git.m6w6.name Git - m6w6/ext-psi/blob - src/parser.h

   1 #ifndef _PSI_PARSER_H
   2 #define _PSI_PARSER_H
   3
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <stdarg.h>
   7 #include <string.h>
   8
   9 #include <Zend/zend_types.h>
  10
  11 #include "parser_proc.h"
  12
  13 #define BSIZE 256
  14
  15 typedef int token_t;
  16
  17 /* in php_psi.h */
  18 size_t psi_t_alignment(token_t);
  19 size_t psi_t_size(token_t);
  20
  21 typedef struct PSI_Token {
  22         token_t type;
  23         unsigned line;
  24         size_t size;
  25         char text[1];
  26 } PSI_Token;
  27
  28 typedef struct decl_type {
  29         char *name;
  30         token_t type;
  31         struct decl_type *real;
  32         struct decl_struct *strct;
  33 } decl_type;
  34
  35 static inline decl_type *init_decl_type(token_t type, const char *name) {
  36         decl_type *t = calloc(1, sizeof(*t));
  37         t->type = type;
  38         t->name = strdup(name);
  39         return t;
  40 }
  41
  42 static inline decl_type *real_decl_type(decl_type *type) {
  43         while (type->real) {
  44                 type = type->real;
  45         }
  46         return type;
  47 }
  48
  49 static inline void free_decl_type(decl_type *type) {
  50         free(type->name);
  51         free(type);
  52 }
  53
  54 typedef struct decl_typedef {
  55         char *alias;
  56         decl_type *type;
  57 } decl_typedef;
  58
  59 static inline decl_typedef *init_decl_typedef(const char *name, decl_type *type) {
  60         decl_typedef *t = calloc(1, sizeof(*t));
  61         t->alias = strdup(name);
  62         t->type = type;
  63         return t;
  64 }
  65
  66 static inline void free_decl_typedef(decl_typedef *t) {
  67         free(t->alias);
  68         free_decl_type(t->type);
  69         free(t);
  70 }
  71
  72 typedef struct decl_typedefs {
  73         size_t count;
  74         decl_typedef **list;
  75 } decl_typedefs;
  76
  77 static inline decl_typedefs *add_decl_typedef(decl_typedefs *defs, decl_typedef *def) {
  78         if (!defs) {
  79                 defs = calloc(1, sizeof(*defs));
  80         }
  81         defs->list = realloc(defs->list, ++defs->count * sizeof(*defs->list));
  82         defs->list[defs->count-1] = def;
  83         return defs;
  84 }
  85
  86 static void free_decl_typedefs(decl_typedefs *defs) {
  87         size_t i;
  88
  89         for (i = 0; i < defs->count; ++i) {
  90                 free_decl_typedef(defs->list[i]);
  91         }
  92         free(defs->list);
  93         free(defs);
  94 }
  95
  96 typedef struct decl_var {
  97         char *name;
  98         unsigned pointer_level;
  99         unsigned array_size;
 100         struct decl_arg *arg;
 101 } decl_var;
 102
 103 static inline decl_var *init_decl_var(const char *name, unsigned pl, unsigned as) {
 104         decl_var *v = calloc(1, sizeof(*v));
 105         v->name = (char *) strdup((const char *) name);
 106         v->pointer_level = pl;
 107         v->array_size = as;
 108         return v;
 109 }
 110
 111 static inline void free_decl_var(decl_var *var) {
 112         free(var->name);
 113         free(var);
 114 }
 115
 116 typedef struct decl_struct_layout {
 117         size_t pos;
 118         size_t len;
 119 } decl_struct_layout;
 120
 121 static inline decl_struct_layout *init_decl_struct_layout(size_t pos, size_t len) {
 122         decl_struct_layout *l = calloc(1, sizeof(*l));
 123
 124         l->pos = pos;
 125         l->len = len;
 126         return l;
 127 }
 128
 129 static inline void free_decl_struct_layout(decl_struct_layout *l) {
 130         free(l);
 131 }
 132
 133 typedef struct decl_arg {
 134         decl_type *type;
 135         decl_var *var;
 136         decl_struct_layout *layout;
 137         struct let_stmt *let;
 138 } decl_arg;
 139
 140 static inline decl_arg *init_decl_arg(decl_type *type, decl_var *var) {
 141         decl_arg *arg = calloc(1, sizeof(*arg));
 142         arg->type = type;
 143         arg->var = var;
 144         return arg;
 145 }
 146
 147 static inline void free_decl_arg(decl_arg *arg) {
 148         free_decl_type(arg->type);
 149         free_decl_var(arg->var);
 150         if (arg->layout) {
 151                 free_decl_struct_layout(arg->layout);
 152         }
 153         free(arg);
 154 }
 155
 156 typedef struct decl_vars {
 157         decl_var **vars;
 158         size_t count;
 159 } decl_vars;
 160
 161 static inline decl_vars *init_decl_vars(decl_var *var) {
 162         decl_vars *vars = calloc(1, sizeof(*vars));
 163         if (var) {
 164                 vars->count = 1;
 165                 vars->vars = calloc(1, sizeof(*vars->vars));
 166                 vars->vars[0] = var;
 167         }
 168         return vars;
 169 }
 170
 171 static inline decl_vars *add_decl_var(decl_vars *vars, decl_var *var) {
 172         vars->vars = realloc(vars->vars, ++vars->count * sizeof(*vars->vars));
 173         vars->vars[vars->count-1] = var;
 174         return vars;
 175 }
 176
 177 static inline void free_decl_vars(decl_vars *vars) {
 178         size_t i;
 179
 180         for (i = 0; i < vars->count; ++i) {
 181                 free_decl_var(vars->vars[i]);
 182         }
 183         free(vars->vars);
 184         free(vars);
 185 }
 186
 187 typedef struct decl_args {
 188         decl_arg **args;
 189         size_t count;
 190 } decl_args;
 191
 192 static inline decl_args *init_decl_args(decl_arg *arg) {
 193         decl_args *args = calloc(1, sizeof(*args));
 194         if (arg) {
 195                 args->count = 1;
 196                 args->args = calloc(1, sizeof(*args->args));
 197                 args->args[0] = arg;
 198         }
 199         return args;
 200 }
 201
 202 static inline decl_args *add_decl_arg(decl_args *args, decl_arg *arg) {
 203         args->args = realloc(args->args, ++args->count * sizeof(*args->args));
 204         args->args[args->count-1] = arg;
 205         return args;
 206 }
 207
 208 static inline void free_decl_args(decl_args *args) {
 209         size_t i;
 210
 211         for (i = 0; i < args->count; ++i) {
 212                 free_decl_arg(args->args[i]);
 213         }
 214         free(args->args);
 215         free(args);
 216 }
 217
 218 typedef struct decl_abi {
 219         char *convention;
 220 } decl_abi;
 221
 222 static inline decl_abi *init_decl_abi(const char *convention) {
 223         decl_abi *abi = calloc(1, sizeof(*abi));
 224         abi->convention = strdup(convention);
 225         return abi;
 226 }
 227
 228 static inline void free_decl_abi(decl_abi *abi) {
 229         free(abi->convention);
 230         free(abi);
 231 }
 232
 233 typedef struct decl {
 234         decl_abi *abi;
 235         decl_arg *func;
 236         decl_args *args;
 237         void *dlptr;
 238 } decl;
 239
 240 static inline decl* init_decl(decl_abi *abi, decl_arg *func, decl_args *args) {
 241         decl *d = calloc(1, sizeof(*d));
 242         d->abi = abi;
 243         d->func = func;
 244         d->args = args;
 245         return d;
 246 }
 247
 248 static inline void free_decl(decl *d) {
 249         free_decl_abi(d->abi);
 250         free_decl_arg(d->func);
 251         if (d->args) {
 252                 free_decl_args(d->args);
 253         }
 254         free(d);
 255 }
 256
 257 typedef struct decls {
 258         size_t count;
 259         decl **list;
 260 } decls;
 261
 262 static inline decls *add_decl(decls *decls, decl *decl) {
 263         if (!decls) {
 264                 decls = calloc(1, sizeof(*decls));
 265         }
 266         decls->list = realloc(decls->list, ++decls->count * sizeof(*decls->list));
 267         decls->list[decls->count-1] = decl;
 268         return decls;
 269 }
 270
 271 static inline void free_decls(decls *decls) {
 272         size_t i;
 273
 274         for (i = 0; i < decls->count; ++i) {
 275                 free_decl(decls->list[i]);
 276         }
 277         free(decls->list);
 278         free(decls);
 279 }
 280
 281 typedef struct decl_struct {
 282         char *name;
 283         decl_args *args;
 284         size_t size;
 285 } decl_struct;
 286
 287 static inline decl_struct *init_decl_struct(const char *name, decl_args *args) {
 288         decl_struct *s = calloc(1, sizeof(*s));
 289         s->name = strdup(name);
 290         s->args = args;
 291         return s;
 292 }
 293
 294 static inline void free_decl_struct(decl_struct *s) {
 295         if (s->args) {
 296                 free_decl_args(s->args);
 297         }
 298         free(s->name);
 299         free(s);
 300 }
 301
 302 typedef struct decl_structs {
 303         size_t count;
 304         decl_struct **list;
 305 } decl_structs;
 306
 307 static inline decl_structs *add_decl_struct(decl_structs *ss, decl_struct *s) {
 308         if (!ss) {
 309                 ss = calloc(1, sizeof(*ss));
 310         }
 311         ss->list = realloc(ss->list, ++ss->count * sizeof(*ss->list));
 312         ss->list[ss->count-1] = s;
 313         return ss;
 314 }
 315
 316 static inline void free_decl_structs(decl_structs *ss) {
 317         size_t i;
 318
 319         for (i = 0; i < ss->count; ++i) {
 320                 free_decl_struct(ss->list[i]);
 321         }
 322         free(ss->list);
 323         free(ss);
 324 }
 325
 326 typedef union impl_val {
 327         char cval;
 328         int8_t i8;
 329         short sval;
 330         int16_t i16;
 331         int ival;
 332         int32_t i32;
 333         long lval;
 334         int64_t i64;
 335         float fval;
 336         double dval;
 337         union {
 338                 zend_bool bval;
 339                 zend_long lval;
 340                 zend_string *str;
 341         } zend;
 342         void *ptr;
 343         uint8_t _dbg[sizeof(void *)];
 344 } impl_val;
 345
 346 static inline impl_val *deref_impl_val(impl_val *ret_val, decl_var *var) {
 347         unsigned i;
 348
 349         if (var->arg->var != var) for (i = 0; i < var->pointer_level; ++i) {
 350                 ret_val = *(void **) ret_val;
 351         }
 352         return ret_val;
 353 }
 354
 355 typedef struct impl_type {
 356         char *name;
 357         token_t type;
 358 } impl_type;
 359
 360 static inline impl_type *init_impl_type(token_t type, const char *name) {
 361         impl_type *t = calloc(1, sizeof(*t));
 362
 363         t->type = type;
 364         t->name = strdup(name);
 365         return t;
 366 }
 367
 368 static inline void free_impl_type(impl_type *type) {
 369         free(type->name);
 370         free(type);
 371 }
 372
 373 typedef struct impl_var {
 374         char *name;
 375         unsigned reference:1;
 376 } impl_var;
 377
 378 static inline impl_var *init_impl_var(const char *name, int is_reference) {
 379         impl_var *var = calloc(1, sizeof(*var));
 380         var->name = strdup(name);
 381         var->reference = is_reference;
 382         return var;
 383 }
 384
 385 static inline void free_impl_var(impl_var *var) {
 386         free(var->name);
 387         free(var);
 388 }
 389
 390 typedef struct impl_def_val {
 391         token_t type;
 392         char *text;
 393 } impl_def_val;
 394
 395 static inline impl_def_val *init_impl_def_val(token_t t, const char *text) {
 396         impl_def_val *def = calloc(1, sizeof(*def));
 397         def->type = t;
 398         def->text = strdup(text);
 399         return def;
 400 }
 401
 402 static inline void free_impl_def_val(impl_def_val *def) {
 403         free(def->text);
 404         free(def);
 405 }
 406
 407 typedef struct impl_arg {
 408         impl_type *type;
 409         impl_var *var;
 410         impl_def_val *def;
 411         impl_val val;
 412         zval *_zv;
 413 } impl_arg;
 414
 415 static inline impl_arg *init_impl_arg(impl_type *type, impl_var *var, impl_def_val *def) {
 416         impl_arg *arg = calloc(1, sizeof(*arg));
 417         arg->type = type;
 418         arg->var = var;
 419         arg->def = def;
 420         return arg;
 421 }
 422
 423 static inline void free_impl_arg(impl_arg *arg) {
 424         free_impl_type(arg->type);
 425         free_impl_var(arg->var);
 426         if (arg->def) {
 427                 free_impl_def_val(arg->def);
 428         }
 429         free(arg);
 430 }
 431
 432 typedef struct impl_args {
 433         impl_arg **args;
 434         size_t count;
 435 } impl_args;
 436
 437 static inline impl_args *init_impl_args(impl_arg *arg) {
 438         impl_args *args = calloc(1, sizeof(*args));
 439         if (arg) {
 440                 args->count = 1;
 441                 args->args = calloc(1, sizeof(*args->args));
 442                 args->args[0] = arg;
 443         }
 444         return args;
 445 }
 446
 447 static inline impl_args *add_impl_arg(impl_args *args, impl_arg *arg) {
 448         args->args = realloc(args->args, ++args->count * sizeof(*args->args));
 449         args->args[args->count-1] = arg;
 450         return args;
 451 }
 452
 453 static inline void free_impl_args(impl_args *args) {
 454         size_t i;
 455
 456         for (i = 0; i < args->count; ++i) {
 457                 free_impl_arg(args->args[i]);
 458         }
 459         free(args->args);
 460         free(args);
 461 }
 462
 463 typedef struct impl_func {
 464         char *name;
 465         impl_args *args;
 466         impl_type *return_type;
 467         unsigned return_reference:1;
 468 } impl_func;
 469
 470 static inline impl_func *init_impl_func(char *name, impl_args *args, impl_type *type, int ret_reference) {
 471         impl_func *func = calloc(1, sizeof(*func));
 472         func->name = strdup(name);
 473         func->args = args ? args : init_impl_args(NULL);
 474         func->return_type = type;
 475         func->return_reference = ret_reference;
 476         return func;
 477 }
 478
 479 static inline void free_impl_func(impl_func *f) {
 480         free_impl_type(f->return_type);
 481         free_impl_args(f->args);
 482         free(f->name);
 483         free(f);
 484 }
 485
 486 typedef struct let_calloc {
 487         size_t n;
 488         decl_type *type;
 489 } let_calloc;
 490
 491 static inline let_calloc *init_let_calloc(long n, decl_type *type) {
 492         let_calloc *alloc = calloc(1, sizeof(*alloc));
 493         alloc->n = n;
 494         alloc->type = type;
 495         return alloc;
 496 }
 497
 498 static inline void free_let_calloc(let_calloc *alloc) {
 499         free_decl_type(alloc->type);
 500         free(alloc);
 501 }
 502
 503 typedef struct let_func {
 504         token_t type;
 505         char *name;
 506         let_calloc *alloc;
 507 } let_func;
 508
 509 static inline let_func *init_let_func(token_t type, const char *name, let_calloc *alloc) {
 510         let_func *func = calloc(1, sizeof(*func));
 511         func->type = type;
 512         func->name = strdup(name);
 513         func->alloc = alloc;
 514         return func;
 515 }
 516
 517 static inline void free_let_func(let_func *func) {
 518         if (func->alloc) {
 519                 free_let_calloc(func->alloc);
 520         }
 521         free(func->name);
 522         free(func);
 523 }
 524
 525 typedef struct let_value {
 526         let_func *func;
 527         impl_var *var;
 528         unsigned is_reference:1;
 529 } let_value;
 530
 531 static inline let_value *init_let_value(let_func *func, impl_var *var, int is_reference) {
 532         let_value *val = calloc(1, sizeof(*val));
 533         val->is_reference = is_reference;
 534         val->func = func;
 535         val->var = var;
 536         return val;
 537 }
 538
 539 static inline void free_let_value(let_value *val) {
 540         if (val->func) {
 541                 free_let_func(val->func);
 542         }
 543         if (val->var) {
 544                 free_impl_var(val->var);
 545         }
 546         free(val);
 547 }
 548
 549 typedef struct let_stmt {
 550         decl_var *var;
 551         let_value *val;
 552         impl_arg *arg;
 553         impl_val out;
 554         void *ptr;
 555         void *mem;
 556 } let_stmt;
 557
 558 static inline let_stmt *init_let_stmt(decl_var *var, let_value *val) {
 559         let_stmt *let = calloc(1, sizeof(*let));
 560         let->var = var;
 561         let->val = val;
 562         return let;
 563 }
 564
 565 static inline void free_let_stmt(let_stmt *stmt) {
 566         free_decl_var(stmt->var);
 567         if (stmt->val) {
 568                 free_let_value(stmt->val);
 569         }
 570         free(stmt);
 571 }
 572
 573 typedef struct set_func {
 574         token_t type;
 575         char *name;
 576 } set_func;
 577
 578 static inline set_func *init_set_func(token_t type, const char *name) {
 579         set_func *func = calloc(1, sizeof(*func));
 580         func->type = type;
 581         func->name = strdup(name);
 582         return func;
 583 }
 584
 585 static inline void free_set_func(set_func *func) {
 586         free(func->name);
 587         free(func);
 588 }
 589
 590 typedef struct set_value {
 591         set_func *func;
 592         decl_vars *vars;
 593 } set_value;
 594
 595 static inline set_value *init_set_value(set_func *func, decl_vars *vars) {
 596         set_value *val = calloc(1, sizeof(*val));
 597         val->func = func;
 598         val->vars = vars;
 599         return val;
 600 }
 601
 602 static inline void free_set_value(set_value *val) {
 603         free_set_func(val->func);
 604         free_decl_vars(val->vars);
 605         free(val);
 606 }
 607
 608 typedef struct set_stmt {
 609         impl_var *var;
 610         set_value *val;
 611         impl_arg *arg;
 612 } set_stmt;
 613
 614 static inline set_stmt *init_set_stmt(impl_var *var, set_value *val) {
 615         set_stmt *set = calloc(1, sizeof(*set));
 616         set->var = var;
 617         set->val = val;
 618         return set;
 619 }
 620
 621 static inline void free_set_stmt(set_stmt *set) {
 622         free_impl_var(set->var);
 623         free_set_value(set->val);
 624         free(set);
 625 }
 626
 627 typedef struct return_stmt {
 628         set_func *func;
 629         decl_var *decl;
 630 } return_stmt;
 631
 632 static inline return_stmt *init_return_stmt(set_func *func, decl_var *decl) {
 633         return_stmt *ret = calloc(1, sizeof(*ret));
 634         ret->func = func;
 635         ret->decl = decl;
 636         return ret;
 637 }
 638
 639 static inline void free_return_stmt(return_stmt *ret) {
 640         free_set_func(ret->func);
 641         free_decl_var(ret->decl);
 642         free(ret);
 643 }
 644
 645 typedef struct free_stmt {
 646         decl_vars *vars;
 647 } free_stmt;
 648
 649 static inline free_stmt *init_free_stmt(decl_vars *vars) {
 650         free_stmt *free_ = calloc(1, sizeof(*free_));
 651         free_->vars = vars;
 652         return free_;
 653 }
 654
 655 static inline void free_free_stmt(free_stmt *free_) {
 656         free_decl_vars(free_->vars);
 657         free(free_);
 658 }
 659
 660 typedef struct impl_stmt {
 661         token_t type;
 662         union {
 663                 let_stmt *let;
 664                 set_stmt *set;
 665                 return_stmt *ret;
 666                 free_stmt *fre;
 667                 void *ptr;
 668         } s;
 669 } impl_stmt;
 670
 671 static inline impl_stmt *init_impl_stmt(token_t type, void *ptr) {
 672         impl_stmt *stmt = calloc(1, sizeof(*stmt));
 673         stmt->type = type;
 674         stmt->s.ptr = ptr;
 675         return stmt;
 676 }
 677
 678 static inline void free_impl_stmt(impl_stmt *stmt) {
 679         switch (stmt->type) {
 680         case PSI_T_LET:
 681                 free_let_stmt(stmt->s.let);
 682                 break;
 683         case PSI_T_SET:
 684                 free_set_stmt(stmt->s.set);
 685                 break;
 686         case PSI_T_RETURN:
 687                 free_return_stmt(stmt->s.ret);
 688                 break;
 689         case PSI_T_FREE:
 690                 free_free_stmt(stmt->s.fre);
 691                 break;
 692         }
 693         free(stmt);
 694 }
 695
 696 typedef struct impl_stmts {
 697         struct {
 698                 return_stmt **list;
 699                 size_t count;
 700         } ret;
 701         struct {
 702                 let_stmt **list;
 703                 size_t count;
 704         } let;
 705         struct {
 706                 set_stmt **list;
 707                 size_t count;
 708         } set;
 709         struct {
 710                 free_stmt **list;
 711                 size_t count;
 712         } fre;
 713 } impl_stmts;
 714
 715 static inline void *add_impl_stmt_ex(void *list, size_t count, void *stmt) {
 716         list = realloc(list, count * sizeof(list));
 717         ((void **)list)[count-1] = stmt;
 718         return list;
 719 }
 720
 721 static inline impl_stmts *add_impl_stmt(impl_stmts *stmts, impl_stmt *stmt) {
 722         switch (stmt->type) {
 723         case PSI_T_RETURN:
 724                 stmts->ret.list = add_impl_stmt_ex(stmts->ret.list, ++stmts->ret.count, stmt->s.ret);
 725                 break;
 726         case PSI_T_LET:
 727                 stmts->let.list = add_impl_stmt_ex(stmts->let.list, ++stmts->let.count, stmt->s.let);
 728                 break;
 729         case PSI_T_SET:
 730                 stmts->set.list = add_impl_stmt_ex(stmts->set.list, ++stmts->set.count, stmt->s.set);
 731                 break;
 732         case PSI_T_FREE:
 733                 stmts->fre.list = add_impl_stmt_ex(stmts->fre.list, ++stmts->fre.count, stmt->s.fre);
 734                 break;
 735         }
 736         free(stmt);
 737         return stmts;
 738 }
 739
 740 static inline impl_stmts *init_impl_stmts(impl_stmt *stmt) {
 741         impl_stmts *stmts = calloc(1, sizeof(*stmts));
 742         return add_impl_stmt(stmts, stmt);
 743 }
 744
 745 static inline void free_impl_stmts(impl_stmts *stmts) {
 746         size_t i;
 747
 748         for (i = 0; i < stmts->let.count; ++i) {
 749                 free_let_stmt(stmts->let.list[i]);
 750         }
 751         free(stmts->let.list);
 752         for (i = 0; i < stmts->ret.count; ++i) {
 753                 free_return_stmt(stmts->ret.list[i]);
 754         }
 755         free(stmts->ret.list);
 756         for (i = 0; i < stmts->set.count; ++i) {
 757                 free_set_stmt(stmts->set.list[i]);
 758         }
 759         free(stmts->set.list);
 760         for (i = 0; i < stmts->fre.count; ++i) {
 761                 free_free_stmt(stmts->fre.list[i]);
 762         }
 763         free(stmts->fre.list);
 764         free(stmts);
 765 }
 766
 767 typedef struct impl {
 768         impl_func *func;
 769         impl_stmts *stmts;
 770         decl *decl;
 771 } impl;
 772
 773 static inline impl *init_impl(impl_func *func, impl_stmts *stmts) {
 774         impl *i = calloc(1, sizeof(*i));
 775         i->func = func;
 776         i->stmts = stmts;
 777         return i;
 778 }
 779
 780 static inline void free_impl(impl *impl) {
 781         free_impl_func(impl->func);
 782         free_impl_stmts(impl->stmts);
 783         free(impl);
 784 }
 785
 786 typedef struct impls {
 787         size_t count;
 788         impl **list;
 789 } impls;
 790
 791 static inline impls *add_impl(impls *impls, impl *impl) {
 792         if (!impls) {
 793                 impls = calloc(1, sizeof(*impls));
 794         }
 795         impls->list = realloc(impls->list, ++impls->count * sizeof(*impls->list));
 796         impls->list[impls->count-1] = impl;
 797         return impls;
 798 }
 799
 800 static void free_impls(impls *impls) {
 801         size_t i;
 802
 803         for (i = 0; i < impls->count; ++i) {
 804                 free_impl(impls->list[i]);
 805         }
 806         free(impls->list);
 807         free(impls);
 808 }
 809
 810 typedef struct const_type {
 811         token_t type;
 812         char *name;
 813 } const_type;
 814
 815 static inline const_type *init_const_type(token_t type, const char *name) {
 816         const_type *ct = calloc(1, sizeof(*ct));
 817         ct->type = type;
 818         ct->name = strdup(name);
 819         return ct;
 820 }
 821
 822 static inline void free_const_type(const_type *type) {
 823         free(type->name);
 824         free(type);
 825 }
 826
 827 typedef struct constant {
 828         const_type *type;
 829         char *name;
 830         impl_def_val *val;
 831 } constant;
 832
 833 static inline constant *init_constant(const_type *type, const char *name, impl_def_val *val) {
 834         constant *c = calloc(1, sizeof(*c));
 835         c->type = type;
 836         c->name = strdup(name);
 837         c->val = val;
 838         return c;
 839 }
 840
 841 static inline void free_constant(constant *constant) {
 842         free_const_type(constant->type);
 843         free(constant->name);
 844         free_impl_def_val(constant->val);
 845         free(constant);
 846 }
 847
 848 typedef struct constants {
 849         size_t count;
 850         constant **list;
 851 } constants;
 852
 853 static inline constants *add_constant(constants *constants, constant *constant) {
 854         if (!constants) {
 855                 constants = calloc(1, sizeof(*constants));
 856         }
 857         constants->list = realloc(constants->list, ++constants->count * sizeof(*constants->list));
 858         constants->list[constants->count-1] = constant;
 859         return constants;
 860 }
 861
 862 static inline void free_constants(constants *c) {
 863         size_t i;
 864
 865         for (i = 0; i < c->count; ++i) {
 866                 free_constant(c->list[i]);
 867         }
 868         free(c->list);
 869         free(c);
 870 }
 871
 872 #define PSI_ERROR 16
 873 #define PSI_WARNING 32
 874 typedef void (*psi_error_cb)(int type, const char *msg, ...);
 875
 876 typedef struct decl_file {
 877         char *ln;
 878         char *fn;
 879 } decl_file;
 880
 881 static inline void free_decl_file(decl_file *file) {
 882         if (file->ln) {
 883                 free(file->ln);
 884         }
 885         if (file->fn) {
 886                 free(file->fn);
 887         }
 888         memset(file, 0, sizeof(*file));
 889 }
 890
 891 typedef struct decl_libs {
 892         void **dl;
 893         size_t count;
 894 } decl_libs;
 895
 896 static inline void free_decl_libs(decl_libs *libs) {
 897         if (libs->dl) {
 898                 size_t i;
 899                 for (i = 0; i < libs->count; ++i) {
 900                         if (libs->dl[i]) {
 901                                 dlclose(libs->dl[i]);
 902                         }
 903                 }
 904                 free(libs->dl);
 905         }
 906         memset(libs, 0, sizeof(*libs));
 907 }
 908
 909 static inline void add_decl_lib(decl_libs *libs, void *dlopened) {
 910         libs->dl = realloc(libs->dl, ++libs->count * sizeof(*libs->dl));
 911         libs->dl[libs->count-1] = dlopened;
 912 }
 913
 914 #define PSI_DATA(D) ((PSI_Data *) (D))
 915 #define PSI_DATA_MEMBERS \
 916         constants *consts; \
 917         decl_typedefs *defs; \
 918         decl_structs *structs; \
 919         decls *decls; \
 920         impls *impls; \
 921         union { \
 922                 decl_file file; \
 923                 decl_libs libs; \
 924         } psi; \
 925         psi_error_cb error
 926 typedef struct PSI_Data {
 927         PSI_DATA_MEMBERS;
 928 } PSI_Data;
 929
 930 static inline PSI_Data *PSI_DataExchange(PSI_Data *dest, PSI_Data *src) {
 931         if (!dest) {
 932                 dest = malloc(sizeof(*dest));
 933         }
 934         memcpy(dest, src, sizeof(*dest));
 935         memset(src, 0, sizeof(*src));
 936         return dest;
 937 }
 938
 939 static inline void PSI_DataDtor(PSI_Data *data) {
 940         if (data->consts) {
 941                 free_constants(data->consts);
 942         }
 943         if (data->defs) {
 944                 free_decl_typedefs(data->defs);
 945         }
 946         if (data->structs) {
 947                 free_decl_structs(data->structs);
 948         }
 949         if (data->decls) {
 950                 free_decls(data->decls);
 951         }
 952         if (data->impls) {
 953                 free_impls(data->impls);
 954         }
 955         free_decl_file(&data->psi.file);
 956 }
 957
 958 typedef struct PSI_Parser {
 959         PSI_DATA_MEMBERS;
 960         FILE *fp;
 961         unsigned flags;
 962         unsigned errors;
 963         void *proc;
 964         size_t line;
 965         token_t num;
 966         char *cur, *tok, *lim, *eof, *ctx, *mrk, buf[BSIZE];
 967 } PSI_Parser;
 968
 969 static inline PSI_Token *PSI_TokenAlloc(PSI_Parser *P) {
 970         PSI_Token *T;
 971         size_t token_len;
 972
 973         if (P->cur <= P->tok) {
 974                 return NULL;
 975         }
 976
 977         token_len = P->cur - P->tok;
 978
 979         T = calloc(1, sizeof(*T) + token_len);
 980         T->type = P->num;
 981         T->line = P->line;
 982         T->size = token_len;
 983         T->text[token_len] = 0;
 984         memcpy(T->text, P->tok, token_len);
 985
 986         return T;
 987 }
 988
 989 #define PSI_PARSER_DEBUG 0x1
 990
 991 PSI_Parser *PSI_ParserInit(PSI_Parser *P, const char *filename, psi_error_cb error, unsigned flags);
 992 void PSI_ParserSyntaxError(PSI_Parser *P, const char *fn, size_t ln, const char *msg, ...);
 993 size_t PSI_ParserFill(PSI_Parser *P, size_t n);
 994 token_t PSI_ParserScan(PSI_Parser *P);
 995 void PSI_ParserParse(PSI_Parser *P, PSI_Token *T);
 996 void PSI_ParserDtor(PSI_Parser *P);
 997 void PSI_ParserFree(PSI_Parser **P);
 998
 999 #endif