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                 print_error(TRUE, _("The number of GTK arguments and "
 145                                     "function arguments for a signal "
 146                                     "don't seem to match"), line_no);
 147         }
 148         if(g_list_length(gtktypes) > 2) {
 149                 GList *li;
 150                 for(li = gtktypes->next; li; li = li->next) {
 151                         if(strcmp(li->data, "NONE")==0) {
 152                                 print_error(FALSE,
 153                                             _("NONE can only appear in an "
 154                                               "argument list by itself"),
 155                                             line_no);
 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)
 239 {
 240         Node *node;
 241         Node *type;
 242         GList *ch = NULL;
 243         type = new_type(g_strdup(((Class *)class)->otype), g_strdup("*"), NULL);
 244         ch = g_list_append(ch,new_check(NULL_CHECK,NULL));
 245         ch = g_list_append(ch,new_check(TYPE_CHECK,NULL));
 246         node = new_funcarg((Type *)type,id,ch);
 247         funcargs = g_list_prepend(funcargs, node);
 248 }
 249
 250 static Variable *
 251 find_var_or_die(const char *id, int line)
 252 {
 253         GList *li;
 254         char *s;
 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         s = g_strdup_printf(_("Variable %s not defined here"), id);
 267         print_error(FALSE, s, line);
 268
 269         g_assert_not_reached();
 270         return NULL;
 271 }
 272
 273 static gboolean
 274 set_return_value(char *type, char *val)
 275 {
 276         if(strcmp(type, "onerror")==0) {
 277                 if(!onerror) {
 278                         onerror = val;
 279                         return TRUE;
 280                 } else
 281                         return FALSE;
 282         } else if(strcmp(type, "defreturn")==0) {
 283                 if(!defreturn) {
 284                         defreturn = val;
 285                         return TRUE;
 286                 } else
 287                         return FALSE;
 288         }
 289         return FALSE;
 290 }
 291
 292 %}
 293
 294 %union {
 295         char *id;
 296         GString *cbuf;
 297         GList *list;
 298         int line;
 299         int sigtype;
 300 }
 301
 302 %token CLASS FROM
 303 %token CONST VOID STRUCT UNION ENUM THREEDOTS
 304 %token SIGNED UNSIGNED LONG SHORT INT FLOAT DOUBLE CHAR
 305
 306 %token <id> TOKEN NUMBER TYPETOKEN ARRAY_DIM
 307 %token <cbuf> CCODE HTCODE PHCODE HCODE ACODE ATCODE
 308 %token <line> PUBLIC PRIVATE PROTECTED CLASSWIDE ARGUMENT VIRTUAL SIGNAL OVERRIDE
 309
 310 %%
 311
 312 prog:           ccodes class ccodes     { ; }
 313         |       class ccodes            { ; }
 314         |       ccodes class            { ; }
 315         |       class                   { ; }
 316         ;
 317
 318 ccode:          CCODE                   {
 319                         Node *node = new_ccode(C_CCODE,($<cbuf>1)->str,
 320                                                ccode_line);
 321                         nodes = g_list_append(nodes,node);
 322                         g_string_free($<cbuf>1,FALSE);
 323                                         }
 324         |       HCODE                   {
 325                         Node *node = new_ccode(H_CCODE,($<cbuf>1)->str,
 326                                                ccode_line);
 327                         nodes = g_list_append(nodes,node);
 328                         g_string_free($<cbuf>1,FALSE);
 329                                         }
 330         |       HTCODE                  {
 331                         Node *node = new_ccode(HT_CCODE,($<cbuf>1)->str,
 332                                                ccode_line);
 333                         nodes = g_list_append(nodes,node);
 334                         g_string_free($<cbuf>1,FALSE);
 335                                         }
 336         |       PHCODE                  {
 337                         Node *node = new_ccode(PH_CCODE,($<cbuf>1)->str,
 338                                                ccode_line);
 339                         nodes = g_list_append(nodes,node);
 340                         g_string_free($<cbuf>1,FALSE);
 341                                         }
 342         |       ACODE                   {
 343                         Node *node = new_ccode(A_CCODE,($<cbuf>1)->str,
 344                                                ccode_line);
 345                         nodes = g_list_append(nodes,node);
 346                         g_string_free($<cbuf>1,FALSE);
 347                                         }
 348         |       ATCODE                  {
 349                         Node *node = new_ccode(AT_CCODE,($<cbuf>1)->str,
 350                                                ccode_line);
 351                         nodes = g_list_append(nodes,node);
 352                         g_string_free($<cbuf>1,FALSE);
 353                                         }
 354         ;
 355
 356 ccodes:         ccodes ccode            { ; }
 357         |       ccode                   { ; }
 358         ;
 359
 360 class:          classdec '{' classcode '}'      {
 361                         ((Class *)class)->nodes = class_nodes;
 362                         class_nodes = NULL;
 363                         nodes = g_list_append(nodes,class);
 364                                                 }
 365         |       classdec '{' '}'                {
 366                         ((Class *)class)->nodes = NULL;
 367                         class_nodes = NULL;
 368                         nodes = g_list_append(nodes,class);
 369                                                 }
 370         ;
 371
 372 classdec:       CLASS TYPETOKEN FROM TYPETOKEN  chunk {
 373                         class = new_class($<id>2,$<id>4,chunk_size,NULL);
 374                                                 }
 375         ;
 376
 377 chunk:
 378         | '(' TOKEN TOKEN ')' {
 379                         if(strcmp($<id>2,"chunks") == 0) {
 380                                         chunk_size = g_strdup($<id>4);
 381                         } else {
 382                                 yyerror(_("parse error"));
 383                                 YYERROR;
 384                         }
 385                 }
 386         | '(' TOKEN NUMBER ')' {
 387                         if(strcmp($<id>2,"chunks") == 0) {
 388                                 if(atoi($<id>4) != 0)
 389                                         chunk_size = g_strdup($<id>4);
 390                         } else {
 391                                 yyerror(_("parse error"));
 392                                 YYERROR;
 393                         }
 394                 }
 395         ;
 396
 397 classcode:      classcode thing                 { ; }
 398         |       thing                           { ; }
 399         ;
 400
 401 thing:          method                          { ; }
 402         |       variable                        { ; }
 403         |       argument                        { ; }
 404         |       ';'                             { ; }
 405         ;
 406
 407 scope:          PUBLIC                  { the_scope = PUBLIC_SCOPE; }
 408         |       PRIVATE                 { the_scope = PRIVATE_SCOPE; }
 409         |       PROTECTED               { the_scope = PROTECTED_SCOPE; }
 410         |       CLASSWIDE               { the_scope = CLASS_SCOPE; }
 411         ;
 412
 413 destructor:     TOKEN TOKEN     {
 414                         if(strcmp($<id>1, "destroywith")==0) {
 415                                 g_free($<id>1);
 416                                 destructor = $<id>2;
 417                                 destructor_line = line_no;
 418                                 destructor_simple = TRUE;
 419                         } else {
 420                                 g_free($<id>1);
 421                                 g_free($<id>2);
 422                                 yyerror(_("parse error"));
 423                                 YYERROR;
 424                         }
 425                                 }
 426         |       TOKEN '{' CCODE         {
 427                         if(strcmp($<id>1, "destroy")==0) {
 428                                 g_free($<id>1);
 429                                 destructor = ($<cbuf>3)->str;
 430                                 g_string_free($<cbuf>3, FALSE);
 431                                 destructor_line = ccode_line;
 432                                 destructor_simple = FALSE;
 433                         } else {
 434                                 g_free($<id>1);
 435                                 g_string_free($<cbuf>3, TRUE);
 436                                 yyerror(_("parse error"));
 437                                 YYERROR;
 438                         }
 439                                         }
 440         ;
 441
 442 initializer:    '=' numtok      {
 443                         initializer = $<id>2;
 444                         initializer_line = ccode_line;
 445                                 }
 446         |       '=' '{' CCODE   {
 447                         initializer = ($<cbuf>3)->str;
 448                         initializer_line = ccode_line;
 449                         g_string_free($<cbuf>3, FALSE);
 450                                 }
 451         ;
 452
 453
 454 varoptions:     destructor initializer  { ; }
 455         |       initializer destructor  { ; }
 456         |       initializer             { destructor = NULL; }
 457         |       destructor              { initializer = NULL; }
 458         |                               {
 459                         destructor = NULL;
 460                         initializer = NULL;
 461                                         }
 462         ;
 463
 464 variable:       scope type TOKEN varoptions ';'         {
 465                         push_variable($<id>3, the_scope,$<line>1, NULL);
 466                                                 }
 467         |       scope type TOKEN ARRAY_DIM varoptions ';'       {
 468                         push_variable($<id>3, the_scope, $<line>1, $<id>4);
 469                                                 }
 470         ;
 471 argument:       ARGUMENT flags argtype TOKEN TOKEN '{' CCODE TOKEN '{' CCODE ';' {
 472                         if(strcmp($<id>5,"get")==0 &&
 473                            strcmp($<id>8,"set")==0) {
 474                                 Node *node;
 475                                 Type *type = pop_type();
 476                                 g_free($<id>5); g_free($<id>8);
 477                                 node = new_argument($<id>3,type,$<list>2,$<id>4,
 478                                                     ($<cbuf>7)->str,$<line>6,
 479                                                     ($<cbuf>10)->str,$<line>9,
 480                                                     $<line>1);
 481                                 g_string_free($<cbuf>7,FALSE);
 482                                 g_string_free($<cbuf>10,FALSE);
 483                                 class_nodes = g_list_append(class_nodes,node);
 484                         } else if(strcmp($<id>5,"set")==0 &&
 485                                 strcmp($<id>8,"get")==0) {
 486                                 Node *node;
 487                                 Type *type = pop_type();
 488                                 g_free($<id>5); g_free($<id>8);
 489                                 node = new_argument($<id>3,type,$<list>2,$<id>4,
 490                                                     ($<cbuf>10)->str,$<line>9,
 491                                                     ($<cbuf>7)->str,$<line>6,
 492                                                     $<line>1);
 493                                 g_string_free($<cbuf>10,FALSE);
 494                                 g_string_free($<cbuf>7,FALSE);
 495                                 class_nodes = g_list_append(class_nodes,node);
 496                         } else {
 497                                 g_free($<id>3); g_free($<id>4);
 498                                 g_free($<id>5); g_free($<id>8);
 499                                 g_list_foreach($<list>2,(GFunc)g_free,NULL);
 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_string_free($<cbuf>7,TRUE);
 530                                 yyerror(_("parse error"));
 531                                 YYERROR;
 532                         }
 533                                                 }
 534         |       ARGUMENT flags argtype TOKEN TOKEN {
 535                         Node *node;
 536                         char *get, *set = NULL;
 537                         Variable *var;
 538                         Type *type;
 539                         char *root;
 540
 541                         if(strcmp($<id>5, "link")!=0 &&
 542                            strcmp($<id>5, "stringlink")!=0 &&
 543                            strcmp($<id>5, "objectlink")!=0) {
 544                                 g_free($<id>5); g_free($<id>3);
 545                                 g_free($<id>4);
 546                                 g_list_foreach($<list>2,(GFunc)g_free,NULL);
 547                                 yyerror(_("parse error"));
 548                                 YYERROR;
 549                         }
 550
 551                         type = pop_type();
 552
 553                         var = find_var_or_die($<id>4, $<line>1);
 554                         if(var->scope == PRIVATE_SCOPE)
 555                                 root = "self->_priv";
 556                         else if(var->scope == CLASS_SCOPE)
 557                                 root = "SELF_CLASS(GTK_OBJECT(self)->klass)";
 558                         else
 559                                 root = "self";
 560
 561                         if(strcmp($<id>5, "link")==0) {
 562                                 set = g_strdup_printf("%s->%s = ARG;",
 563                                                       root, $<id>4);
 564                         } else if(strcmp($<id>5, "stringlink")==0) {
 565                                 set = g_strdup_printf("g_free(%s->%s); "
 566                                                       "%s->%s = g_strdup(ARG);",
 567                                                       root, $<id>4,
 568                                                       root, $<id>4);
 569                         } else if(strcmp($<id>5, "objectlink")==0) {
 570                                 set = g_strdup_printf(
 571                                   "if(%s->%s) "
 572                                    "gtk_object_unref(GTK_OBJECT(%s->%s)); "
 573                                   "%s->%s = ARG; "
 574                                   "if(%s->%s) "
 575                                    "gtk_object_ref(GTK_OBJECT(%s->%s));",
 576                                   root, $<id>4,
 577                                   root, $<id>4,
 578                                   root, $<id>4,
 579                                   root, $<id>4,
 580                                   root, $<id>4);
 581                         } else {
 582                                 g_assert_not_reached();
 583                         }
 584
 585                         if(strcmp($<id>5, "stringlink")==0) {
 586                                 get = g_strdup_printf("ARG = g_strdup(%s->%s);", root, $<id>4);
 587                         } else
 588                                 /* For everything else, get is just straight assignment */
 589                                 get = g_strdup_printf("ARG = %s->%s;", root, $<id>4);
 590
 591                         g_free($<id>5);
 592
 593
 594                         if(!type)
 595                                 type = copy_type(var->vtype);
 596
 597                         node = new_argument($<id>3, type, $<list>2,
 598                                             $<id>4, get, $<line>1,
 599                                             set, $<line>1, $<line>1);
 600                         class_nodes = g_list_append(class_nodes,node);
 601                                                 }
 602         ;
 603
 604 argtype:        TOKEN '(' TOKEN type ')'        {
 605                         if(strcmp($<id>3,"type")!=0) {
 606                                 g_free($<id>1);
 607                                 g_free($<id>3);
 608                                 yyerror(_("parse error"));
 609                                 YYERROR;
 610                         }
 611                         $<id>$ = $<id>1;
 612                                                 }
 613         |       TOKEN                           {
 614                         $<id>$ = $<id>1;
 615                         typestack = g_list_prepend(typestack,NULL);
 616                                                 }
 617         ;
 618
 619 flags:          '(' flaglist ')'                { $<list>$ = $<list>2; }
 620         |                                       { $<list>$ = NULL; }
 621         ;
 622
 623 flaglist:       TOKEN '|' flaglist              {
 624                         $<list>$ = g_list_append($<list>3,$<id>1);
 625                                                 }
 626         |       TOKEN                           {
 627                         $<list>$ = g_list_append(NULL,$<id>1);
 628                                                 }
 629         ;
 630
 631
 632 type:           specifier_list pointer                          {
 633                         Node *node = new_type($<id>1, $<id>2, NULL);
 634                         typestack = g_list_prepend(typestack,node);
 635                                                         }
 636         |       specifier_list                          {
 637                         Node *node = new_type($<id>1, NULL, NULL);
 638                         typestack = g_list_prepend(typestack,node);
 639                                                         }
 640         ;
 641
 642 /* The special cases are neccessary to avoid conflicts */
 643 specifier_list: spec_list                               {
 644                         $<id>$ = $<id>1;
 645                                                         }
 646         |       TOKEN                                   {
 647                         $<id>$ = $<id>1;
 648                                                         }
 649         |       CONST TOKEN                             {
 650                         $<id>$ = g_strconcat("const ", $<id>2, NULL);
 651                         g_free($<id>2);
 652                                                         }
 653         |       TOKEN CONST                             {
 654                         $<id>$ = g_strconcat($<id>1, " const", NULL);
 655                         g_free($<id>1);
 656                                                         }
 657         |       strunionenum TOKEN                      {
 658                         $<id>$ = g_strconcat($<id>1, " ", $<id>2, NULL);
 659                         g_free($<id>2);
 660                                                         }
 661         |       CONST strunionenum TOKEN                {
 662                         $<id>$ = g_strconcat("const ", $<id>2, " ",
 663                                              $<id>3, NULL);
 664                         g_free($<id>3);
 665                                                         }
 666         |       strunionenum TOKEN CONST                {
 667                         $<id>$ = g_strconcat($<id>1, " ",
 668                                              $<id>2, " const", NULL);
 669                         g_free($<id>2);
 670                                                         }
 671         ;
 672
 673 /* The special const cases take care of conflicts ! */
 674 spec_list:      specifier spec_list                     {
 675                         $<id>$ = g_strconcat($<id>1, " ", $<id>2, NULL);
 676                         g_free($<id>2);
 677                                                         }
 678         |       TYPETOKEN spec_list                     {
 679                         $<id>$ = g_strconcat($<id>1, " ", $<id>2, NULL);
 680                         g_free($<id>1);
 681                         g_free($<id>2);
 682                                                         }
 683         |       CONST spec_list                         {
 684                         $<id>$ = g_strconcat("const ", $<id>2, NULL);
 685                         g_free($<id>2);
 686                                                         }
 687         |       TYPETOKEN                               {
 688                         $<id>$ = $<id>1;
 689                                                         }
 690         |       TYPETOKEN CONST                         {
 691                         $<id>$ = g_strconcat($<id>1, " const", NULL);
 692                         g_free($<id>1);
 693                                                         }
 694         |       specifier                               {
 695                         $<id>$ = g_strdup($<id>1);
 696                                                         }
 697         |       specifier CONST                         {
 698                         $<id>$ = g_strconcat($<id>1, " const", NULL);
 699                                                         }
 700         ;
 701
 702 specifier:      VOID                    { $<id>$ = "void"; }
 703         |       CHAR                    { $<id>$ = "char"; }
 704         |       SHORT                   { $<id>$ = "short"; }
 705         |       INT                     { $<id>$ = "int"; }
 706         |       LONG                    { $<id>$ = "long"; }
 707         |       FLOAT                   { $<id>$ = "float"; }
 708         |       DOUBLE                  { $<id>$ = "double"; }
 709         |       SIGNED                  { $<id>$ = "signed"; }
 710         |       UNSIGNED                { $<id>$ = "unsigned"; }
 711         ;
 712
 713 strunionenum:   STRUCT                  { $<id>$ = "struct"; }
 714         |       UNION                   { $<id>$ = "union"; }
 715         |       ENUM                    { $<id>$ = "enum"; }
 716         ;
 717
 718 pointer:        '*'                     { $<id>$ = g_strdup("*"); }
 719         |       '*' CONST               { $<id>$ = g_strdup("* const"); }
 720         |       '*' pointer             {
 721                                 $<id>$ = g_strconcat("*", $<id>2, NULL);
 722                                 g_free($<id>2);
 723                                         }
 724         |       '*' CONST pointer       {
 725                                 $<id>$ = g_strconcat("* const", $<id>3, NULL);
 726                                 g_free($<id>3);
 727                                         }
 728         ;
 729
 730 /* this never sets the_scope */
 731 simplesigtype:  TOKEN sigtype   {
 732                         if(strcmp($<id>1, "first")==0)
 733                                 $<sigtype>$ = SIGNAL_FIRST_METHOD;
 734                         else if(strcmp($<id>1, "last")==0)
 735                                 $<sigtype>$ = SIGNAL_LAST_METHOD;
 736                         else {
 737                                 yyerror(_("signal must be 'first' or 'last'"));
 738                                 g_free($<id>1);
 739                                 YYERROR;
 740                         }
 741                         g_free($<id>1);
 742                                         }
 743         |       sigtype                 {
 744                         $<sigtype>$ = SIGNAL_LAST_METHOD;
 745                                         }
 746         ;
 747
 748 /* this always sets the_scope */
 749 fullsigtype:    scope TOKEN sigtype     {
 750                         if(strcmp($<id>2,"first")==0)
 751                                 $<sigtype>$ = SIGNAL_FIRST_METHOD;
 752                         else if(strcmp($<id>2,"last")==0)
 753                                 $<sigtype>$ = SIGNAL_LAST_METHOD;
 754                         else {
 755                                 yyerror(_("signal must be 'first' or 'last'"));
 756                                 g_free($<id>2);
 757                                 YYERROR;
 758                         }
 759                         g_free($<id>2);
 760                                         }
 761         |       TOKEN scope sigtype     {
 762                         if(strcmp($<id>1,"first")==0)
 763                                 $<sigtype>$ = SIGNAL_FIRST_METHOD;
 764                         else if(strcmp($<id>1,"last")==0)
 765                                 $<sigtype>$ = SIGNAL_LAST_METHOD;
 766                         else {
 767                                 yyerror(_("signal must be 'first' or 'last'"));
 768                                 g_free($<id>1);
 769                                 YYERROR;
 770                         }
 771                         g_free($<id>1);
 772                                         }
 773         |       scope sigtype           {
 774                         $<sigtype>$ = SIGNAL_LAST_METHOD;
 775                                         }
 776         |       simplesigtype           {
 777                         /* the_scope was default thus public */
 778                         the_scope = PUBLIC_SCOPE;
 779                                         }
 780         ;
 781
 782 sigtype:        TOKEN '(' tokenlist ')'         {
 783                         gtktypes = g_list_prepend(gtktypes, $<id>1);
 784                                                 }
 785         ;
 786
 787 tokenlist:      tokenlist ',' TOKEN             {
 788                         gtktypes = g_list_append(gtktypes, $<id>3);
 789                                                 }
 790         |       TOKEN                           {
 791                         gtktypes = g_list_append(gtktypes, $<id>1);
 792                                                 }
 793         ;
 794
 795 codenocode:     '{' CCODE                       { $<cbuf>$ = $<cbuf>2; }
 796         |       ';'                             { $<cbuf>$ = NULL; }
 797         ;
 798
 799 /*here CCODE will include the ending '}' */
 800 method:         SIGNAL flags fullsigtype type TOKEN '(' funcargs ')' returnvals codenocode {
 801                         if(!has_self) {
 802                                 yyerror(_("signal without 'self' as "
 803                                           "first parameter"));
 804                                 free_all_global_state();
 805                                 YYERROR;
 806                         }
 807                         if(the_scope == CLASS_SCOPE) {
 808                                 yyerror(_("a method cannot be of class scope"));
 809                                 free_all_global_state();
 810                                 YYERROR;
 811                         }
 812                         push_function(the_scope, $<sigtype>3,NULL,
 813                                       $<id>5, $<cbuf>10,$<line>1,
 814                                       ccode_line, vararg, $<list>2);
 815                                                                         }
 816         |       scope SIGNAL flags simplesigtype type TOKEN '(' funcargs ')' returnvals codenocode {
 817                         if(!has_self) {
 818                                 yyerror(_("signal without 'self' as "
 819                                           "first parameter"));
 820                                 free_all_global_state();
 821                                 YYERROR;
 822                         }
 823                         if(the_scope == CLASS_SCOPE) {
 824                                 yyerror(_("a method cannot be of class scope"));
 825                                 free_all_global_state();
 826                                 YYERROR;
 827                         }
 828                         push_function(the_scope, $<sigtype>4, NULL,
 829                                       $<id>6, $<cbuf>11, $<line>2,
 830                                       ccode_line, vararg, $<list>3);
 831                                                                         }
 832         |       VIRTUAL scope type TOKEN '(' funcargs ')' returnvals codenocode {
 833                         if(!has_self) {
 834                                 yyerror(_("virtual method without 'self' as "
 835                                           "first parameter"));
 836                                 free_all_global_state();
 837                                 YYERROR;
 838                         }
 839                         if(the_scope == CLASS_SCOPE) {
 840                                 yyerror(_("a method cannot be of class scope"));
 841                                 free_all_global_state();
 842                                 YYERROR;
 843                         }
 844                         push_function(the_scope, VIRTUAL_METHOD, NULL, $<id>4,
 845                                       $<cbuf>9, $<line>1,
 846                                       ccode_line, vararg, NULL);
 847                                                                         }
 848         |       scope VIRTUAL type TOKEN '(' funcargs ')' returnvals codenocode {
 849                         if(!has_self) {
 850                                 yyerror(_("virtual method without 'self' as "
 851                                           "first parameter"));
 852                                 free_all_global_state();
 853                                 YYERROR;
 854                         }
 855                         if(the_scope == CLASS_SCOPE) {
 856                                 yyerror(_("a method cannot be of class scope"));
 857                                 free_all_global_state();
 858                                 YYERROR;
 859                         }
 860                         push_function(the_scope, VIRTUAL_METHOD, NULL, $<id>4,
 861                                       $<cbuf>9, $<line>2,
 862                                       ccode_line, vararg, NULL);
 863                                                                         }
 864         |       VIRTUAL type TOKEN '(' funcargs ')' returnvals codenocode       {
 865                         if(!has_self) {
 866                                 yyerror(_("virtual method without 'self' as "
 867                                           "first parameter"));
 868                                 free_all_global_state();
 869                                 YYERROR;
 870                         }
 871                         push_function(PUBLIC_SCOPE, VIRTUAL_METHOD, NULL,
 872                                       $<id>3, $<cbuf>8, $<line>1,
 873                                       ccode_line, vararg, NULL);
 874                                                                         }
 875         |       OVERRIDE '(' TYPETOKEN ')' type TOKEN '(' funcargs ')' returnvals codenocode    {
 876                         push_function(NO_SCOPE, OVERRIDE_METHOD, $<id>3,
 877                                       $<id>6, $<cbuf>11,
 878                                       $<line>1, ccode_line,
 879                                       vararg, NULL);
 880                                                                         }
 881         |       scope type TOKEN '(' funcargs ')' returnvals codenocode {
 882                         if(the_scope == CLASS_SCOPE) {
 883                                 yyerror(_("a method cannot be of class scope"));
 884                                 free_all_global_state();
 885                                 YYERROR;
 886                         }
 887                         push_function(the_scope, REGULAR_METHOD, NULL, $<id>3,
 888                                       $<cbuf>8, $<line>1, ccode_line,
 889                                       vararg, NULL);
 890                                                                 }
 891         |       TOKEN '(' TOKEN ')' codenocode  {
 892                         if(strcmp($<id>1, "init")==0) {
 893                                 push_init_arg($<id>3,FALSE);
 894                                 push_function(NO_SCOPE, INIT_METHOD, NULL,
 895                                               $<id>1, $<cbuf>5, $<line>2,
 896                                               ccode_line, FALSE, NULL);
 897                         } else if(strcmp($<id>1, "class_init")==0) {
 898                                 push_init_arg($<id>3,TRUE);
 899                                 push_function(NO_SCOPE, CLASS_INIT_METHOD, NULL,
 900                                               $<id>1, $<cbuf>5, $<line>2,
 901                                               ccode_line, FALSE, NULL);
 902                         } else {
 903                                 g_free($<id>1);
 904                                 g_free($<id>3);
 905                                 g_string_free($<cbuf>5,TRUE);
 906                                 yyerror(_("parse error "
 907                                           "(untyped blocks must be init or "
 908                                           "class_init)"));
 909                                 YYERROR;
 910                         }
 911                                                 }
 912         ;
 913
 914 returnvals:     TOKEN retcode           {
 915                         g_free(onerror); onerror = NULL;
 916                         g_free(defreturn); defreturn = NULL;
 917                         if(!set_return_value($<id>1, $<id>2)) {
 918                                 g_free($<id>1);
 919                                 g_free($<id>2);
 920                                 yyerror(_("parse error"));
 921                                 YYERROR;
 922                         }
 923                         g_free($<id>1);
 924                                         }
 925         |       TOKEN retcode TOKEN retcode     {
 926                         g_free(onerror); onerror = NULL;
 927                         g_free(defreturn); defreturn = NULL;
 928                         if(!set_return_value($<id>1, $<id>2)) {
 929                                 g_free($<id>1); g_free($<id>2);
 930                                 g_free($<id>3); g_free($<id>4);
 931                                 yyerror(_("parse error"));
 932                                 YYERROR;
 933                         }
 934                         if(!set_return_value($<id>3, $<id>4)) {
 935                                 onerror = defreturn = NULL;
 936                                 g_free($<id>1); g_free($<id>2);
 937                                 g_free($<id>3); g_free($<id>4);
 938                                 yyerror(_("parse error"));
 939                                 YYERROR;
 940                         }
 941                         g_free($<id>1);
 942                         g_free($<id>3);
 943                                                 }
 944         |                               {
 945                         g_free(onerror); onerror = NULL;
 946                         g_free(defreturn); defreturn = NULL;
 947                                         }
 948         ;
 949
 950 retcode:        numtok                  { $<id>$ = $<id>1; }
 951         |       '{' CCODE               {
 952                         $<id>$ = ($<cbuf>3)->str;
 953                         g_string_free($<cbuf>3, FALSE);
 954                                         }
 955         ;
 956
 957 funcargs:       VOID                    { vararg = FALSE; has_self = FALSE; }
 958         |       TOKEN                   {
 959                         vararg = FALSE;
 960                         has_self = TRUE;
 961                         if(strcmp($<id>1,"self")==0)
 962                                 push_self($<id>1);
 963                         else {
 964                                 g_free($<id>1);
 965                                 yyerror(_("parse error"));
 966                                 YYERROR;
 967                         }
 968                                         }
 969         |       TOKEN ',' arglist       {
 970                         has_self = TRUE;
 971                         if(strcmp($<id>1,"self")==0)
 972                                 push_self($<id>1);
 973                         else {
 974                                 g_free($<id>1);
 975                                 yyerror(_("parse error"));
 976                                 YYERROR;
 977                         }
 978                                         }
 979         |       arglist                 { has_self = FALSE; }
 980         ;
 981
 982 arglist:        arglist1 ',' THREEDOTS  { vararg = TRUE; }
 983         |       arglist1                { vararg = FALSE; }
 984         ;
 985
 986 arglist1:       arglist1 ',' arg        { ; }
 987         |       arg                     { ; }
 988         ;
 989
 990 arg:            type TOKEN                                      {
 991                         push_funcarg($<id>2,NULL);
 992                                                                 }
 993         |       type TOKEN ARRAY_DIM                            {
 994                         push_funcarg($<id>2,$<id>3);
 995                                                                 }
 996         |       type TOKEN '(' TOKEN checklist ')'              {
 997                         if(strcmp($<id>4,"check")!=0) {
 998                                 yyerror(_("parse error"));
 999                                 YYERROR;
1000                         }
1001                         g_free($<id>4);
1002                         push_funcarg($<id>2,NULL);
1003                                                                 }
1004         |       type TOKEN ARRAY_DIM '(' TOKEN checklist ')'    {
1005                         if(strcmp($<id>5,"check")!=0) {
1006                                 yyerror(_("parse error"));
1007                                 YYERROR;
1008                         }
1009                         g_free($<id>5);
1010                         push_funcarg($<id>2,$<id>3);
1011                                                                 }
1012         ;
1013
1014 checklist:      checklist check         { ; }
1015         |       check                   { ; }
1016         ;
1017
1018 check:          TOKEN                   {
1019                         if(strcmp($<id>1,"type")==0) {
1020                                 Node *node = new_check(TYPE_CHECK,NULL);
1021                                 checks = g_list_append(checks,node);
1022                         } else if(strcmp($<id>1,"null")==0) {
1023                                 Node *node = new_check(NULL_CHECK,NULL);
1024                                 checks = g_list_append(checks,node);
1025                         } else {
1026                                 yyerror(_("parse error"));
1027                                 YYERROR;
1028                         }
1029                         g_free($<id>1);
1030                                         }
1031         |       '>' numtok              {
1032                         Node *node = new_check(GT_CHECK,$<id>2);
1033                         checks = g_list_append(checks,node);
1034                                         }
1035         |       '<' numtok              {
1036                         Node *node = new_check(LT_CHECK,$<id>2);
1037                         checks = g_list_append(checks,node);
1038                                         }
1039         |       '>' '=' numtok          {
1040                         Node *node = new_check(GE_CHECK,$<id>3);
1041                         checks = g_list_append(checks,node);
1042                                         }
1043         |       '<' '=' numtok          {
1044                         Node *node = new_check(LE_CHECK,$<id>3);
1045                         checks = g_list_append(checks,node);
1046                                         }
1047         |       '=' '=' numtok          {
1048                         Node *node = new_check(EQ_CHECK,$<id>3);
1049                         checks = g_list_append(checks,node);
1050                                         }
1051         |       '!' '=' numtok          {
1052                         Node *node = new_check(NE_CHECK,$<id>3);
1053                         checks = g_list_append(checks,node);
1054                                         }
1055         ;
1056
1057 numtok:         NUMBER                  { $<id>$ = $<id>1; }
1058         |       '-' NUMBER              {
1059                         $<id>$ = g_strconcat("-",$<id>2,NULL);
1060                         g_free($<id>2);
1061                                         }
1062         |       TOKEN                   { $<id>$ = $<id>1; }
1063         ;
1064
1065 %%