tools/widl/header.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library 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 GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #ifdef HAVE_UNISTD_H
  27 # include <unistd.h>
  28 #endif
  29 #include <string.h>
  30 #include <assert.h>
  31 #include <ctype.h>
  32 #include <signal.h>
  33
  34 #include "windef.h"
  35 #include "widl.h"
  36 #include "utils.h"
  37 #include "parser.h"
  38 #include "header.h"
  39
  40 static int indentation = 0;
  41
  42 static void indent(FILE *h, int delta)
  43 {
  44   int c;
  45   if (delta < 0) indentation += delta;
  46   for (c=0; c<indentation; c++) fprintf(h, "    ");
  47   if (delta > 0) indentation += delta;
  48 }
  49
  50 int is_ptrchain_attr(const var_t *var, enum attr_type t)
  51 {
  52     if (is_attr(var->attrs, t))
  53         return 1;
  54     else
  55     {
  56         type_t *type = var->type;
  57         for (;;)
  58         {
  59             if (is_attr(type->attrs, t))
  60                 return 1;
  61             else if (type->kind == TKIND_ALIAS)
  62                 type = type->orig;
  63             else if (is_ptr(type))
  64                 type = type->ref;
  65             else return 0;
  66         }
  67     }
  68 }
  69
  70 int is_attr(const attr_list_t *list, enum attr_type t)
  71 {
  72     const attr_t *attr;
  73     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  74         if (attr->type == t) return 1;
  75     return 0;
  76 }
  77
  78 void *get_attrp(const attr_list_t *list, enum attr_type t)
  79 {
  80     const attr_t *attr;
  81     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  82         if (attr->type == t) return attr->u.pval;
  83     return NULL;
  84 }
  85
  86 unsigned long get_attrv(const attr_list_t *list, enum attr_type t)
  87 {
  88     const attr_t *attr;
  89     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  90         if (attr->type == t) return attr->u.ival;
  91     return 0;
  92 }
  93
  94 int is_void(const type_t *t)
  95 {
  96   if (!t->type && !t->ref) return 1;
  97   return 0;
  98 }
  99
 100 int is_conformant_array(const type_t *t)
 101 {
 102     return t->type == RPC_FC_CARRAY || t->type == RPC_FC_CVARRAY;
 103 }
 104
 105 void write_guid(FILE *f, const char *guid_prefix, const char *name, const UUID *uuid)
 106 {
 107   if (!uuid) return;
 108   fprintf(f, "DEFINE_GUID(%s_%s, 0x%08x, 0x%04x, 0x%04x, 0x%02x,0x%02x, 0x%02x,"
 109         "0x%02x,0x%02x,0x%02x,0x%02x,0x%02x);\n",
 110         guid_prefix, name, uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0],
 111         uuid->Data4[1], uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5],
 112         uuid->Data4[6], uuid->Data4[7]);
 113 }
 114
 115 void write_name(FILE *h, const var_t *v)
 116 {
 117   if (is_attr( v->attrs, ATTR_PROPGET ))
 118     fprintf(h, "get_" );
 119   else if (is_attr( v->attrs, ATTR_PROPPUT ))
 120     fprintf(h, "put_" );
 121   else if (is_attr( v->attrs, ATTR_PROPPUTREF ))
 122     fprintf(h, "putref_" );
 123   fprintf(h, "%s", v->name);
 124 }
 125
 126 void write_prefix_name(FILE *h, const char *prefix, const var_t *v)
 127 {
 128   fprintf(h, "%s", prefix);
 129   write_name(h, v);
 130 }
 131
 132 static void write_field(FILE *h, var_t *v)
 133 {
 134   if (!v) return;
 135   if (v->type) {
 136     const char *name = v->name;
 137     if (name == NULL) {
 138       switch (v->type->type) {
 139       case RPC_FC_STRUCT:
 140       case RPC_FC_CVSTRUCT:
 141       case RPC_FC_CPSTRUCT:
 142       case RPC_FC_CSTRUCT:
 143       case RPC_FC_PSTRUCT:
 144       case RPC_FC_BOGUS_STRUCT:
 145       case RPC_FC_ENCAPSULATED_UNION:
 146         name = "DUMMYSTRUCTNAME";
 147         break;
 148       case RPC_FC_NON_ENCAPSULATED_UNION:
 149         name = "DUMMYUNIONNAME";
 150         break;
 151       default:
 152         /* ? */
 153         break;
 154       }
 155     }
 156     indent(h, 0);
 157     write_type(h, v->type, TRUE, "%s", name);
 158     fprintf(h, ";\n");
 159   }
 160 }
 161
 162 static void write_fields(FILE *h, var_list_t *fields)
 163 {
 164     var_t *v;
 165     if (!fields) return;
 166     LIST_FOR_EACH_ENTRY( v, fields, var_t, entry ) write_field(h, v);
 167 }
 168
 169 static void write_enums(FILE *h, var_list_t *enums)
 170 {
 171   var_t *v;
 172   if (!enums) return;
 173   LIST_FOR_EACH_ENTRY( v, enums, var_t, entry )
 174   {
 175     if (v->name) {
 176       indent(h, 0);
 177       write_name(h, v);
 178       if (v->eval) {
 179         fprintf(h, " = ");
 180         write_expr(h, v->eval, 0);
 181       }
 182     }
 183     if (list_next( enums, &v->entry )) fprintf(h, ",\n");
 184   }
 185   fprintf(h, "\n");
 186 }
 187
 188 int needs_space_after(type_t *t)
 189 {
 190   return (t->kind == TKIND_ALIAS
 191           || (!is_ptr(t) && (!is_conformant_array(t) || t->declarray)));
 192 }
 193
 194 void write_type_left(FILE *h, type_t *t)
 195 {
 196   if (t->is_const) fprintf(h, "const ");
 197
 198   if (t->kind == TKIND_ALIAS) fprintf(h, "%s", t->name);
 199   else if (t->declarray) write_type_left(h, t->ref);
 200   else {
 201     if (t->sign > 0) fprintf(h, "signed ");
 202     else if (t->sign < 0) fprintf(h, "unsigned ");
 203     switch (t->type) {
 204       case RPC_FC_ENUM16:
 205       case RPC_FC_ENUM32:
 206         if (t->defined && !t->written && !t->ignore) {
 207           if (t->name) fprintf(h, "enum %s {\n", t->name);
 208           else fprintf(h, "enum {\n");
 209           t->written = TRUE;
 210           indentation++;
 211           write_enums(h, t->fields);
 212           indent(h, -1);
 213           fprintf(h, "}");
 214         }
 215         else fprintf(h, "enum %s", t->name);
 216         break;
 217       case RPC_FC_STRUCT:
 218       case RPC_FC_CVSTRUCT:
 219       case RPC_FC_CPSTRUCT:
 220       case RPC_FC_CSTRUCT:
 221       case RPC_FC_PSTRUCT:
 222       case RPC_FC_BOGUS_STRUCT:
 223       case RPC_FC_ENCAPSULATED_UNION:
 224         if (t->defined && !t->written && !t->ignore) {
 225           if (t->name) fprintf(h, "struct %s {\n", t->name);
 226           else fprintf(h, "struct {\n");
 227           t->written = TRUE;
 228           indentation++;
 229           write_fields(h, t->fields);
 230           indent(h, -1);
 231           fprintf(h, "}");
 232         }
 233         else fprintf(h, "struct %s", t->name);
 234         break;
 235       case RPC_FC_NON_ENCAPSULATED_UNION:
 236         if (t->defined && !t->written && !t->ignore) {
 237           if (t->name) fprintf(h, "union %s {\n", t->name);
 238           else fprintf(h, "union {\n");
 239           t->written = TRUE;
 240           indentation++;
 241           write_fields(h, t->fields);
 242           indent(h, -1);
 243           fprintf(h, "}");
 244         }
 245         else fprintf(h, "union %s", t->name);
 246         break;
 247       case RPC_FC_RP:
 248       case RPC_FC_UP:
 249       case RPC_FC_FP:
 250       case RPC_FC_OP:
 251       case RPC_FC_CARRAY:
 252       case RPC_FC_CVARRAY:
 253         write_type_left(h, t->ref);
 254         fprintf(h, "%s*", needs_space_after(t->ref) ? " " : "");
 255         break;
 256       default:
 257         fprintf(h, "%s", t->name);
 258     }
 259   }
 260 }
 261
 262 void write_type_right(FILE *h, type_t *t, int is_field)
 263 {
 264   if (t->declarray) {
 265     if (is_conformant_array(t)) {
 266       fprintf(h, "[%s]", is_field ? "1" : "");
 267       t = t->ref;
 268     }
 269     for ( ; t->declarray; t = t->ref)
 270       fprintf(h, "[%lu]", t->dim);
 271   }
 272 }
 273
 274 void write_type(FILE *h, type_t *t, int is_field, const char *fmt, ...)
 275 {
 276   write_type_left(h, t);
 277   if (fmt) {
 278     va_list args;
 279     va_start(args, fmt);
 280     if (needs_space_after(t))
 281       fprintf(h, " ");
 282     vfprintf(h, fmt, args);
 283     va_end(args);
 284   }
 285   write_type_right(h, t, is_field);
 286 }
 287
 288 user_type_list_t user_type_list = LIST_INIT(user_type_list);
 289
 290 static int user_type_registered(const char *name)
 291 {
 292   user_type_t *ut;
 293   LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
 294     if (!strcmp(name, ut->name))
 295       return 1;
 296   return 0;
 297 }
 298
 299 void check_for_user_types(const var_list_t *list)
 300 {
 301   const var_t *v;
 302
 303   if (!list) return;
 304   LIST_FOR_EACH_ENTRY( v, list, const var_t, entry )
 305   {
 306     type_t *type;
 307     for (type = v->type; type; type = type->kind == TKIND_ALIAS ? type->orig : type->ref) {
 308       const char *name = type->name;
 309       if (type->user_types_registered) continue;
 310       type->user_types_registered = 1;
 311       if (is_attr(type->attrs, ATTR_WIREMARSHAL)) {
 312         if (!user_type_registered(name))
 313         {
 314           user_type_t *ut = xmalloc(sizeof *ut);
 315           ut->name = xstrdup(name);
 316           list_add_tail(&user_type_list, &ut->entry);
 317         }
 318         /* don't carry on parsing fields within this type as we are already
 319          * using a wire marshaled type */
 320         break;
 321       }
 322       else
 323       {
 324         check_for_user_types(type->fields);
 325       }
 326     }
 327   }
 328 }
 329
 330 void write_user_types(void)
 331 {
 332   user_type_t *ut;
 333   LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
 334   {
 335     const char *name = ut->name;
 336     fprintf(header, "ULONG           __RPC_USER %s_UserSize     (ULONG *, ULONG, %s *);\n", name, name);
 337     fprintf(header, "unsigned char * __RPC_USER %s_UserMarshal  (ULONG *, unsigned char *, %s *);\n", name, name);
 338     fprintf(header, "unsigned char * __RPC_USER %s_UserUnmarshal(ULONG *, unsigned char *, %s *);\n", name, name);
 339     fprintf(header, "void            __RPC_USER %s_UserFree     (ULONG *, %s *);\n", name, name);
 340   }
 341 }
 342
 343 void write_typedef(type_t *type)
 344 {
 345   fprintf(header, "typedef ");
 346   write_type(header, type->orig, FALSE, "%s", type->name);
 347   fprintf(header, ";\n");
 348 }
 349
 350 void write_expr(FILE *h, const expr_t *e, int brackets)
 351 {
 352   switch (e->type) {
 353   case EXPR_VOID:
 354     break;
 355   case EXPR_NUM:
 356     fprintf(h, "%lu", e->u.lval);
 357     break;
 358   case EXPR_HEXNUM:
 359     fprintf(h, "0x%lx", e->u.lval);
 360     break;
 361   case EXPR_TRUEFALSE:
 362     if (e->u.lval == 0)
 363       fprintf(h, "FALSE");
 364     else
 365       fprintf(h, "TRUE");
 366     break;
 367   case EXPR_IDENTIFIER:
 368     fprintf(h, "%s", e->u.sval);
 369     break;
 370   case EXPR_NEG:
 371     fprintf(h, "-");
 372     write_expr(h, e->ref, 1);
 373     break;
 374   case EXPR_NOT:
 375     fprintf(h, "~");
 376     write_expr(h, e->ref, 1);
 377     break;
 378   case EXPR_PPTR:
 379     fprintf(h, "*");
 380     write_expr(h, e->ref, 1);
 381     break;
 382   case EXPR_CAST:
 383     fprintf(h, "(");
 384     write_type(h, e->u.tref, FALSE, NULL);
 385     fprintf(h, ")");
 386     write_expr(h, e->ref, 1);
 387     break;
 388   case EXPR_SIZEOF:
 389     fprintf(h, "sizeof(");
 390     write_type(h, e->u.tref, FALSE, NULL);
 391     fprintf(h, ")");
 392     break;
 393   case EXPR_SHL:
 394   case EXPR_SHR:
 395   case EXPR_MUL:
 396   case EXPR_DIV:
 397   case EXPR_ADD:
 398   case EXPR_SUB:
 399   case EXPR_AND:
 400   case EXPR_OR:
 401     if (brackets) fprintf(h, "(");
 402     write_expr(h, e->ref, 1);
 403     switch (e->type) {
 404     case EXPR_SHL: fprintf(h, " << "); break;
 405     case EXPR_SHR: fprintf(h, " >> "); break;
 406     case EXPR_MUL: fprintf(h, " * "); break;
 407     case EXPR_DIV: fprintf(h, " / "); break;
 408     case EXPR_ADD: fprintf(h, " + "); break;
 409     case EXPR_SUB: fprintf(h, " - "); break;
 410     case EXPR_AND: fprintf(h, " & "); break;
 411     case EXPR_OR:  fprintf(h, " | "); break;
 412     default: break;
 413     }
 414     write_expr(h, e->u.ext, 1);
 415     if (brackets) fprintf(h, ")");
 416     break;
 417   case EXPR_COND:
 418     if (brackets) fprintf(h, "(");
 419     write_expr(h, e->ref, 1);
 420     fprintf(h, " ? ");
 421     write_expr(h, e->u.ext, 1);
 422     fprintf(h, " : ");
 423     write_expr(h, e->ext2, 1);
 424     if (brackets) fprintf(h, ")");
 425     break;
 426   }
 427 }
 428
 429 void write_constdef(const var_t *v)
 430 {
 431   fprintf(header, "#define %s (", v->name);
 432   write_expr(header, v->eval, 0);
 433   fprintf(header, ")\n\n");
 434 }
 435
 436 void write_externdef(const var_t *v)
 437 {
 438   fprintf(header, "extern const ");
 439   write_type(header, v->type, FALSE, "%s", v->name);
 440   fprintf(header, ";\n\n");
 441 }
 442
 443 void write_library(const char *name, const attr_list_t *attr)
 444 {
 445   const UUID *uuid = get_attrp(attr, ATTR_UUID);
 446   fprintf(header, "\n");
 447   write_guid(header, "LIBID", name, uuid);
 448   fprintf(header, "\n");
 449 }
 450
 451
 452 const var_t* get_explicit_handle_var(const func_t* func)
 453 {
 454     const var_t* var;
 455
 456     if (!func->args)
 457         return NULL;
 458
 459     LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
 460         if (var->type->type == RPC_FC_BIND_PRIMITIVE)
 461             return var;
 462
 463     return NULL;
 464 }
 465
 466 int has_out_arg_or_return(const func_t *func)
 467 {
 468     const var_t *var;
 469
 470     if (!is_void(func->def->type))
 471         return 1;
 472
 473     if (!func->args)
 474         return 0;
 475
 476     LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
 477         if (is_attr(var->attrs, ATTR_OUT))
 478             return 1;
 479
 480     return 0;
 481 }
 482
 483
 484 /********** INTERFACES **********/
 485
 486 int is_object(const attr_list_t *list)
 487 {
 488     const attr_t *attr;
 489     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
 490         if (attr->type == ATTR_OBJECT || attr->type == ATTR_ODL) return 1;
 491     return 0;
 492 }
 493
 494 int is_local(const attr_list_t *a)
 495 {
 496   return is_attr(a, ATTR_LOCAL);
 497 }
 498
 499 const var_t *is_callas(const attr_list_t *a)
 500 {
 501   return get_attrp(a, ATTR_CALLAS);
 502 }
 503
 504 static void write_method_macro(const type_t *iface, const char *name)
 505 {
 506   const func_t *cur;
 507
 508   if (iface->ref) write_method_macro(iface->ref, name);
 509
 510   if (!iface->funcs) return;
 511
 512   fprintf(header, "/*** %s methods ***/\n", iface->name);
 513   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 514   {
 515     var_t *def = cur->def;
 516     if (!is_callas(def->attrs)) {
 517       const var_t *arg;
 518       int argc = 0;
 519       int c;
 520
 521       if (cur->args) LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry ) argc++;
 522
 523       fprintf(header, "#define %s_", name);
 524       write_name(header,def);
 525       fprintf(header, "(p");
 526       for (c=0; c<argc; c++)
 527         fprintf(header, ",%c", c+'a');
 528       fprintf(header, ") ");
 529
 530       fprintf(header, "(p)->lpVtbl->");
 531       write_name(header, def);
 532       fprintf(header, "(p");
 533       for (c=0; c<argc; c++)
 534         fprintf(header, ",%c", c+'a');
 535       fprintf(header, ")\n");
 536     }
 537   }
 538 }
 539
 540 void write_args(FILE *h, const var_list_t *args, const char *name, int method, int do_indent)
 541 {
 542   const var_t *arg;
 543   int count = 0;
 544
 545   if (do_indent)
 546   {
 547       indentation++;
 548       indent(h, 0);
 549   }
 550   if (method == 1) {
 551     fprintf(h, "%s* This", name);
 552     count++;
 553   }
 554   if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry ) {
 555     if (count) {
 556         if (do_indent)
 557         {
 558             fprintf(h, ",\n");
 559             indent(h, 0);
 560         }
 561         else fprintf(h, ",");
 562     }
 563     if (arg->args)
 564     {
 565       write_type_left(h, arg->type);
 566       fprintf(h, " (STDMETHODCALLTYPE *");
 567       write_name(h,arg);
 568       fprintf(h, ")(");
 569       write_args(h, arg->args, NULL, 0, FALSE);
 570       fprintf(h, ")");
 571     }
 572     else
 573       write_type(h, arg->type, FALSE, "%s", arg->name);
 574     count++;
 575   }
 576   if (do_indent) indentation--;
 577 }
 578
 579 static void write_cpp_method_def(const type_t *iface)
 580 {
 581   const func_t *cur;
 582
 583   if (!iface->funcs) return;
 584
 585   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 586   {
 587     var_t *def = cur->def;
 588     if (!is_callas(def->attrs)) {
 589       indent(header, 0);
 590       fprintf(header, "virtual ");
 591       write_type_left(header, def->type);
 592       fprintf(header, " STDMETHODCALLTYPE ");
 593       write_name(header, def);
 594       fprintf(header, "(\n");
 595       write_args(header, cur->args, iface->name, 2, TRUE);
 596       fprintf(header, ") = 0;\n");
 597       fprintf(header, "\n");
 598     }
 599   }
 600 }
 601
 602 static void do_write_c_method_def(const type_t *iface, const char *name)
 603 {
 604   const func_t *cur;
 605
 606   if (iface->ref) do_write_c_method_def(iface->ref, name);
 607
 608   if (!iface->funcs) return;
 609   indent(header, 0);
 610   fprintf(header, "/*** %s methods ***/\n", iface->name);
 611   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 612   {
 613     const var_t *def = cur->def;
 614     if (!is_callas(def->attrs)) {
 615       indent(header, 0);
 616       write_type_left(header, def->type);
 617       fprintf(header, " (STDMETHODCALLTYPE *");
 618       write_name(header, def);
 619       fprintf(header, ")(\n");
 620       write_args(header, cur->args, name, 1, TRUE);
 621       fprintf(header, ");\n");
 622       fprintf(header, "\n");
 623     }
 624   }
 625 }
 626
 627 static void write_c_method_def(const type_t *iface)
 628 {
 629   do_write_c_method_def(iface, iface->name);
 630 }
 631
 632 static void write_c_disp_method_def(const type_t *iface)
 633 {
 634   do_write_c_method_def(iface->ref, iface->name);
 635 }
 636
 637 static void write_method_proto(const type_t *iface)
 638 {
 639   const func_t *cur;
 640
 641   if (!iface->funcs) return;
 642   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 643   {
 644     const var_t *def = cur->def;
 645     const var_t *cas = is_callas(def->attrs);
 646
 647     if (!is_local(def->attrs)) {
 648       /* proxy prototype */
 649       write_type_left(header, def->type);
 650       fprintf(header, " CALLBACK %s_", iface->name);
 651       write_name(header, def);
 652       fprintf(header, "_Proxy(\n");
 653       write_args(header, cur->args, iface->name, 1, TRUE);
 654       fprintf(header, ");\n");
 655       /* stub prototype */
 656       fprintf(header, "void __RPC_STUB %s_", iface->name);
 657       write_name(header,def);
 658       fprintf(header, "_Stub(\n");
 659       fprintf(header, "    IRpcStubBuffer* This,\n");
 660       fprintf(header, "    IRpcChannelBuffer* pRpcChannelBuffer,\n");
 661       fprintf(header, "    PRPC_MESSAGE pRpcMessage,\n");
 662       fprintf(header, "    DWORD* pdwStubPhase);\n");
 663     }
 664     if (cas) {
 665       const func_t *m;
 666       LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 667           if (!strcmp(m->def->name, cas->name)) break;
 668       if (&m->entry != iface->funcs) {
 669         const var_t *mdef = m->def;
 670         /* proxy prototype - use local prototype */
 671         write_type_left(header, mdef->type);
 672         fprintf(header, " CALLBACK %s_", iface->name);
 673         write_name(header, mdef);
 674         fprintf(header, "_Proxy(\n");
 675         write_args(header, m->args, iface->name, 1, TRUE);
 676         fprintf(header, ");\n");
 677         /* stub prototype - use remotable prototype */
 678         write_type_left(header, def->type);
 679         fprintf(header, " __RPC_STUB %s_", iface->name);
 680         write_name(header, mdef);
 681         fprintf(header, "_Stub(\n");
 682         write_args(header, cur->args, iface->name, 1, TRUE);
 683         fprintf(header, ");\n");
 684       }
 685       else {
 686         parser_warning("invalid call_as attribute (%s -> %s)\n", def->name, cas->name);
 687       }
 688     }
 689   }
 690 }
 691
 692 static void write_function_proto(const type_t *iface, const func_t *fun, const char *prefix)
 693 {
 694   var_t *def = fun->def;
 695
 696   /* FIXME: do we need to handle call_as? */
 697   write_type_left(header, def->type);
 698   fprintf(header, " ");
 699   write_prefix_name(header, prefix, def);
 700   fprintf(header, "(\n");
 701   if (fun->args)
 702     write_args(header, fun->args, iface->name, 0, TRUE);
 703   else
 704     fprintf(header, "    void");
 705   fprintf(header, ");\n");
 706 }
 707
 708 static void write_function_protos(const type_t *iface)
 709 {
 710   const char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
 711   int explicit_handle = is_attr(iface->attrs, ATTR_EXPLICIT_HANDLE);
 712   const var_t* explicit_handle_var;
 713   const func_t *cur;
 714   int prefixes_differ = strcmp(prefix_client, prefix_server);
 715
 716   if (!iface->funcs) return;
 717   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 718   {
 719     var_t *def = cur->def;
 720
 721     /* check for a defined binding handle */
 722     explicit_handle_var = get_explicit_handle_var(cur);
 723     if (explicit_handle) {
 724       if (!explicit_handle_var) {
 725         error("%s() does not define an explicit binding handle!\n", def->name);
 726         return;
 727       }
 728     } else if (implicit_handle) {
 729       if (explicit_handle_var) {
 730         error("%s() must not define a binding handle!\n", def->name);
 731         return;
 732       }
 733     }
 734
 735     if (prefixes_differ) {
 736       fprintf(header, "/* client prototype */\n");
 737       write_function_proto(iface, cur, prefix_client);
 738       fprintf(header, "/* server prototype */\n");
 739     }
 740     write_function_proto(iface, cur, prefix_server);
 741   }
 742 }
 743
 744 void write_forward(type_t *iface)
 745 {
 746   /* C/C++ forwards should only be written for object interfaces, so if we
 747    * have a full definition we only write one if we find [object] among the
 748    * attributes - however, if we don't have a full definition at this point
 749    * (i.e. this is an IDL forward), then we also assume that it is an object
 750    * interface, since non-object interfaces shouldn't need forwards */
 751   if ((!iface->defined || is_object(iface->attrs) || is_attr(iface->attrs, ATTR_DISPINTERFACE))
 752         && !iface->written) {
 753     fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", iface->name);
 754     fprintf(header, "#define __%s_FWD_DEFINED__\n", iface->name);
 755     fprintf(header, "typedef interface %s %s;\n", iface->name, iface->name);
 756     fprintf(header, "#endif\n\n" );
 757     iface->written = TRUE;
 758   }
 759 }
 760
 761 static void write_iface_guid(const type_t *iface)
 762 {
 763   const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 764   write_guid(header, "IID", iface->name, uuid);
 765 }
 766
 767 static void write_dispiface_guid(const type_t *iface)
 768 {
 769   const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 770   write_guid(header, "DIID", iface->name, uuid);
 771 }
 772
 773 static void write_coclass_guid(type_t *cocl)
 774 {
 775   const UUID *uuid = get_attrp(cocl->attrs, ATTR_UUID);
 776   write_guid(header, "CLSID", cocl->name, uuid);
 777 }
 778
 779 static void write_com_interface(type_t *iface)
 780 {
 781   if (!iface->funcs && !iface->ref) {
 782     parser_warning("%s has no methods", iface->name);
 783     return;
 784   }
 785
 786   fprintf(header, "/*****************************************************************************\n");
 787   fprintf(header, " * %s interface\n", iface->name);
 788   fprintf(header, " */\n");
 789   fprintf(header,"#ifndef __%s_INTERFACE_DEFINED__\n", iface->name);
 790   fprintf(header,"#define __%s_INTERFACE_DEFINED__\n\n", iface->name);
 791   write_iface_guid(iface);
 792   write_forward(iface);
 793   /* C++ interface */
 794   fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
 795   if (iface->ref)
 796   {
 797       fprintf(header, "interface %s : public %s\n", iface->name, iface->ref->name);
 798       fprintf(header, "{\n");
 799       indentation++;
 800       write_cpp_method_def(iface);
 801       indentation--;
 802       fprintf(header, "};\n");
 803   }
 804   else
 805   {
 806       fprintf(header, "interface %s\n", iface->name);
 807       fprintf(header, "{\n");
 808       fprintf(header, "    BEGIN_INTERFACE\n");
 809       fprintf(header, "\n");
 810       indentation++;
 811       write_cpp_method_def(iface);
 812       indentation--;
 813       fprintf(header, "    END_INTERFACE\n");
 814       fprintf(header, "};\n");
 815   }
 816   fprintf(header, "#else\n");
 817   /* C interface */
 818   fprintf(header, "typedef struct %sVtbl {\n", iface->name);
 819   indentation++;
 820   fprintf(header, "    BEGIN_INTERFACE\n");
 821   fprintf(header, "\n");
 822   write_c_method_def(iface);
 823   indentation--;
 824   fprintf(header, "    END_INTERFACE\n");
 825   fprintf(header, "} %sVtbl;\n", iface->name);
 826   fprintf(header, "interface %s {\n", iface->name);
 827   fprintf(header, "    CONST_VTBL %sVtbl* lpVtbl;\n", iface->name);
 828   fprintf(header, "};\n");
 829   fprintf(header, "\n");
 830   fprintf(header, "#ifdef COBJMACROS\n");
 831   write_method_macro(iface, iface->name);
 832   fprintf(header, "#endif\n");
 833   fprintf(header, "\n");
 834   fprintf(header, "#endif\n");
 835   fprintf(header, "\n");
 836   write_method_proto(iface);
 837   fprintf(header,"\n#endif  /* __%s_INTERFACE_DEFINED__ */\n\n", iface->name);
 838 }
 839
 840 static void write_rpc_interface(const type_t *iface)
 841 {
 842   unsigned long ver = get_attrv(iface->attrs, ATTR_VERSION);
 843   const char *var = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
 844   static int allocate_written = 0;
 845
 846   if (!allocate_written)
 847   {
 848     allocate_written = 1;
 849     fprintf(header, "void * __RPC_USER MIDL_user_allocate(size_t);\n");
 850     fprintf(header, "void __RPC_USER MIDL_user_free(void *);\n\n");
 851   }
 852
 853   fprintf(header, "/*****************************************************************************\n");
 854   fprintf(header, " * %s interface (v%d.%d)\n", iface->name, LOWORD(ver), HIWORD(ver));
 855   fprintf(header, " */\n");
 856   fprintf(header,"#ifndef __%s_INTERFACE_DEFINED__\n", iface->name);
 857   fprintf(header,"#define __%s_INTERFACE_DEFINED__\n\n", iface->name);
 858   if (iface->funcs)
 859   {
 860     write_iface_guid(iface);
 861     if (var) fprintf(header, "extern handle_t %s;\n", var);
 862     if (old_names)
 863     {
 864         fprintf(header, "extern RPC_IF_HANDLE %s%s_ClientIfHandle;\n", prefix_client, iface->name);
 865         fprintf(header, "extern RPC_IF_HANDLE %s%s_ServerIfHandle;\n", prefix_server, iface->name);
 866     }
 867     else
 868     {
 869         fprintf(header, "extern RPC_IF_HANDLE %s%s_v%d_%d_c_ifspec;\n",
 870                 prefix_client, iface->name, LOWORD(ver), HIWORD(ver));
 871         fprintf(header, "extern RPC_IF_HANDLE %s%s_v%d_%d_s_ifspec;\n",
 872                 prefix_server, iface->name, LOWORD(ver), HIWORD(ver));
 873     }
 874     write_function_protos(iface);
 875   }
 876   fprintf(header,"\n#endif  /* __%s_INTERFACE_DEFINED__ */\n\n", iface->name);
 877
 878   /* FIXME: server/client code */
 879 }
 880
 881 void write_interface(type_t *iface)
 882 {
 883   if (is_object(iface->attrs))
 884     write_com_interface(iface);
 885   else
 886     write_rpc_interface(iface);
 887 }
 888
 889 void write_dispinterface(type_t *iface)
 890 {
 891   fprintf(header, "/*****************************************************************************\n");
 892   fprintf(header, " * %s dispinterface\n", iface->name);
 893   fprintf(header, " */\n");
 894   fprintf(header,"#ifndef __%s_DISPINTERFACE_DEFINED__\n", iface->name);
 895   fprintf(header,"#define __%s_DISPINTERFACE_DEFINED__\n\n", iface->name);
 896   write_dispiface_guid(iface);
 897   write_forward(iface);
 898   /* C++ interface */
 899   fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
 900   fprintf(header, "interface %s : public %s\n", iface->name, iface->ref->name);
 901   fprintf(header, "{\n");
 902   fprintf(header, "};\n");
 903   fprintf(header, "#else\n");
 904   /* C interface */
 905   fprintf(header, "typedef struct %sVtbl {\n", iface->name);
 906   indentation++;
 907   fprintf(header, "    BEGIN_INTERFACE\n");
 908   fprintf(header, "\n");
 909   write_c_disp_method_def(iface);
 910   indentation--;
 911   fprintf(header, "    END_INTERFACE\n");
 912   fprintf(header, "} %sVtbl;\n", iface->name);
 913   fprintf(header, "interface %s {\n", iface->name);
 914   fprintf(header, "    CONST_VTBL %sVtbl* lpVtbl;\n", iface->name);
 915   fprintf(header, "};\n");
 916   fprintf(header, "\n");
 917   fprintf(header, "#ifdef COBJMACROS\n");
 918   write_method_macro(iface->ref, iface->name);
 919   fprintf(header, "#endif\n");
 920   fprintf(header, "\n");
 921   fprintf(header, "#endif\n");
 922   fprintf(header, "\n");
 923   fprintf(header,"#endif  /* __%s_DISPINTERFACE_DEFINED__ */\n\n", iface->name);
 924 }
 925
 926 void write_coclass(type_t *cocl)
 927 {
 928   fprintf(header, "/*****************************************************************************\n");
 929   fprintf(header, " * %s coclass\n", cocl->name);
 930   fprintf(header, " */\n\n");
 931   write_coclass_guid(cocl);
 932   fprintf(header, "\n");
 933 }
 934
 935 void write_coclass_forward(type_t *cocl)
 936 {
 937   fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", cocl->name);
 938   fprintf(header, "#define __%s_FWD_DEFINED__\n", cocl->name);
 939   fprintf(header, "typedef struct %s %s;\n", cocl->name, cocl->name);
 940   fprintf(header, "#endif /* defined __%s_FWD_DEFINED__ */\n\n", cocl->name );
 941 }