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 <stdio.h>
  24 #include <stdlib.h>
  25 #ifdef HAVE_UNISTD_H
  26 # include <unistd.h>
  27 #endif
  28 #include <string.h>
  29 #include <assert.h>
  30 #include <ctype.h>
  31 #include <signal.h>
  32
  33 #include "windef.h"
  34 #include "widl.h"
  35 #include "utils.h"
  36 #include "parser.h"
  37 #include "header.h"
  38
  39 static int indentation = 0;
  40
  41 static void indent(FILE *h, int delta)
  42 {
  43   int c;
  44   if (delta < 0) indentation += delta;
  45   for (c=0; c<indentation; c++) fprintf(h, "    ");
  46   if (delta > 0) indentation += delta;
  47 }
  48
  49 int is_attr(const attr_list_t *list, enum attr_type t)
  50 {
  51     const attr_t *attr;
  52     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  53         if (attr->type == t) return 1;
  54     return 0;
  55 }
  56
  57 void *get_attrp(const attr_list_t *list, enum attr_type t)
  58 {
  59     const attr_t *attr;
  60     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  61         if (attr->type == t) return attr->u.pval;
  62     return NULL;
  63 }
  64
  65 unsigned long get_attrv(const attr_list_t *list, enum attr_type t)
  66 {
  67     const attr_t *attr;
  68     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  69         if (attr->type == t) return attr->u.ival;
  70     return 0;
  71 }
  72
  73 int is_void(const type_t *t, const var_t *v)
  74 {
  75   if (v && v->ptr_level) return 0;
  76   if (!t->type && !t->ref) return 1;
  77   return 0;
  78 }
  79
  80 int is_conformant_array( const array_dims_t *array )
  81 {
  82     expr_t *dim;
  83     if (!array) return 0;
  84     dim = LIST_ENTRY( list_head( array ), expr_t, entry );
  85     return !dim->is_const;
  86 }
  87
  88 int is_non_void(const expr_list_t *list)
  89 {
  90     const expr_t *expr;
  91
  92     if (list)
  93         LIST_FOR_EACH_ENTRY( expr, list, const expr_t, entry )
  94             if (expr->type != EXPR_VOID) return 1;
  95     return 0;
  96 }
  97
  98 void write_guid(FILE *f, const char *guid_prefix, const char *name, const UUID *uuid)
  99 {
 100   if (!uuid) return;
 101   fprintf(f, "DEFINE_GUID(%s_%s, 0x%08x, 0x%04x, 0x%04x, 0x%02x,0x%02x, 0x%02x,"
 102         "0x%02x,0x%02x,0x%02x,0x%02x,0x%02x);\n",
 103         guid_prefix, name, uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0],
 104         uuid->Data4[1], uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5],
 105         uuid->Data4[6], uuid->Data4[7]);
 106 }
 107
 108 static void write_pident(FILE *h, const var_t *v)
 109 {
 110   int c;
 111   for (c=0; c<v->ptr_level; c++) {
 112     fprintf(h, "*");
 113   }
 114   if (v->name) fprintf(h, "%s", v->name);
 115 }
 116
 117 void write_name(FILE *h, const var_t *v)
 118 {
 119   if (is_attr( v->attrs, ATTR_PROPGET ))
 120     fprintf(h, "get_" );
 121   else if (is_attr( v->attrs, ATTR_PROPPUT ))
 122     fprintf(h, "put_" );
 123   else if (is_attr( v->attrs, ATTR_PROPPUTREF ))
 124     fprintf(h, "putref_" );
 125   fprintf(h, "%s", v->name);
 126 }
 127
 128 const char* get_name(const var_t *v)
 129 {
 130   return v->name;
 131 }
 132
 133 void write_array(FILE *h, array_dims_t *dims, int field)
 134 {
 135   expr_t *v;
 136
 137   if (!dims) return;
 138   fprintf(h, "[");
 139   LIST_FOR_EACH_ENTRY( v, dims, expr_t, entry )
 140   {
 141     if (v->is_const)
 142       fprintf(h, "%ld", v->cval); /* statically sized array */
 143     else
 144       if (field) fprintf(h, "1"); /* dynamically sized array */
 145     if (list_next( dims, &v->entry ))
 146       fprintf(h, ", ");
 147   }
 148   fprintf(h, "]");
 149 }
 150
 151 static void write_field(FILE *h, var_t *v)
 152 {
 153   if (!v) return;
 154   if (v->type) {
 155     indent(h, 0);
 156     write_type(h, v->type, NULL, v->tname);
 157     if (get_name(v)) {
 158       fprintf(h, " ");
 159       write_pident(h, v);
 160     }
 161     else {
 162       /* not all C/C++ compilers support anonymous structs and unions */
 163       switch (v->type->type) {
 164       case RPC_FC_STRUCT:
 165       case RPC_FC_CVSTRUCT:
 166       case RPC_FC_CPSTRUCT:
 167       case RPC_FC_CSTRUCT:
 168       case RPC_FC_PSTRUCT:
 169       case RPC_FC_BOGUS_STRUCT:
 170       case RPC_FC_ENCAPSULATED_UNION:
 171         fprintf(h, " DUMMYSTRUCTNAME");
 172         break;
 173       case RPC_FC_NON_ENCAPSULATED_UNION:
 174         fprintf(h, " DUMMYUNIONNAME");
 175         break;
 176       default:
 177         /* ? */
 178         break;
 179       }
 180     }
 181     write_array(h, v->array, 1);
 182     fprintf(h, ";\n");
 183   }
 184 }
 185
 186 static void write_fields(FILE *h, var_list_t *fields)
 187 {
 188     var_t *v;
 189     if (!fields) return;
 190     LIST_FOR_EACH_ENTRY( v, fields, var_t, entry ) write_field(h, v);
 191 }
 192
 193 static void write_enums(FILE *h, var_list_t *enums)
 194 {
 195   var_t *v;
 196   if (!enums) return;
 197   LIST_FOR_EACH_ENTRY( v, enums, var_t, entry )
 198   {
 199     if (get_name(v)) {
 200       indent(h, 0);
 201       write_name(h, v);
 202       if (v->eval) {
 203         fprintf(h, " = ");
 204         write_expr(h, v->eval, 0);
 205       }
 206     }
 207     if (list_next( enums, &v->entry )) fprintf(h, ",\n");
 208   }
 209   fprintf(h, "\n");
 210 }
 211
 212 int needs_space_after(type_t *t)
 213 {
 214   return t->kind == TKIND_ALIAS || ! is_ptr(t);
 215 }
 216
 217 void write_type(FILE *h, type_t *t, const var_t *v, const char *n)
 218 {
 219   int c;
 220
 221   if (t->is_const) fprintf(h, "const ");
 222
 223   if (n) fprintf(h, "%s", n);
 224   else if (t->kind == TKIND_ALIAS) fprintf(h, "%s", t->name);
 225   else {
 226     if (t->sign > 0) fprintf(h, "signed ");
 227     else if (t->sign < 0) fprintf(h, "unsigned ");
 228     switch (t->type) {
 229       case RPC_FC_ENUM16:
 230       case RPC_FC_ENUM32:
 231         if (t->defined && !t->written && !t->ignore) {
 232           if (t->name) fprintf(h, "enum %s {\n", t->name);
 233           else fprintf(h, "enum {\n");
 234           t->written = TRUE;
 235           indentation++;
 236           write_enums(h, t->fields);
 237           indent(h, -1);
 238           fprintf(h, "}");
 239         }
 240         else fprintf(h, "enum %s", t->name);
 241         break;
 242       case RPC_FC_STRUCT:
 243       case RPC_FC_CVSTRUCT:
 244       case RPC_FC_CPSTRUCT:
 245       case RPC_FC_CSTRUCT:
 246       case RPC_FC_PSTRUCT:
 247       case RPC_FC_BOGUS_STRUCT:
 248       case RPC_FC_ENCAPSULATED_UNION:
 249         if (t->defined && !t->written && !t->ignore) {
 250           if (t->name) fprintf(h, "struct %s {\n", t->name);
 251           else fprintf(h, "struct {\n");
 252           t->written = TRUE;
 253           indentation++;
 254           write_fields(h, t->fields);
 255           indent(h, -1);
 256           fprintf(h, "}");
 257         }
 258         else fprintf(h, "struct %s", t->name);
 259         break;
 260       case RPC_FC_NON_ENCAPSULATED_UNION:
 261         if (t->defined && !t->written && !t->ignore) {
 262           if (t->name) fprintf(h, "union %s {\n", t->name);
 263           else fprintf(h, "union {\n");
 264           t->written = TRUE;
 265           indentation++;
 266           write_fields(h, t->fields);
 267           indent(h, -1);
 268           fprintf(h, "}");
 269         }
 270         else fprintf(h, "union %s", t->name);
 271         break;
 272       case RPC_FC_RP:
 273       case RPC_FC_UP:
 274       case RPC_FC_FP:
 275       case RPC_FC_OP:
 276         if (t->ref) write_type(h, t->ref, NULL, t->name);
 277         fprintf(h, "%s*", needs_space_after(t->ref) ? " " : "");
 278         break;
 279       default:
 280         fprintf(h, "%s", t->name);
 281     }
 282   }
 283   if (v) {
 284     for (c=0; c<v->ptr_level; c++) {
 285       fprintf(h, "*");
 286     }
 287   }
 288 }
 289
 290
 291 struct user_type
 292 {
 293     struct user_type *next;
 294     char name[1];
 295 };
 296
 297 static struct user_type *user_type_list;
 298
 299 static int user_type_registered(const char *name)
 300 {
 301   struct user_type *ut;
 302   for (ut = user_type_list; ut; ut = ut->next)
 303     if (!strcmp(name, ut->name))
 304         return 1;
 305   return 0;
 306 }
 307
 308 static void check_for_user_types(const var_list_t *list)
 309 {
 310   const var_t *v;
 311
 312   if (!list) return;
 313   LIST_FOR_EACH_ENTRY( v, list, const var_t, entry )
 314   {
 315     type_t *type;
 316     for (type = v->type; type; type = type->kind == TKIND_ALIAS ? type->orig : type->ref) {
 317       const char *name = type->name;
 318       if (type->user_types_registered) continue;
 319       type->user_types_registered = 1;
 320       if (is_attr(type->attrs, ATTR_WIREMARSHAL)) {
 321         if (!user_type_registered(name))
 322         {
 323           struct user_type *ut = xmalloc(sizeof(struct user_type) + strlen(name));
 324           strcpy(ut->name, name);
 325           ut->next = user_type_list;
 326           user_type_list = ut;
 327         }
 328         /* don't carry on parsing fields within this type as we are already
 329          * using a wire marshaled type */
 330         break;
 331       }
 332       else
 333       {
 334         check_for_user_types(type->fields);
 335       }
 336     }
 337   }
 338 }
 339
 340 void write_user_types(void)
 341 {
 342   struct user_type *ut;
 343   for (ut = user_type_list; ut; ut = ut->next)
 344   {
 345     const char *name = ut->name;
 346     fprintf(header, "ULONG           __RPC_USER %s_UserSize     (ULONG *, ULONG, %s *);\n", name, name);
 347     fprintf(header, "unsigned char * __RPC_USER %s_UserMarshal  (ULONG *, unsigned char *, %s *);\n", name, name);
 348     fprintf(header, "unsigned char * __RPC_USER %s_UserUnmarshal(ULONG *, unsigned char *, %s *);\n", name, name);
 349     fprintf(header, "void            __RPC_USER %s_UserFree     (ULONG *, %s *);\n", name, name);
 350   }
 351 }
 352
 353 void write_typedef(type_t *type)
 354 {
 355   fprintf(header, "typedef ");
 356   write_type(header, type->orig, NULL, NULL);
 357   fprintf(header, "%s%s;\n", needs_space_after(type->orig) ? " " : "", type->name);
 358 }
 359
 360 void write_expr(FILE *h, const expr_t *e, int brackets)
 361 {
 362   switch (e->type) {
 363   case EXPR_VOID:
 364     break;
 365   case EXPR_NUM:
 366     fprintf(h, "%lu", e->u.lval);
 367     break;
 368   case EXPR_HEXNUM:
 369     fprintf(h, "0x%lx", e->u.lval);
 370     break;
 371   case EXPR_TRUEFALSE:
 372     if (e->u.lval == 0)
 373       fprintf(h, "FALSE");
 374     else
 375       fprintf(h, "TRUE");
 376     break;
 377   case EXPR_IDENTIFIER:
 378     fprintf(h, "%s", e->u.sval);
 379     break;
 380   case EXPR_NEG:
 381     fprintf(h, "-");
 382     write_expr(h, e->ref, 1);
 383     break;
 384   case EXPR_NOT:
 385     fprintf(h, "~");
 386     write_expr(h, e->ref, 1);
 387     break;
 388   case EXPR_PPTR:
 389     fprintf(h, "*");
 390     write_expr(h, e->ref, 1);
 391     break;
 392   case EXPR_CAST:
 393     fprintf(h, "(");
 394     write_type(h, e->u.tref->ref, NULL, e->u.tref->name);
 395     fprintf(h, ")");
 396     write_expr(h, e->ref, 1);
 397     break;
 398   case EXPR_SIZEOF:
 399     fprintf(h, "sizeof(");
 400     write_type(h, e->u.tref->ref, NULL, e->u.tref->name);
 401     fprintf(h, ")");
 402     break;
 403   case EXPR_SHL:
 404   case EXPR_SHR:
 405   case EXPR_MUL:
 406   case EXPR_DIV:
 407   case EXPR_ADD:
 408   case EXPR_SUB:
 409   case EXPR_AND:
 410   case EXPR_OR:
 411     if (brackets) fprintf(h, "(");
 412     write_expr(h, e->ref, 1);
 413     switch (e->type) {
 414     case EXPR_SHL: fprintf(h, " << "); break;
 415     case EXPR_SHR: fprintf(h, " >> "); break;
 416     case EXPR_MUL: fprintf(h, " * "); break;
 417     case EXPR_DIV: fprintf(h, " / "); break;
 418     case EXPR_ADD: fprintf(h, " + "); break;
 419     case EXPR_SUB: fprintf(h, " - "); break;
 420     case EXPR_AND: fprintf(h, " & "); break;
 421     case EXPR_OR:  fprintf(h, " | "); break;
 422     default: break;
 423     }
 424     write_expr(h, e->u.ext, 1);
 425     if (brackets) fprintf(h, ")");
 426     break;
 427   case EXPR_COND:
 428     if (brackets) fprintf(h, "(");
 429     write_expr(h, e->ref, 1);
 430     fprintf(h, " ? ");
 431     write_expr(h, e->u.ext, 1);
 432     fprintf(h, " : ");
 433     write_expr(h, e->ext2, 1);
 434     if (brackets) fprintf(h, ")");
 435     break;
 436   }
 437 }
 438
 439 void write_constdef(const var_t *v)
 440 {
 441   fprintf(header, "#define %s (", get_name(v));
 442   write_expr(header, v->eval, 0);
 443   fprintf(header, ")\n\n");
 444 }
 445
 446 void write_externdef(const var_t *v)
 447 {
 448   fprintf(header, "extern const ");
 449   write_type(header, v->type, NULL, v->tname);
 450   if (get_name(v)) {
 451     fprintf(header, " ");
 452     write_pident(header, v);
 453   }
 454   fprintf(header, ";\n\n");
 455 }
 456
 457 void write_library(const char *name, const attr_list_t *attr)
 458 {
 459   const UUID *uuid = get_attrp(attr, ATTR_UUID);
 460   fprintf(header, "\n");
 461   write_guid(header, "LIBID", name, uuid);
 462   fprintf(header, "\n");
 463 }
 464
 465
 466 const var_t* get_explicit_handle_var(const func_t* func)
 467 {
 468     const var_t* var;
 469
 470     if (!func->args)
 471         return NULL;
 472
 473     LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
 474         if (var->type->type == RPC_FC_BIND_PRIMITIVE)
 475             return var;
 476
 477     return NULL;
 478 }
 479
 480 int has_out_arg_or_return(const func_t *func)
 481 {
 482     const var_t *var;
 483
 484     if (!is_void(func->def->type, NULL))
 485         return 1;
 486
 487     if (!func->args)
 488         return 0;
 489
 490     LIST_FOR_EACH_ENTRY( var, func->args, const var_t, entry )
 491         if (is_attr(var->attrs, ATTR_OUT))
 492             return 1;
 493
 494     return 0;
 495 }
 496
 497
 498 /********** INTERFACES **********/
 499
 500 int is_object(const attr_list_t *list)
 501 {
 502     const attr_t *attr;
 503     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
 504         if (attr->type == ATTR_OBJECT || attr->type == ATTR_ODL) return 1;
 505     return 0;
 506 }
 507
 508 int is_local(const attr_list_t *a)
 509 {
 510   return is_attr(a, ATTR_LOCAL);
 511 }
 512
 513 const var_t *is_callas(const attr_list_t *a)
 514 {
 515   return get_attrp(a, ATTR_CALLAS);
 516 }
 517
 518 static void write_method_macro(const type_t *iface, const char *name)
 519 {
 520   const func_t *cur;
 521
 522   if (iface->ref) write_method_macro(iface->ref, name);
 523
 524   if (!iface->funcs) return;
 525
 526   fprintf(header, "/*** %s methods ***/\n", iface->name);
 527   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 528   {
 529     var_t *def = cur->def;
 530     if (!is_callas(def->attrs)) {
 531       const var_t *arg;
 532       int argc = 0;
 533       int c;
 534
 535       if (cur->args) LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry ) argc++;
 536
 537       fprintf(header, "#define %s_", name);
 538       write_name(header,def);
 539       fprintf(header, "(p");
 540       for (c=0; c<argc; c++)
 541         fprintf(header, ",%c", c+'a');
 542       fprintf(header, ") ");
 543
 544       fprintf(header, "(p)->lpVtbl->");
 545       write_name(header, def);
 546       fprintf(header, "(p");
 547       for (c=0; c<argc; c++)
 548         fprintf(header, ",%c", c+'a');
 549       fprintf(header, ")\n");
 550     }
 551   }
 552 }
 553
 554 void write_args(FILE *h, const var_list_t *args, const char *name, int method, int do_indent)
 555 {
 556   const var_t *arg;
 557   int count = 0;
 558
 559   if (do_indent)
 560   {
 561       indentation++;
 562       indent(h, 0);
 563   }
 564   if (method == 1) {
 565     fprintf(h, "%s* This", name);
 566     count++;
 567   }
 568   if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry ) {
 569     if (count) {
 570         if (do_indent)
 571         {
 572             fprintf(h, ",\n");
 573             indent(h, 0);
 574         }
 575         else fprintf(h, ",");
 576     }
 577     write_type(h, arg->type, arg, arg->tname);
 578     if (arg->args)
 579     {
 580       fprintf(h, " (STDMETHODCALLTYPE *");
 581       write_name(h,arg);
 582       fprintf(h, ")(");
 583       write_args(h, arg->args, NULL, 0, FALSE);
 584       fprintf(h, ")");
 585     }
 586     else
 587     {
 588       if (needs_space_after(arg->type))
 589         fprintf(h, " ");
 590       write_name(h, arg);
 591     }
 592     write_array(h, arg->array, 0);
 593     count++;
 594   }
 595   if (do_indent) indentation--;
 596 }
 597
 598 static void write_cpp_method_def(const type_t *iface)
 599 {
 600   const func_t *cur;
 601
 602   if (!iface->funcs) return;
 603
 604   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 605   {
 606     var_t *def = cur->def;
 607     if (!is_callas(def->attrs)) {
 608       indent(header, 0);
 609       fprintf(header, "virtual ");
 610       write_type(header, def->type, def, def->tname);
 611       fprintf(header, " STDMETHODCALLTYPE ");
 612       write_name(header, def);
 613       fprintf(header, "(\n");
 614       write_args(header, cur->args, iface->name, 2, TRUE);
 615       fprintf(header, ") = 0;\n");
 616       fprintf(header, "\n");
 617     }
 618   }
 619 }
 620
 621 static void do_write_c_method_def(const type_t *iface, const char *name)
 622 {
 623   const func_t *cur;
 624
 625   if (iface->ref) do_write_c_method_def(iface->ref, name);
 626
 627   if (!iface->funcs) return;
 628   indent(header, 0);
 629   fprintf(header, "/*** %s methods ***/\n", iface->name);
 630   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 631   {
 632     const var_t *def = cur->def;
 633     if (!is_callas(def->attrs)) {
 634       indent(header, 0);
 635       write_type(header, def->type, def, def->tname);
 636       fprintf(header, " (STDMETHODCALLTYPE *");
 637       write_name(header, def);
 638       fprintf(header, ")(\n");
 639       write_args(header, cur->args, name, 1, TRUE);
 640       fprintf(header, ");\n");
 641       fprintf(header, "\n");
 642     }
 643   }
 644 }
 645
 646 static void write_c_method_def(const type_t *iface)
 647 {
 648   do_write_c_method_def(iface, iface->name);
 649 }
 650
 651 static void write_c_disp_method_def(const type_t *iface)
 652 {
 653   do_write_c_method_def(iface->ref, iface->name);
 654 }
 655
 656 static void write_method_proto(const type_t *iface)
 657 {
 658   const func_t *cur;
 659
 660   if (!iface->funcs) return;
 661   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 662   {
 663     const var_t *def = cur->def;
 664     const var_t *cas = is_callas(def->attrs);
 665
 666     if (!is_local(def->attrs)) {
 667       /* proxy prototype */
 668       write_type(header, def->type, def, def->tname);
 669       fprintf(header, " CALLBACK %s_", iface->name);
 670       write_name(header, def);
 671       fprintf(header, "_Proxy(\n");
 672       write_args(header, cur->args, iface->name, 1, TRUE);
 673       fprintf(header, ");\n");
 674       /* stub prototype */
 675       fprintf(header, "void __RPC_STUB %s_", iface->name);
 676       write_name(header,def);
 677       fprintf(header, "_Stub(\n");
 678       fprintf(header, "    IRpcStubBuffer* This,\n");
 679       fprintf(header, "    IRpcChannelBuffer* pRpcChannelBuffer,\n");
 680       fprintf(header, "    PRPC_MESSAGE pRpcMessage,\n");
 681       fprintf(header, "    DWORD* pdwStubPhase);\n");
 682       check_for_user_types(cur->args);
 683     }
 684     if (cas) {
 685       const func_t *m;
 686       LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 687           if (!strcmp(get_name(m->def), cas->name)) break;
 688       if (&m->entry != iface->funcs) {
 689         const var_t *mdef = m->def;
 690         /* proxy prototype - use local prototype */
 691         write_type(header, mdef->type, mdef, mdef->tname);
 692         fprintf(header, " CALLBACK %s_", iface->name);
 693         write_name(header, mdef);
 694         fprintf(header, "_Proxy(\n");
 695         write_args(header, m->args, iface->name, 1, TRUE);
 696         fprintf(header, ");\n");
 697         /* stub prototype - use remotable prototype */
 698         write_type(header, def->type, def, def->tname);
 699         fprintf(header, " __RPC_STUB %s_", iface->name);
 700         write_name(header, mdef);
 701         fprintf(header, "_Stub(\n");
 702         write_args(header, cur->args, iface->name, 1, TRUE);
 703         fprintf(header, ");\n");
 704       }
 705       else {
 706         parser_warning("invalid call_as attribute (%s -> %s)\n", get_name(def), cas->name);
 707       }
 708     }
 709   }
 710 }
 711
 712 static void write_function_proto(const type_t *iface)
 713 {
 714   const char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
 715   int explicit_handle = is_attr(iface->attrs, ATTR_EXPLICIT_HANDLE);
 716   const var_t* explicit_handle_var;
 717   const func_t *cur;
 718
 719   if (!iface->funcs) return;
 720   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 721   {
 722     var_t *def = cur->def;
 723
 724     /* check for a defined binding handle */
 725     explicit_handle_var = get_explicit_handle_var(cur);
 726     if (explicit_handle) {
 727       if (!explicit_handle_var) {
 728         error("%s() does not define an explicit binding handle!\n", def->name);
 729         return;
 730       }
 731     } else if (implicit_handle) {
 732       if (explicit_handle_var) {
 733         error("%s() must not define a binding handle!\n", def->name);
 734         return;
 735       }
 736     }
 737
 738     /* FIXME: do we need to handle call_as? */
 739     write_type(header, def->type, def, def->tname);
 740     fprintf(header, " ");
 741     write_name(header, def);
 742     fprintf(header, "(\n");
 743     if (cur->args)
 744       write_args(header, cur->args, iface->name, 0, TRUE);
 745     else
 746       fprintf(header, "    void");
 747     fprintf(header, ");\n");
 748   }
 749 }
 750
 751 void write_forward(type_t *iface)
 752 {
 753   /* C/C++ forwards should only be written for object interfaces, so if we
 754    * have a full definition we only write one if we find [object] among the
 755    * attributes - however, if we don't have a full definition at this point
 756    * (i.e. this is an IDL forward), then we also assume that it is an object
 757    * interface, since non-object interfaces shouldn't need forwards */
 758   if ((!iface->defined || is_object(iface->attrs) || is_attr(iface->attrs, ATTR_DISPINTERFACE))
 759         && !iface->written) {
 760     fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", iface->name);
 761     fprintf(header, "#define __%s_FWD_DEFINED__\n", iface->name);
 762     fprintf(header, "typedef interface %s %s;\n", iface->name, iface->name);
 763     fprintf(header, "#endif\n\n" );
 764     iface->written = TRUE;
 765   }
 766 }
 767
 768 static void write_iface_guid(const type_t *iface)
 769 {
 770   const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 771   write_guid(header, "IID", iface->name, uuid);
 772 }
 773
 774 static void write_dispiface_guid(const type_t *iface)
 775 {
 776   const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 777   write_guid(header, "DIID", iface->name, uuid);
 778 }
 779
 780 static void write_coclass_guid(type_t *cocl)
 781 {
 782   const UUID *uuid = get_attrp(cocl->attrs, ATTR_UUID);
 783   write_guid(header, "CLSID", cocl->name, uuid);
 784 }
 785
 786 static void write_com_interface(type_t *iface)
 787 {
 788   if (!iface->funcs && !iface->ref) {
 789     parser_warning("%s has no methods", iface->name);
 790     return;
 791   }
 792
 793   fprintf(header, "/*****************************************************************************\n");
 794   fprintf(header, " * %s interface\n", iface->name);
 795   fprintf(header, " */\n");
 796   fprintf(header,"#ifndef __%s_INTERFACE_DEFINED__\n", iface->name);
 797   fprintf(header,"#define __%s_INTERFACE_DEFINED__\n\n", iface->name);
 798   write_iface_guid(iface);
 799   write_forward(iface);
 800   /* C++ interface */
 801   fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
 802   if (iface->ref)
 803   {
 804       fprintf(header, "interface %s : public %s\n", iface->name, iface->ref->name);
 805       fprintf(header, "{\n");
 806       indentation++;
 807       write_cpp_method_def(iface);
 808       indentation--;
 809       fprintf(header, "};\n");
 810   }
 811   else
 812   {
 813       fprintf(header, "interface %s\n", iface->name);
 814       fprintf(header, "{\n");
 815       fprintf(header, "    BEGIN_INTERFACE\n");
 816       fprintf(header, "\n");
 817       indentation++;
 818       write_cpp_method_def(iface);
 819       indentation--;
 820       fprintf(header, "    END_INTERFACE\n");
 821       fprintf(header, "};\n");
 822   }
 823   fprintf(header, "#else\n");
 824   /* C interface */
 825   fprintf(header, "typedef struct %sVtbl {\n", iface->name);
 826   indentation++;
 827   fprintf(header, "    BEGIN_INTERFACE\n");
 828   fprintf(header, "\n");
 829   write_c_method_def(iface);
 830   indentation--;
 831   fprintf(header, "    END_INTERFACE\n");
 832   fprintf(header, "} %sVtbl;\n", iface->name);
 833   fprintf(header, "interface %s {\n", iface->name);
 834   fprintf(header, "    CONST_VTBL %sVtbl* lpVtbl;\n", iface->name);
 835   fprintf(header, "};\n");
 836   fprintf(header, "\n");
 837   fprintf(header, "#ifdef COBJMACROS\n");
 838   write_method_macro(iface, iface->name);
 839   fprintf(header, "#endif\n");
 840   fprintf(header, "\n");
 841   fprintf(header, "#endif\n");
 842   fprintf(header, "\n");
 843   write_method_proto(iface);
 844   fprintf(header,"\n#endif  /* __%s_INTERFACE_DEFINED__ */\n\n", iface->name);
 845 }
 846
 847 static void write_rpc_interface(const type_t *iface)
 848 {
 849   unsigned long ver = get_attrv(iface->attrs, ATTR_VERSION);
 850   const char *var = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
 851   static int allocate_written = 0;
 852
 853   if (!allocate_written)
 854   {
 855     allocate_written = 1;
 856     fprintf(header, "void * __RPC_USER MIDL_user_allocate(size_t);\n");
 857     fprintf(header, "void __RPC_USER MIDL_user_free(void *);\n\n");
 858   }
 859
 860   fprintf(header, "/*****************************************************************************\n");
 861   fprintf(header, " * %s interface (v%d.%d)\n", iface->name, LOWORD(ver), HIWORD(ver));
 862   fprintf(header, " */\n");
 863   fprintf(header,"#ifndef __%s_INTERFACE_DEFINED__\n", iface->name);
 864   fprintf(header,"#define __%s_INTERFACE_DEFINED__\n\n", iface->name);
 865   if (iface->funcs)
 866   {
 867     write_iface_guid(iface);
 868     if (var) fprintf(header, "extern handle_t %s;\n", var);
 869     if (old_names)
 870     {
 871         fprintf(header, "extern RPC_IF_HANDLE %s_ClientIfHandle;\n", iface->name);
 872         fprintf(header, "extern RPC_IF_HANDLE %s_ServerIfHandle;\n", iface->name);
 873     }
 874     else
 875     {
 876         fprintf(header, "extern RPC_IF_HANDLE %s_v%d_%d_c_ifspec;\n", iface->name, LOWORD(ver), HIWORD(ver));
 877         fprintf(header, "extern RPC_IF_HANDLE %s_v%d_%d_s_ifspec;\n", iface->name, LOWORD(ver), HIWORD(ver));
 878     }
 879     write_function_proto(iface);
 880   }
 881   fprintf(header,"\n#endif  /* __%s_INTERFACE_DEFINED__ */\n\n", iface->name);
 882
 883   /* FIXME: server/client code */
 884 }
 885
 886 void write_interface(type_t *iface)
 887 {
 888   if (is_object(iface->attrs))
 889     write_com_interface(iface);
 890   else
 891     write_rpc_interface(iface);
 892 }
 893
 894 void write_dispinterface(type_t *iface)
 895 {
 896   fprintf(header, "/*****************************************************************************\n");
 897   fprintf(header, " * %s dispinterface\n", iface->name);
 898   fprintf(header, " */\n");
 899   fprintf(header,"#ifndef __%s_DISPINTERFACE_DEFINED__\n", iface->name);
 900   fprintf(header,"#define __%s_DISPINTERFACE_DEFINED__\n\n", iface->name);
 901   write_dispiface_guid(iface);
 902   write_forward(iface);
 903   /* C++ interface */
 904   fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
 905   fprintf(header, "interface %s : public %s\n", iface->name, iface->ref->name);
 906   fprintf(header, "{\n");
 907   fprintf(header, "};\n");
 908   fprintf(header, "#else\n");
 909   /* C interface */
 910   fprintf(header, "typedef struct %sVtbl {\n", iface->name);
 911   indentation++;
 912   fprintf(header, "    BEGIN_INTERFACE\n");
 913   fprintf(header, "\n");
 914   write_c_disp_method_def(iface);
 915   indentation--;
 916   fprintf(header, "    END_INTERFACE\n");
 917   fprintf(header, "} %sVtbl;\n", iface->name);
 918   fprintf(header, "interface %s {\n", iface->name);
 919   fprintf(header, "    CONST_VTBL %sVtbl* lpVtbl;\n", iface->name);
 920   fprintf(header, "};\n");
 921   fprintf(header, "\n");
 922   fprintf(header, "#ifdef COBJMACROS\n");
 923   write_method_macro(iface->ref, iface->name);
 924   fprintf(header, "#endif\n");
 925   fprintf(header, "\n");
 926   fprintf(header, "#endif\n");
 927   fprintf(header, "\n");
 928   fprintf(header,"#endif  /* __%s_DISPINTERFACE_DEFINED__ */\n\n", iface->name);
 929 }
 930
 931 void write_coclass(type_t *cocl)
 932 {
 933   fprintf(header, "/*****************************************************************************\n");
 934   fprintf(header, " * %s coclass\n", cocl->name);
 935   fprintf(header, " */\n\n");
 936   write_coclass_guid(cocl);
 937   fprintf(header, "\n");
 938 }
 939
 940 void write_coclass_forward(type_t *cocl)
 941 {
 942   fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", cocl->name);
 943   fprintf(header, "#define __%s_FWD_DEFINED__\n", cocl->name);
 944   fprintf(header, "typedef struct %s %s;\n", cocl->name, cocl->name);
 945   fprintf(header, "#endif /* defined __%s_FWD_DEFINED__ */\n\n", cocl->name );
 946 }