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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 "widl.h"
  34 #include "utils.h"
  35 #include "parser.h"
  36 #include "header.h"
  37 #include "proxy.h"
  38
  39 static int indentation = 0;
  40
  41 static void indent(int delta)
  42 {
  43   int c;
  44   if (delta < 0) indentation += delta;
  45   for (c=0; c<indentation; c++) fprintf(header, "    ");
  46   if (delta > 0) indentation += delta;
  47 }
  48
  49 int is_attr(attr_t *a, enum attr_type t)
  50 {
  51   while (a) {
  52     if (a->type == t) return 1;
  53     a = NEXT_LINK(a);
  54   }
  55   return 0;
  56 }
  57
  58 void *get_attrp(attr_t *a, enum attr_type t)
  59 {
  60   while (a) {
  61     if (a->type == t) return a->u.pval;
  62     a = NEXT_LINK(a);
  63   }
  64   return NULL;
  65 }
  66
  67 DWORD get_attrv(attr_t *a, enum attr_type t)
  68 {
  69   while (a) {
  70     if (a->type == t) return a->u.ival;
  71     a = NEXT_LINK(a);
  72   }
  73   return 0;
  74 }
  75
  76 int is_void(type_t *t, var_t *v)
  77 {
  78   if (v && v->ptr_level) return 0;
  79   if (!t->type && !t->ref) return 1;
  80   return 0;
  81 }
  82
  83 static void write_pident(FILE *h, var_t *v)
  84 {
  85   int c;
  86   for (c=0; c<v->ptr_level; c++) {
  87     fprintf(h, "*");
  88   }
  89   if (v->name) fprintf(h, "%s", v->name);
  90 }
  91
  92 void write_name(FILE *h, var_t *v)
  93 {
  94   fprintf(h, "%s", v->name);
  95 }
  96
  97 char* get_name(var_t *v)
  98 {
  99   return v->name;
 100 }
 101
 102 static void write_array(FILE *h, expr_t *v, int field)
 103 {
 104   if (!v) return;
 105   while (NEXT_LINK(v)) v = NEXT_LINK(v);
 106   fprintf(h, "[");
 107   while (v) {
 108     if (v->is_const)
 109       fprintf(h, "%ld", v->cval); /* statically sized array */
 110     else
 111       if (field) fprintf(h, "1"); /* dynamically sized array */
 112     if (PREV_LINK(v))
 113       fprintf(h, ", ");
 114     v = PREV_LINK(v);
 115   }
 116   fprintf(h, "]");
 117 }
 118
 119 static void write_field(FILE *h, var_t *v)
 120 {
 121   if (!v) return;
 122   if (v->type) {
 123     indent(0);
 124     write_type(h, v->type, NULL, v->tname);
 125     if (get_name(v)) {
 126       fprintf(h, " ");
 127       write_pident(h, v);
 128     }
 129     else {
 130       /* not all C/C++ compilers support anonymous structs and unions */
 131       switch (v->type->type) {
 132       case RPC_FC_STRUCT:
 133       case RPC_FC_ENCAPSULATED_UNION:
 134         fprintf(h, " DUMMYSTRUCTNAME");
 135         break;
 136       case RPC_FC_NON_ENCAPSULATED_UNION:
 137         fprintf(h, " DUMMYUNIONNAME");
 138         break;
 139       default:
 140         /* ? */
 141         break;
 142       }
 143     }
 144     write_array(h, v->array, 1);
 145     fprintf(h, ";\n");
 146   }
 147 }
 148
 149 static void write_fields(FILE *h, var_t *v)
 150 {
 151   var_t *first = v;
 152   if (!v) return;
 153   while (NEXT_LINK(v)) v = NEXT_LINK(v);
 154   while (v) {
 155     write_field(h, v);
 156     if (v == first) break;
 157     v = PREV_LINK(v);
 158   }
 159 }
 160
 161 static void write_enums(FILE *h, var_t *v)
 162 {
 163   if (!v) return;
 164   while (NEXT_LINK(v)) v = NEXT_LINK(v);
 165   while (v) {
 166     if (get_name(v)) {
 167       indent(0);
 168       write_name(h, v);
 169       if (v->eval) {
 170         fprintf(h, " = ");
 171         write_expr(h, v->eval);
 172       }
 173     }
 174     if (PREV_LINK(v))
 175       fprintf(h, ",\n");
 176     v = PREV_LINK(v);
 177   }
 178   fprintf(h, "\n");
 179 }
 180
 181 void write_type(FILE *h, type_t *t, var_t *v, char *n)
 182 {
 183   int c;
 184
 185   if (n) fprintf(h, "%s", n);
 186   else {
 187     if (t->is_const) fprintf(h, "const ");
 188     if (t->type) {
 189       if (t->sign > 0) fprintf(h, "signed ");
 190       else if (t->sign < 0) fprintf(h, "unsigned ");
 191       switch (t->type) {
 192       case RPC_FC_BYTE:
 193         if (t->ref) fprintf(h, t->ref->name);
 194         else fprintf(h, "byte");
 195         break;
 196       case RPC_FC_CHAR:
 197         if (t->ref) fprintf(h, t->ref->name);
 198         else fprintf(h, "char");
 199         break;
 200       case RPC_FC_WCHAR:
 201         fprintf(h, "wchar_t");
 202         break;
 203       case RPC_FC_USHORT:
 204       case RPC_FC_SHORT:
 205         if (t->ref) fprintf(h, t->ref->name);
 206         else fprintf(h, "short");
 207         break;
 208       case RPC_FC_ULONG:
 209       case RPC_FC_LONG:
 210         if (t->ref) fprintf(h, t->ref->name);
 211         else fprintf(h, "long");
 212         break;
 213       case RPC_FC_HYPER:
 214         if (t->ref) fprintf(h, t->ref->name);
 215         else fprintf(h, "hyper");
 216         break;
 217       case RPC_FC_FLOAT:
 218         fprintf(h, "float");
 219         break;
 220       case RPC_FC_DOUBLE:
 221         fprintf(h, "double");
 222         break;
 223       case RPC_FC_ENUM16:
 224       case RPC_FC_ENUM32:
 225         if (t->defined && !t->written) {
 226           if (t->name) fprintf(h, "enum %s {\n", t->name);
 227           else fprintf(h, "enum {\n");
 228           t->written = TRUE;
 229           indentation++;
 230           write_enums(h, t->fields);
 231           indent(-1);
 232           fprintf(h, "}");
 233         }
 234         else fprintf(h, "enum %s", t->name);
 235         break;
 236       case RPC_FC_ERROR_STATUS_T:
 237         if (t->ref) fprintf(h, t->ref->name);
 238         else fprintf(h, "error_status_t");
 239         break;
 240       case RPC_FC_BIND_PRIMITIVE:
 241         if (t->ref) fprintf(h, t->ref->name);
 242         else fprintf(h, "handle_t");
 243         break;
 244       case RPC_FC_STRUCT:
 245       case RPC_FC_ENCAPSULATED_UNION:
 246         if (t->defined && !t->written) {
 247           if (t->name) fprintf(h, "struct %s {\n", t->name);
 248           else fprintf(h, "struct {\n");
 249           t->written = TRUE;
 250           indentation++;
 251           write_fields(h, t->fields);
 252           indent(-1);
 253           fprintf(h, "}");
 254         }
 255         else fprintf(h, "struct %s", t->name);
 256         break;
 257       case RPC_FC_NON_ENCAPSULATED_UNION:
 258         if (t->defined && !t->written) {
 259           if (t->name) fprintf(h, "union %s {\n", t->name);
 260           else fprintf(h, "union {\n");
 261           t->written = TRUE;
 262           indentation++;
 263           write_fields(h, t->fields);
 264           indent(-1);
 265           fprintf(h, "}");
 266         }
 267         else fprintf(h, "union %s", t->name);
 268         break;
 269       default:
 270         fprintf(h, "(unknown-type:%d)", t->type);
 271       }
 272     }
 273     else {
 274       if (t->ref) {
 275         write_type(h, t->ref, NULL, t->name);
 276       }
 277       else fprintf(h, "void");
 278     }
 279   }
 280   if (v) {
 281     for (c=0; c<v->ptr_level; c++) {
 282       fprintf(h, "*");
 283     }
 284   }
 285 }
 286
 287 void write_typedef(type_t *type, var_t *names)
 288 {
 289   char *tname = names->tname;
 290   var_t *lname;
 291   while (NEXT_LINK(names)) names = NEXT_LINK(names);
 292   lname = names;
 293   fprintf(header, "typedef ");
 294   write_type(header, type, NULL, tname);
 295   fprintf(header, " ");
 296   while (names) {
 297     write_pident(header, names);
 298     if (PREV_LINK(names))
 299       fprintf(header, ", ");
 300     names = PREV_LINK(names);
 301   }
 302   fprintf(header, ";\n");
 303
 304   if (get_attrp(type->attrs, ATTR_WIREMARSHAL)) {
 305     names = lname;
 306     while (names) {
 307       char *name = get_name(names);
 308       fprintf(header, "unsigned long   __RPC_USER %s_UserSize     (unsigned long *, unsigned long,   %s *);\n", name, name);
 309       fprintf(header, "unsigned char * __RPC_USER %s_UserMarshal  (unsigned long *, unsigned char *, %s *);\n", name, name);
 310       fprintf(header, "unsigned char * __RPC_USER %s_UserUnmarshal(unsigned long *, unsigned char *, %s *);\n", name, name);
 311       fprintf(header, "void            __RPC_USER %s_UserFree     (unsigned long *, %s *);\n", name, name);
 312       if (PREV_LINK(names))
 313         fprintf(header, ", ");
 314       names = PREV_LINK(names);
 315     }
 316   }
 317
 318   fprintf(header, "\n");
 319 }
 320
 321 static void do_write_expr(FILE *h, expr_t *e, int p)
 322 {
 323   switch (e->type) {
 324   case EXPR_VOID:
 325     break;
 326   case EXPR_NUM:
 327     fprintf(h, "%ld", e->u.lval);
 328     break;
 329   case EXPR_HEXNUM:
 330     fprintf(h, "0x%lx", e->u.lval);
 331     break;
 332   case EXPR_IDENTIFIER:
 333     fprintf(h, "%s", e->u.sval);
 334     break;
 335   case EXPR_NEG:
 336     fprintf(h, "-");
 337     do_write_expr(h, e->ref, 1);
 338     break;
 339   case EXPR_NOT:
 340     fprintf(h, "~");
 341     do_write_expr(h, e->ref, 1);
 342     break;
 343   case EXPR_PPTR:
 344     fprintf(h, "*");
 345     do_write_expr(h, e->ref, 1);
 346     break;
 347   case EXPR_CAST:
 348     fprintf(h, "(");
 349     write_type(h, e->u.tref->ref, NULL, e->u.tref->name);
 350     fprintf(h, ")");
 351     do_write_expr(h, e->ref, 1);
 352     break;
 353   case EXPR_SIZEOF:
 354     fprintf(h, "sizeof(");
 355     write_type(h, e->u.tref->ref, NULL, e->u.tref->name);
 356     fprintf(h, ")");
 357     break;
 358   case EXPR_SHL:
 359   case EXPR_SHR:
 360   case EXPR_MUL:
 361   case EXPR_DIV:
 362   case EXPR_ADD:
 363   case EXPR_SUB:
 364   case EXPR_AND:
 365   case EXPR_OR:
 366     if (p) fprintf(h, "(");
 367     do_write_expr(h, e->ref, 1);
 368     switch (e->type) {
 369     case EXPR_SHL: fprintf(h, " << "); break;
 370     case EXPR_SHR: fprintf(h, " >> "); break;
 371     case EXPR_MUL: fprintf(h, " * "); break;
 372     case EXPR_DIV: fprintf(h, " / "); break;
 373     case EXPR_ADD: fprintf(h, " + "); break;
 374     case EXPR_SUB: fprintf(h, " - "); break;
 375     case EXPR_AND: fprintf(h, " & "); break;
 376     case EXPR_OR:  fprintf(h, " | "); break;
 377     default: break;
 378     }
 379     do_write_expr(h, e->u.ext, 1);
 380     if (p) fprintf(h, ")");
 381     break;
 382   }
 383 }
 384
 385 void write_expr(FILE *h, expr_t *e)
 386 {
 387   do_write_expr(h, e, 0);
 388 }
 389
 390 void write_constdef(var_t *v)
 391 {
 392   fprintf(header, "#define %s (", get_name(v));
 393   write_expr(header, v->eval);
 394   fprintf(header, ")\n\n");
 395 }
 396
 397 void write_externdef(var_t *v)
 398 {
 399   fprintf(header, "extern const ");
 400   write_type(header, v->type, NULL, v->tname);
 401   if (get_name(v)) {
 402     fprintf(header, " ");
 403     write_pident(header, v);
 404   }
 405   fprintf(header, ";\n\n");
 406 }
 407
 408 /********** INTERFACES **********/
 409
 410 int is_object(attr_t *a)
 411 {
 412   return is_attr(a, ATTR_OBJECT);
 413 }
 414
 415 int is_local(attr_t *a)
 416 {
 417   return is_attr(a, ATTR_LOCAL);
 418 }
 419
 420 var_t *is_callas(attr_t *a)
 421 {
 422   return get_attrp(a, ATTR_CALLAS);
 423 }
 424
 425 static void write_icom_method_def(type_t *iface)
 426 {
 427   func_t *cur = iface->funcs;
 428   while (NEXT_LINK(cur)) cur = NEXT_LINK(cur);
 429   while (cur) {
 430     var_t *def = cur->def;
 431     if (!is_callas(def->attrs)) {
 432       var_t *arg = cur->args;
 433       int argc = 0;
 434       if (arg) {
 435         argc++;
 436         while (NEXT_LINK(arg)) {
 437           arg = NEXT_LINK(arg);
 438           argc++;
 439         }
 440       }
 441       fprintf(header, " \\\n");
 442       if (!is_void(def->type, def)) {
 443         if (argc)
 444           fprintf(header, "    ICOM_METHOD%d (", argc);
 445         else
 446           fprintf(header, "    ICOM_METHOD  (");
 447         write_type(header, def->type, def, def->tname);
 448         fprintf(header, ",");
 449       } else
 450         if (argc)
 451           fprintf(header, "    ICOM_VMETHOD%d(", argc);
 452         else
 453           fprintf(header, "    ICOM_VMETHOD (");
 454       write_name(header, def);
 455       while (arg) {
 456         fprintf(header, ",");
 457         write_type(header, arg->type, arg, arg->tname);
 458         /* since the ICOM macros can't express arrays,
 459          * we have to pretend they're pointers instead */
 460         if (arg->array) fprintf(header, "*");
 461         fprintf(header, ",");
 462         write_name(header,arg);
 463         arg = PREV_LINK(arg);
 464       }
 465       fprintf(header, ")");
 466     }
 467     cur = PREV_LINK(cur);
 468   }
 469   fprintf(header, "\n");
 470 }
 471
 472 static int write_method_macro(type_t *iface, char *name)
 473 {
 474   int idx;
 475   func_t *cur = iface->funcs;
 476   while (NEXT_LINK(cur)) cur = NEXT_LINK(cur);
 477
 478   if (iface->ref) idx = write_method_macro(iface->ref, name);
 479   else idx = 0;
 480   fprintf(header, "/*** %s methods ***/\n", iface->name);
 481   while (cur) {
 482     var_t *def = cur->def;
 483     if (!is_callas(def->attrs)) {
 484       var_t *arg = cur->args;
 485       int argc = 0;
 486       int c;
 487       while (arg) {
 488         arg = NEXT_LINK(arg);
 489         argc++;
 490       }
 491
 492       fprintf(header, "#define %s_", name);
 493       write_name(header,def);
 494       fprintf(header, "(p");
 495       for (c=0; c<argc; c++)
 496         fprintf(header, ",%c", c+'a');
 497       fprintf(header, ") ");
 498
 499       if (use_icom) {
 500         if (argc)
 501           fprintf(header, "ICOM_CALL%d(", argc);
 502         else
 503           fprintf(header, "ICOM_CALL(");
 504         write_name(header, def);
 505         fprintf(header, ",p");
 506       }
 507       else {
 508         fprintf(header, "(p)->lpVtbl->");
 509         write_name(header, def);
 510         fprintf(header, "(p");
 511       }
 512       for (c=0; c<argc; c++)
 513         fprintf(header, ",%c", c+'a');
 514       fprintf(header, ")\n");
 515       if (cur->idx == -1) cur->idx = idx;
 516       else if (cur->idx != idx) yyerror("BUG: method index mismatch in write_method_macro");
 517       idx++;
 518     }
 519     cur = PREV_LINK(cur);
 520   }
 521   return idx;
 522 }
 523
 524 void write_args(FILE *h, var_t *arg, char *name, int method)
 525 {
 526   int count = 0;
 527   if (arg) {
 528     while (NEXT_LINK(arg))
 529       arg = NEXT_LINK(arg);
 530   }
 531   if (h == header) {
 532     indentation++;
 533     indent(0);
 534   } else fprintf(h, "    ");
 535   if (method == 1) {
 536     fprintf(h, "%s* This", name);
 537     count++;
 538   }
 539   while (arg) {
 540     if (count) {
 541       fprintf(h, ",\n");
 542       if (h == header) indent(0);
 543       else fprintf(h, "    ");
 544     }
 545     write_type(h, arg->type, arg, arg->tname);
 546     if (method && use_icom && arg->array) fprintf(h, "*"); /* as write_icom_method_def */
 547     fprintf(h, " ");
 548     write_name(h, arg);
 549     if (!(method && use_icom)) write_array(h, arg->array, 0);
 550     arg = PREV_LINK(arg);
 551     count++;
 552   }
 553   if (h == header) indentation--;
 554 }
 555
 556 static void write_cpp_method_def(type_t *iface)
 557 {
 558   func_t *cur = iface->funcs;
 559   while (NEXT_LINK(cur)) cur = NEXT_LINK(cur);
 560   while (cur) {
 561     var_t *def = cur->def;
 562     if (!is_callas(def->attrs)) {
 563       indent(0);
 564       fprintf(header, "virtual ");
 565       write_type(header, def->type, def, def->tname);
 566       fprintf(header, " CALLBACK ");
 567       write_name(header, def);
 568       fprintf(header, "(\n");
 569       write_args(header, cur->args, iface->name, 2);
 570       fprintf(header, ") = 0;\n");
 571       fprintf(header, "\n");
 572     }
 573     cur = PREV_LINK(cur);
 574   }
 575 }
 576
 577 static void do_write_c_method_def(type_t *iface, char *name)
 578 {
 579   func_t *cur = iface->funcs;
 580   while (NEXT_LINK(cur)) cur = NEXT_LINK(cur);
 581
 582   if (iface->ref) do_write_c_method_def(iface->ref, name);
 583   indent(0);
 584   fprintf(header, "/*** %s methods ***/\n", iface->name);
 585   while (cur) {
 586     var_t *def = cur->def;
 587     if (!is_callas(def->attrs)) {
 588       indent(0);
 589       write_type(header, def->type, def, def->tname);
 590       fprintf(header, " (CALLBACK *");
 591       write_name(header, def);
 592       fprintf(header, ")(\n");
 593       write_args(header, cur->args, name, 1);
 594       fprintf(header, ");\n");
 595       fprintf(header, "\n");
 596     }
 597     cur = PREV_LINK(cur);
 598   }
 599 }
 600
 601 static void write_c_method_def(type_t *iface)
 602 {
 603   do_write_c_method_def(iface, iface->name);
 604 }
 605
 606 static void write_method_proto(type_t *iface)
 607 {
 608   func_t *cur = iface->funcs;
 609   while (NEXT_LINK(cur)) cur = NEXT_LINK(cur);
 610   while (cur) {
 611     var_t *def = cur->def;
 612     var_t *cas = is_callas(def->attrs);
 613     if (!is_local(def->attrs)) {
 614       /* proxy prototype */
 615       write_type(header, def->type, def, def->tname);
 616       fprintf(header, " CALLBACK %s_", iface->name);
 617       write_name(header, def);
 618       fprintf(header, "_Proxy(\n");
 619       write_args(header, cur->args, iface->name, 1);
 620       fprintf(header, ");\n");
 621       /* stub prototype */
 622       fprintf(header, "void __RPC_STUB %s_", iface->name);
 623       write_name(header,def);
 624       fprintf(header, "_Stub(\n");
 625       fprintf(header, "    struct IRpcStubBuffer* This,\n");
 626       fprintf(header, "    struct IRpcChannelBuffer* pRpcChannelBuffer,\n");
 627       fprintf(header, "    PRPC_MESSAGE pRpcMessage,\n");
 628       fprintf(header, "    DWORD* pdwStubPhase);\n");
 629     }
 630     if (cas) {
 631       func_t *m = iface->funcs;
 632       while (m && strcmp(get_name(m->def), cas->name))
 633         m = NEXT_LINK(m);
 634       if (m) {
 635         var_t *mdef = m->def;
 636         /* proxy prototype - use local prototype */
 637         write_type(header, mdef->type, mdef, mdef->tname);
 638         fprintf(header, " CALLBACK %s_", iface->name);
 639         write_name(header, mdef);
 640         fprintf(header, "_Proxy(\n");
 641         write_args(header, m->args, iface->name, 1);
 642         fprintf(header, ");\n");
 643         /* stub prototype - use remotable prototype */
 644         write_type(header, def->type, def, def->tname);
 645         fprintf(header, " __RPC_STUB %s_", iface->name);
 646         write_name(header, mdef);
 647         fprintf(header, "_Stub(\n");
 648         write_args(header, cur->args, iface->name, 1);
 649         fprintf(header, ");\n");
 650       }
 651       else {
 652         yywarning("invalid call_as attribute (%s -> %s)\n", get_name(def), cas->name);
 653       }
 654     }
 655
 656     cur = PREV_LINK(cur);
 657   }
 658 }
 659
 660 static void write_function_proto(type_t *iface)
 661 {
 662   func_t *cur = iface->funcs;
 663   while (NEXT_LINK(cur)) cur = NEXT_LINK(cur);
 664   while (cur) {
 665     var_t *def = cur->def;
 666     /* FIXME: do we need to handle call_as? */
 667     write_type(header, def->type, def, def->tname);
 668     fprintf(header, " ");
 669     write_name(header, def);
 670     fprintf(header, "(\n");
 671     write_args(header, cur->args, iface->name, 0);
 672     fprintf(header, ");\n");
 673
 674     cur = PREV_LINK(cur);
 675   }
 676 }
 677
 678 void write_forward(type_t *iface)
 679 {
 680   /* C/C++ forwards should only be written for object interfaces, so if we
 681    * have a full definition we only write one if we find [object] among the
 682    * attributes - however, if we don't have a full definition at this point
 683    * (i.e. this is an IDL forward), then we also assume that it is an object
 684    * interface, since non-object interfaces shouldn't need forwards */
 685   if ((!iface->defined || is_object(iface->attrs)) && !iface->written) {
 686     fprintf(header, "typedef struct %s %s;\n", iface->name, iface->name);
 687     iface->written = TRUE;
 688   }
 689 }
 690
 691 void write_guid(type_t *iface)
 692 {
 693   UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 694   if (!uuid) return;
 695   fprintf(header, "DEFINE_GUID(IID_%s, 0x%08lx, 0x%04x, 0x%04x, 0x%02x,0x%02x, 0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x);\n",
 696           iface->name, uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0], uuid->Data4[1],
 697           uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5], uuid->Data4[6], uuid->Data4[7]);
 698 }
 699
 700 void write_com_interface(type_t *iface)
 701 {
 702   if (!iface->funcs) {
 703     yywarning("%s has no methods", iface->name);
 704     return;
 705   }
 706
 707   fprintf(header, "/*****************************************************************************\n");
 708   fprintf(header, " * %s interface\n", iface->name);
 709   fprintf(header, " */\n");
 710   write_guid(iface);
 711   write_forward(iface);
 712   if (use_icom) {
 713     fprintf(header, "#define ICOM_INTERFACE %s\n", iface->name);
 714     fprintf(header, "#define %s_METHODS", iface->name);
 715     write_icom_method_def(iface);
 716     fprintf(header, "#define %s_IMETHODS \\\n", iface->name);
 717     if (iface->ref)
 718       fprintf(header, "    %s_IMETHODS \\\n", iface->ref->name);
 719     fprintf(header, "    %s_METHODS\n", iface->name);
 720     if (iface->ref)
 721       fprintf(header, "ICOM_DEFINE(%s,%s)\n", iface->name, iface->ref->name);
 722     else
 723       fprintf(header, "ICOM_DEFINE1(%s)\n", iface->name);
 724     fprintf(header, "#undef ICOM_INTERFACE\n");
 725     fprintf(header, "\n");
 726     write_method_macro(iface, iface->name);
 727   }
 728   else {
 729     /* C++ interface */
 730     fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
 731     fprintf(header, "struct %s", iface->name);
 732     if (iface->ref)
 733       fprintf(header, ": %s", iface->ref->name);
 734     fprintf(header, " {\n");
 735     indentation++;
 736     fprintf(header, "\n");
 737     write_cpp_method_def(iface);
 738     indentation--;
 739     fprintf(header, "} ICOM_COM_INTERFACE_ATTRIBUTE;\n");
 740     fprintf(header, "#else\n");
 741     /* C interface */
 742     fprintf(header, "typedef struct %sVtbl %sVtbl;\n", iface->name, iface->name);
 743     fprintf(header, "struct %s {\n", iface->name);
 744     fprintf(header, "    const %sVtbl* lpVtbl;\n", iface->name);
 745     fprintf(header, "};\n");
 746     fprintf(header, "struct %sVtbl {\n", iface->name);
 747     indentation++;
 748     fprintf(header, "    ICOM_MSVTABLE_COMPAT_FIELDS\n");
 749     fprintf(header, "\n");
 750     write_c_method_def(iface);
 751     indentation--;
 752     fprintf(header, "};\n");
 753     fprintf(header, "\n");
 754     if (compat_icom) {
 755       fprintf(header, "#define %s_IMETHODS", iface->name);
 756       if (iface->ref)
 757         fprintf(header, " \\\n    %s_IMETHODS", iface->ref->name);
 758       write_icom_method_def(iface);
 759       fprintf(header, "\n");
 760     }
 761     write_method_macro(iface, iface->name);
 762     fprintf(header, "\n");
 763     fprintf(header, "#endif\n");
 764   }
 765   fprintf(header, "\n");
 766   write_method_proto(iface);
 767   fprintf(header, "\n");
 768
 769   if (!is_local(iface->attrs))
 770     write_proxy(iface);
 771 }
 772
 773 void write_rpc_interface(type_t *iface)
 774 {
 775   DWORD ver = get_attrv(iface->attrs, ATTR_VERSION);
 776
 777   if (!iface->funcs) return;
 778
 779   fprintf(header, "/*****************************************************************************\n");
 780   fprintf(header, " * %s interface (v%d.%d)\n", iface->name, LOWORD(ver), HIWORD(ver));
 781   fprintf(header, " */\n");
 782   write_guid(iface);
 783   fprintf(header, "extern RPC_IF_HANDLE %s_v%d_%d_c_ifspec;\n", iface->name, LOWORD(ver), HIWORD(ver));
 784   fprintf(header, "extern RPC_IF_HANDLE %s_v%d_%d_s_ifspec;\n", iface->name, LOWORD(ver), HIWORD(ver));
 785   write_function_proto(iface);
 786   fprintf(header, "\n");
 787
 788   /* FIXME: server/client code */
 789 }
 790
 791 void write_interface(type_t *iface)
 792 {
 793   if (is_object(iface->attrs))
 794     write_com_interface(iface);
 795   else
 796     write_rpc_interface(iface);
 797 }