend(typestack,node);
 640                                                         }
 641         |       specifier_list                          {
 642                         Node *node = new_type($<id>1, NULL, NULL);
 643                         typestack = g_list_prepend(typestack,node);
 644                                                         }
 645         ;
 646
 647 /* The special cases are neccessary to avoid conflicts */
 648 specifier_list: spec_list                               {
 649                         $<id>$ = $<id>1;
 650                                                         }
 651         |       TOKEN                                   {
 652                         $<id>$ = $<id>1;
 653                                                         }
 654         |       CONST TOKEN                             {
 655                         $<id>$ = g_strconcat("const ", $<id>2, NULL);
 656                         g_free($<id>2);
 657                                                         }
 658         |       TOKEN CONST                             {
 659                         $<id>$ = g_strconcat($<id>1, " const", NULL);
 660                         g_free($<id>1);
 661                                                         }
 662         |       strunionenum TOKEN                      {
 663                         $<id>$ = g_strconcat($<id>1, " ", $<id>2, NULL);
 664                         g_free($<id>2);
 665                                                         }
 666         |       CONST strunionenum TOKEN                {
 667                         $<id>$ = g_strconcat("const ", $<id>2, " ",
 668                                              $<id>3, NULL);
 669                         g_free($<id>3);
 670                                                         }
 671         |       strunionenum TOKEN CONST                {
 672                         $<id>$ = g_strconcat($<id>1, " ",
 673                                              $<id>2, " const", NULL);
 674                         g_free($<id>2);
 675                                                         }
 676         ;
 677
 678 /* The special const cases take care of conflicts ! */
 679 spec_list:      specifier spec_list                     {
 680                         $<id>$ = g_strconcat($<id>1, " ", $<id>2, NULL);
 681                         g_free($<id>2);
 682                                                         }
 683         |       TYPETOKEN spec_list                     {
 684                         $<id>$ = g_strconcat($<id>1, " ", $<id>2, NULL);
 685                         g_free($<id>1);
 686                         g_free($<id>2);
 687                                                         }
 688         |       CONST spec_list                         {
 689                         $<id>$ = g_strconcat("const ", $<id>2, NULL);
 690                         g_free($<id>2);
 691                                                         }
 692         |       TYPETOKEN                               {
 693                         $<id>$ = $<id>1;
 694                                                         }
 695         |       TYPETOKEN CONST                         {
 696                         $<id>$ = g_strconcat($<id>1, " const", NULL);
 697                         g_free($<id>1);
 698                                                         }
 699         |       specifier                               {
 700                         $<id>$ = g_strdup($<id>1);
 701                                                         }
 702         |       specifier CONST                         {
 703                         $<id>$ = g_strconcat($<id>1, " const", NULL);
 704                                                         }
 705         ;
 706
 707 specifier:      VOID                    { $<id>$ = "void"; }
 708         |       CHAR                    { $<id>$ = "char"; }
 709         |       SHORT                   { $<id>$ = "short"; }
 710         |       INT                     { $<id>$ = "int"; }
 711         |       LONG                    { $<id>$ = "long"; }
 712         |       FLOAT                   { $<id>$ = "float"; }
 713         |       DOUBLE                  { $<id>$ = "double"; }
 714         |       SIGNED                  { $<id>$ = "signed"; }
 715         |       UNSIGNED                { $<id>$ = "unsigned"; }
 716         ;
 717
 718 strunionenum:   STRUCT                  { $<id>$ = "struct"; }
 719         |       UNION                   { $<id>$ = "union"; }
 720         |       ENUM                    { $<id>$ = "enum"; }
 721         ;
 722
 723 pointer:        '*'                     { $<id>$ = g_strdup("*"); }
 724         |       '*' CONST               { $<id>$ = g_strdup("* const"); }
 725         |       '*' pointer             {
 726                                 $<id>$ = g_strconcat("*", $<id>2, NULL);
 727                                 g_free($<id>2);
 728                                         }
 729         |       '*' CONST pointer       {
 730                                 $<id>$ = g_strconcat("* const", $<id>3, NULL);
 731                                 g_free($<id>3);
 732                                         }
 733         ;
 734
 735 /* this never sets the_scope */
 736 simplesigtype:  TOKEN sigtype   {
 737                         if(strcmp($<id>1, "first")==0)
 738                                 $<sigtype>$ = SIGNAL_FIRST_METHOD;
 739                         else if(strcmp($<id>1, "last")==0)
 740                                 $<sigtype>$ = SIGNAL_LAST_METHOD;
 741                         else {
 742                                 yyerror(_("signal must be 'first' or 'last'"));
 743                                 g_free($<id>1);
 744                                 YYERROR;
 745                         }
 746                         g_free($<id>1);
 747                                         }
 748         |       sigtype                 {
 749                         $<sigtype>$ = SIGNAL_LAST_METHOD;
 750                                         }
 751         ;
 752
 753 /* this always sets the_scope */
 754 fullsigtype:    scope TOKEN sigtype     {
 755                         if(strcmp($<id>2,"first")==0)
 756                                 $<sigtype>$ = SIGNAL_FIRST_METHOD;
 757                         else if(strcmp($<id>2,"last")==0)
 758                                 $<sigtype>$ = SIGNAL_LAST_METHOD;
 759                         else {
 760                                 yyerror(_("signal must be 'first' or 'last'"));
 761                                 g_free($<id>2);
 762                                 YYERROR;
 763                         }
 764                         g_free($<id>2);
 765                                         }
 766         |       TOKEN scope sigtype     {
 767                         if(strcmp($<id>1,"first")==0)
 768                                 $<sigtype>$ = SIGNAL_FIRST_METHOD;
 769                         else if(strcmp($<id>1,"last")==0)
 770                                 $<sigtype>$ = SIGNAL_LAST_METHOD;
 771                         else {
 772                                 yyerror(_("signal must be 'first' or 'last'"));
 773                                 g_free($<id>1);
 774                                 YYERROR;
 775                         }
 776                         g_free($<id>1);
 777                                         }
 778         |       scope sigtype           {
 779                         $<sigtype>$ = SIGNAL_LAST_METHOD;
 780                                         }
 781         |       simplesigtype           {
 782                         /* the_scope was default thus public */
 783                         the_scope = PUBLIC_SCOPE;
 784                                         }
 785         ;
 786
 787 sigtype:        TOKEN '(' tokenlist ')'         {
 788                         gtktypes = g_list_prepend(gtktypes, $<id>1);
 789                                                 }
 790         ;
 791
 792 tokenlist:      tokenlist ',' TOKEN             {
 793                         gtktypes = g_list_append(gtktypes, $<id>3);
 794                                                 }
 795         |       TOKEN                           {
 796                         gtktypes = g_list_append(gtktypes, $<id>1);
 797                                                 }
 798         ;
 799
 800 codenocode:     '{' CCODE                       { $<cbuf>$ = $<cbuf>2; }
 801         |       ';'                             { $<cbuf>$ = NULL; }
 802         ;
 803
 804 /*here CCODE will include the ending '}' */
 805 method:         SIGNAL flags fullsigtype type TOKEN '(' funcargs ')' returnvals codenocode {
 806                         if(!has_self) {
 807                                 yyerror(_("signal without 'self' as "
 808                                           "first parameter"));
 809                                 free_all_global_state();
 810                                 YYERROR;
 811                         }
 812                         if(the_scope == CLASS_SCOPE) {
 813                                 yyerror(_("a method cannot be of class scope"));
 814                                 free_all_global_state();
 815                                 YYERROR;
 816                         }
 817                         push_function(the_scope, $<sigtype>3,NULL,
 818                                       $<id>5, $<cbuf>10,$<line>1,
 819                                       ccode_line, vararg, $<list>2);
 820                                                                         }
 821         |       scope SIGNAL flags simplesigtype type TOKEN '(' funcargs ')' returnvals codenocode {
 822                         if(!has_self) {
 823                                 yyerror(_("signal without 'self' as "
 824                                           "first parameter"));
 825                                 free_all_global_state();
 826                                 YYERROR;
 827                         }
 828                         if(the_scope == CLASS_SCOPE) {
 829                                 yyerror(_("a method cannot be of class scope"));
 830                                 free_all_global_state();
 831                                 YYERROR;
 832                         }
 833                         push_function(the_scope, $<sigtype>4, NULL,
 834                                       $<id>6, $<cbuf>11, $<line>2,
 835                                       ccode_line, vararg, $<list>3);
 836                                                                         }
 837         |       VIRTUAL scope type TOKEN '(' funcargs ')' returnvals codenocode {
 838                         if(!has_self) {
 839                                 yyerror(_("virtual method without 'self' as "
 840                                           "first parameter"));
 841                                 free_all_global_state();
 842                                 YYERROR;
 843                         }
 844                         if(the_scope == CLASS_SCOPE) {
 845                                 yyerror(_("a method cannot be of class scope"));
 846                                 free_all_global_state();
 847                                 YYERROR;
 848                         }
 849                         push_function(the_scope, VIRTUAL_METHOD, NULL, $<id>4,
 850                                       $<cbuf>9, $<line>1,
 851                                       ccode_line, vararg, NULL);
 852                                                                         }
 853         |       scope VIRTUAL type TOKEN '(' funcargs ')' returnvals codenocode {
 854                         if(!has_self) {
 855                                 yyerror(_("virtual method without 'self' as "
 856                                           "first parameter"));
 857                                 free_all_global_state();
 858                                 YYERROR;
 859                         }
 860                         if(the_scope == CLASS_SCOPE) {
 861                                 yyerror(_("a method cannot be of class scope"));
 862                                 free_all_global_state();
 863                                 YYERROR;
 864                         }
 865                         push_function(the_scope, VIRTUAL_METHOD, NULL, $<id>4,
 866                                       $<cbuf>9, $<line>2,
 867                                       ccode_line, vararg, NULL);
 868                                                                         }
 869         |       VIRTUAL type TOKEN '(' funcargs ')' returnvals codenocode       {
 870                         if(!has_self) {
 871                                 yyerror(_("virtual method without 'self' as "
 872                                           "first parameter"));
 873                                 free_all_global_state();
 874                                 YYERROR;
 875                         }
 876                         push_function(PUBLIC_SCOPE, VIRTUAL_METHOD, NULL,
 877                                       $<id>3, $<cbuf>8, $<line>1,
 878                                       ccode_line, vararg, NULL);
 879                                                                         }
 880         |       OVERRIDE '(' TYPETOKEN ')' type TOKEN '(' funcargs ')' returnvals codenocode    {
 881                         push_function(NO_SCOPE, OVERRIDE_METHOD, $<id>3,
 882                                       $<id>6, $<cbuf>11,
 883                                       $<line>1, ccode_line,
 884                                       vararg, NULL);
 885                                                                         }
 886         |       scope type TOKEN '(' funcargs ')' returnvals codenocode {
 887                         if(the_scope == CLASS_SCOPE) {
 888                                 yyerror(_("a method cannot be of class scope"));
 889                                 free_all_global_state();
 890                                 YYERROR;
 891                         }
 892                         push_function(the_scope, REGULAR_METHOD, NULL, $<id>3,
 893                                       $<cbuf>8, $<line>1, ccode_line,
 894                                       vararg, NULL);
 895                                                                 }
 896         |       TOKEN '(' TOKEN ')' codenocode  {
 897                         if(strcmp($<id>1, "init")==0) {
 898                                 push_init_arg($<id>3,FALSE);
 899                                 push_function(NO_SCOPE, INIT_METHOD, NULL,
 900                                               $<id>1, $<cbuf>5, $<line>2,
 901                                               ccode_line, FALSE, NULL);
 902                         } else if(strcmp($<id>1, "class_init")==0) {
 903                                 push_init_arg($<id>3,TRUE);
 904                                 push_function(NO_SCOPE, CLASS_INIT_METHOD, NULL,
 905                                               $<id>1, $<cbuf>5, $<line>2,
 906                                               ccode_line, FALSE, NULL);
 907                         } else {
 908                                 g_free($<id>1);
 909                                 g_free($<id>3);
 910                                 g_string_free($<cbuf>5,TRUE);
 911                                 yyerror(_("parse error "
 912                                           "(untyped blocks must be init or "
 913                                           "class_init)"));
 914                                 YYERROR;
 915                         }
 916                                                 }
 917         ;
 918
 919 returnvals:     TOKEN retcode           {
 920                         g_free(onerror); onerror = NULL;
 921                         g_free(defreturn); defreturn = NULL;
 922                         if(!set_return_value($<id>1, $<id>2)) {
 923                                 g_free($<id>1);
 924                                 g_free($<id>2);
 925                                 yyerror(_("parse error"));
 926                                 YYERROR;
 927                         }
 928                         g_free($<id>1);
 929                                         }
 930         |       TOKEN retcode TOKEN retcode     {
 931                         g_free(onerror); onerror = NULL;
 932                         g_free(defreturn); defreturn = NULL;
 933                         if(!set_return_value($<id>1, $<id>2)) {
 934                                 g_free($<id>1); g_free($<id>2);
 935                                 g_free($<id>3); g_free($<id>4);
 936                                 yyerror(_("parse error"));
 937                                 YYERROR;
 938                         }
 939                         if(!set_return_value($<id>3, $<id>4)) {
 940                                 onerror = defreturn = NULL;
 941                                 g_free($<id>1); g_free($<id>2);
 942                                 g_free($<id>3); g_free($<id>4);
 943                                 yyerror(_("parse error"));
 944                                 YYERROR;
 945                         }
 946                         g_free($<id>1);
 947                         g_free($<id>3);
 948                                                 }
 949         |                               {
 950                         g_free(onerror); onerror = NULL;
 951                         g_free(defreturn); defreturn = NULL;
 952                                         }
 953         ;
 954
 955 retcode:        numtok                  { $<id>$ = $<id>1; }
 956         |       '{' CCODE               {
 957                         $<id>$ = ($<cbuf>3)->str;
 958                         g_string_free($<cbuf>3, FALSE);
 959                                         }
 960         ;
 961
 962 funcargs:       VOID                    { vararg = FALSE; has_self = FALSE; }
 963         |       TOKEN                   {
 964                         vararg = FALSE;
 965                         has_self = TRUE;
 966                         if(strcmp($<id>1,"self")==0)
 967                                 push_self($<id>1, FALSE);
 968                         else {
 969                                 g_free($<id>1);
 970                                 yyerror(_("parse error"));
 971                                 YYERROR;
 972                         }
 973                                         }
 974         |       TOKEN CONST {
 975                         vararg = FALSE;
 976                         has_self = TRUE;
 977                         if(strcmp($<id>1,"self")==0)
 978                                 push_self($<id>1, TRUE);
 979                         else {
 980                                 g_free($<id>1);
 981                                 yyerror(_("parse error"));
 982                                 YYERROR;
 983                         }
 984                                         }
 985         |       CONST TOKEN {
 986                         vararg = FALSE;
 987                         has_self = TRUE;
 988                         if(strcmp($<id>2,"self")==0)
 989                                 push_self($<id>2, TRUE);
 990                         else {
 991                                 g_free($<id>2);
 992                                 yyerror(_("parse error"));
 993                                 YYERROR;
 994                         }
 995                                         }
 996         |       TOKEN ',' arglist       {
 997                         has_self = TRUE;
 998                         if(strcmp($<id>1,"self")==0)
 999                                 push_self($<id>1, FALSE);
1000                         else {
1001                                 g_free($<id>1);
1002                                 yyerror(_("parse error"));
1003                                 YYERROR;
1004                         }
1005                                         }
1006         |       TOKEN CONST ',' arglist {
1007                         has_self = TRUE;
1008                         if(strcmp($<id>1,"self")==0)
1009                                 push_self($<id>1, TRUE);
1010                         else {
1011                                 g_free($<id>1);
1012                                 yyerror(_("parse error"));
1013                                 YYERROR;
1014                         }
1015                                         }
1016         |       CONST TOKEN ',' arglist {
1017                         has_self = TRUE;
1018                         if(strcmp($<id>2,"self")==0)
1019                                 push_self($<id>2, TRUE);
1020                         else {
1021                                 g_free($<id>2);
1022                                 yyerror(_("parse error"));
1023                                 YYERROR;
1024                         }
1025                                         }
1026         |       arglist                 { has_self = FALSE; }
1027         ;
1028
1029 arglist:        arglist1 ',' THREEDOTS  { vararg = TRUE; }
1030         |       arglist1                { vararg = FALSE; }
1031         ;
1032
1033 arglist1:       arglist1 ',' arg        { ; }
1034         |       arg                     { ; }
1035         ;
1036
1037 arg:            type TOKEN                                      {
1038                         push_funcarg($<id>2,NULL);
1039                                                                 }
1040         |       type TOKEN ARRAY_DIM                            {
1041                         push_funcarg($<id>2,$<id>3);
1042                                                                 }
1043         |       type TOKEN '(' TOKEN checklist ')'              {
1044                         if(strcmp($<id>4,"check")!=0) {
1045                                 yyerror(_("parse error"));
1046                                 YYERROR;
1047                         }
1048                         g_free($<id>4);
1049                         push_funcarg($<id>2,NULL);
1050                                                                 }
1051         |       type TOKEN ARRAY_DIM '(' TOKEN checklist ')'    {
1052                         if(strcmp($<id>5,"check")!=0) {
1053                                 yyerror(_("parse error"));
1054                                 YYERROR;
1055                         }
1056                         g_free($<id>5);
1057                         push_funcarg($<id>2,$<id>3);
1058                                                                 }
1059         ;
1060
1061 checklist:      checklist check         { ; }
1062         |       check                   { ; }
1063         ;
1064
1065 check:          TOKEN                   {
1066                         if(strcmp($<id>1,"type")==0) {
1067                                 Node *node = new_check(TYPE_CHECK,NULL);
1068                                 checks = g_list_append(checks,node);
1069                         } else if(strcmp($<id>1,"null")==0) {
1070                                 Node *node = new_check(NULL_CHECK,NULL);
1071                                 checks = g_list_append(checks,node);
1072                         } else {
1073                                 yyerror(_("parse error"));
1074                                 YYERROR;
1075                         }
1076                         g_free($<id>1);
1077                                         }
1078         |       '>' numtok              {
1079                         Node *node = new_check(GT_CHECK,$<id>2);
1080                         checks = g_list_append(checks,node);
1081                                         }
1082         |       '<' numtok              {
1083                         Node *node = new_check(LT_CHECK,$<id>2);
1084                         checks = g_list_append(checks,node);
1085                                         }
1086         |       '>' '=' numtok          {
1087                         Node *node = new_check(GE_CHECK,$<id>3);
1088                         checks = g_list_append(checks,node);
1089                                         }
1090         |       '<' '=' numtok          {
1091                         Node *node = new_check(LE_CHECK,$<id>3);
1092                         checks = g_list_append(checks,node);
1093                                         }
1094         |       '=' '=' numtok          {
1095                         Node *node = new_check(EQ_CHECK,$<id>3);
1096                         checks = g_list_append(checks,node);
1097                                         }
1098         |       '!' '=' numtok          {
1099                         Node *node = new_check(NE_CHECK,$<id>3);
1100                         checks = g_list_append(checks,node);
1101                                         }
1102         ;
1103
1104 numtok:         NUMBER                  { $<id>$ = $<id>1; }
1105         |       '-' NUMBER              {
1106                         $<id>$ = g_strconcat("-",$<id>2,NULL);
1107                         g_free($<id>2);
1108                                         }
1109         |       TOKEN                   { $<id>$ = $<id>1; }
1110         ;
1111
1112 %%