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 <ctype.h>
  31
  32 #include "widl.h"
  33 #include "utils.h"
  34 #include "parser.h"
  35 #include "header.h"
  36 #include "expr.h"
  37 #include "typetree.h"
  38
  39 typedef struct _user_type_t generic_handle_t;
  40
  41 static int indentation = 0;
  42 user_type_list_t user_type_list = LIST_INIT(user_type_list);
  43 static context_handle_list_t context_handle_list = LIST_INIT(context_handle_list);
  44 static struct list generic_handle_list = LIST_INIT(generic_handle_list);
  45
  46 static void indent(FILE *h, int delta)
  47 {
  48   int c;
  49   if (delta < 0) indentation += delta;
  50   for (c=0; c<indentation; c++) fprintf(h, "    ");
  51   if (delta > 0) indentation += delta;
  52 }
  53
  54 int is_ptrchain_attr(const var_t *var, enum attr_type t)
  55 {
  56     if (is_attr(var->attrs, t))
  57         return 1;
  58     else
  59     {
  60         type_t *type = var->type;
  61         for (;;)
  62         {
  63             if (is_attr(type->attrs, t))
  64                 return 1;
  65             else if (type_is_alias(type))
  66                 type = type_alias_get_aliasee(type);
  67             else if (is_ptr(type))
  68                 type = type_pointer_get_ref(type);
  69             else return 0;
  70         }
  71     }
  72 }
  73
  74 int is_aliaschain_attr(const type_t *type, enum attr_type attr)
  75 {
  76     const type_t *t = type;
  77     for (;;)
  78     {
  79         if (is_attr(t->attrs, attr))
  80             return 1;
  81         else if (type_is_alias(t))
  82             t = type_alias_get_aliasee(t);
  83         else return 0;
  84     }
  85 }
  86
  87 int is_attr(const attr_list_t *list, enum attr_type t)
  88 {
  89     const attr_t *attr;
  90     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  91         if (attr->type == t) return 1;
  92     return 0;
  93 }
  94
  95 void *get_attrp(const attr_list_t *list, enum attr_type t)
  96 {
  97     const attr_t *attr;
  98     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
  99         if (attr->type == t) return attr->u.pval;
 100     return NULL;
 101 }
 102
 103 unsigned int get_attrv(const attr_list_t *list, enum attr_type t)
 104 {
 105     const attr_t *attr;
 106     if (list) LIST_FOR_EACH_ENTRY( attr, list, const attr_t, entry )
 107         if (attr->type == t) return attr->u.ival;
 108     return 0;
 109 }
 110
 111 int is_void(const type_t *t)
 112 {
 113     return type_get_type(t) == TYPE_VOID;
 114 }
 115
 116 int is_conformant_array(const type_t *t)
 117 {
 118     return is_array(t) && type_array_has_conformance(t);
 119 }
 120
 121 void write_guid(FILE *f, const char *guid_prefix, const char *name, const UUID *uuid)
 122 {
 123   if (!uuid) return;
 124   fprintf(f, "DEFINE_GUID(%s_%s, 0x%08x, 0x%04x, 0x%04x, 0x%02x,0x%02x, 0x%02x,"
 125         "0x%02x,0x%02x,0x%02x,0x%02x,0x%02x);\n",
 126         guid_prefix, name, uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0],
 127         uuid->Data4[1], uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5],
 128         uuid->Data4[6], uuid->Data4[7]);
 129 }
 130
 131 const char *get_name(const var_t *v)
 132 {
 133     static char buffer[256];
 134
 135     if (is_attr( v->attrs, ATTR_PROPGET ))
 136         strcpy( buffer, "get_" );
 137     else if (is_attr( v->attrs, ATTR_PROPPUT ))
 138         strcpy( buffer, "put_" );
 139     else if (is_attr( v->attrs, ATTR_PROPPUTREF ))
 140         strcpy( buffer, "putref_" );
 141     else
 142         buffer[0] = 0;
 143     strcat( buffer, v->name );
 144     return buffer;
 145 }
 146
 147 static void write_field(FILE *h, var_t *v)
 148 {
 149   if (!v) return;
 150   if (v->type) {
 151     indent(h, 0);
 152     write_type_def_or_decl(h, v->type, TRUE, v->name);
 153     fprintf(h, ";\n");
 154   }
 155 }
 156
 157 static void write_fields(FILE *h, var_list_t *fields)
 158 {
 159     var_t *v;
 160     if (!fields) return;
 161     LIST_FOR_EACH_ENTRY( v, fields, var_t, entry ) write_field(h, v);
 162 }
 163
 164 static void write_enums(FILE *h, var_list_t *enums)
 165 {
 166   var_t *v;
 167   if (!enums) return;
 168   LIST_FOR_EACH_ENTRY( v, enums, var_t, entry )
 169   {
 170     if (v->name) {
 171       indent(h, 0);
 172       fprintf(h, "%s", get_name(v));
 173       if (v->eval) {
 174         fprintf(h, " = ");
 175         write_expr(h, v->eval, 0, 1, NULL, NULL, "");
 176       }
 177     }
 178     if (list_next( enums, &v->entry )) fprintf(h, ",\n");
 179   }
 180   fprintf(h, "\n");
 181 }
 182
 183 int needs_space_after(type_t *t)
 184 {
 185   return (type_is_alias(t) ||
 186           (!is_ptr(t) && (!is_array(t) || !type_array_is_decl_as_ptr(t) || t->name)));
 187 }
 188
 189 void write_type_left(FILE *h, type_t *t, int declonly)
 190 {
 191   if (!h) return;
 192
 193   if (is_attr(t->attrs, ATTR_CONST) &&
 194       (type_is_alias(t) || !is_ptr(t)))
 195     fprintf(h, "const ");
 196
 197   if (type_is_alias(t)) fprintf(h, "%s", t->name);
 198   else {
 199     switch (type_get_type_detect_alias(t)) {
 200       case TYPE_ENUM:
 201         if (!declonly && t->defined && !t->written) {
 202           if (t->name) fprintf(h, "enum %s {\n", t->name);
 203           else fprintf(h, "enum {\n");
 204           t->written = TRUE;
 205           indentation++;
 206           write_enums(h, type_enum_get_values(t));
 207           indent(h, -1);
 208           fprintf(h, "}");
 209         }
 210         else fprintf(h, "enum %s", t->name ? t->name : "");
 211         break;
 212       case TYPE_STRUCT:
 213       case TYPE_ENCAPSULATED_UNION:
 214         if (!declonly && t->defined && !t->written) {
 215           if (t->name) fprintf(h, "struct %s {\n", t->name);
 216           else fprintf(h, "struct {\n");
 217           t->written = TRUE;
 218           indentation++;
 219           if (type_get_type(t) != TYPE_STRUCT)
 220             write_fields(h, type_encapsulated_union_get_fields(t));
 221           else
 222             write_fields(h, type_struct_get_fields(t));
 223           indent(h, -1);
 224           fprintf(h, "}");
 225         }
 226         else fprintf(h, "struct %s", t->name ? t->name : "");
 227         break;
 228       case TYPE_UNION:
 229         if (!declonly && t->defined && !t->written) {
 230           if (t->name) fprintf(h, "union %s {\n", t->name);
 231           else fprintf(h, "union {\n");
 232           t->written = TRUE;
 233           indentation++;
 234           write_fields(h, type_union_get_cases(t));
 235           indent(h, -1);
 236           fprintf(h, "}");
 237         }
 238         else fprintf(h, "union %s", t->name ? t->name : "");
 239         break;
 240       case TYPE_POINTER:
 241         write_type_left(h, type_pointer_get_ref(t), declonly);
 242         fprintf(h, "%s*", needs_space_after(type_pointer_get_ref(t)) ? " " : "");
 243         if (is_attr(t->attrs, ATTR_CONST)) fprintf(h, "const ");
 244         break;
 245       case TYPE_ARRAY:
 246         if (t->name && type_array_is_decl_as_ptr(t))
 247           fprintf(h, "%s", t->name);
 248         else
 249         {
 250           write_type_left(h, type_array_get_element(t), declonly);
 251           if (type_array_is_decl_as_ptr(t))
 252             fprintf(h, "%s*", needs_space_after(type_array_get_element(t)) ? " " : "");
 253         }
 254         break;
 255       case TYPE_BASIC:
 256         if (type_basic_get_type(t) != TYPE_BASIC_INT32 &&
 257             type_basic_get_type(t) != TYPE_BASIC_INT64 &&
 258             type_basic_get_type(t) != TYPE_BASIC_HYPER)
 259         {
 260           if (type_basic_get_sign(t) < 0) fprintf(h, "signed ");
 261           else if (type_basic_get_sign(t) > 0) fprintf(h, "unsigned ");
 262         }
 263         switch (type_basic_get_type(t))
 264         {
 265         case TYPE_BASIC_INT8: fprintf(h, "small"); break;
 266         case TYPE_BASIC_INT16: fprintf(h, "short"); break;
 267         case TYPE_BASIC_INT: fprintf(h, "int"); break;
 268         case TYPE_BASIC_INT3264: fprintf(h, "__int3264"); break;
 269         case TYPE_BASIC_BYTE: fprintf(h, "byte"); break;
 270         case TYPE_BASIC_CHAR: fprintf(h, "char"); break;
 271         case TYPE_BASIC_WCHAR: fprintf(h, "wchar_t"); break;
 272         case TYPE_BASIC_FLOAT: fprintf(h, "float"); break;
 273         case TYPE_BASIC_DOUBLE: fprintf(h, "double"); break;
 274         case TYPE_BASIC_ERROR_STATUS_T: fprintf(h, "error_status_t"); break;
 275         case TYPE_BASIC_HANDLE: fprintf(h, "handle_t"); break;
 276         case TYPE_BASIC_INT32:
 277           if (type_basic_get_sign(t) > 0)
 278             fprintf(h, "ULONG");
 279           else
 280             fprintf(h, "LONG");
 281           break;
 282         case TYPE_BASIC_INT64:
 283           if (type_basic_get_sign(t) > 0)
 284             fprintf(h, "UINT64");
 285           else
 286             fprintf(h, "INT64");
 287           break;
 288         case TYPE_BASIC_HYPER:
 289           if (type_basic_get_sign(t) > 0)
 290             fprintf(h, "MIDL_uhyper");
 291           else
 292             fprintf(h, "hyper");
 293           break;
 294         }
 295         break;
 296       case TYPE_INTERFACE:
 297       case TYPE_MODULE:
 298       case TYPE_COCLASS:
 299         fprintf(h, "%s", t->name);
 300         break;
 301       case TYPE_VOID:
 302         fprintf(h, "void");
 303         break;
 304       case TYPE_BITFIELD:
 305         write_type_left(h, type_bitfield_get_field(t), declonly);
 306         break;
 307       case TYPE_ALIAS:
 308       case TYPE_FUNCTION:
 309         /* handled elsewhere */
 310         assert(0);
 311         break;
 312     }
 313   }
 314 }
 315
 316 void write_type_right(FILE *h, type_t *t, int is_field)
 317 {
 318   if (!h) return;
 319
 320   switch (type_get_type(t))
 321   {
 322   case TYPE_ARRAY:
 323     if (!type_array_is_decl_as_ptr(t))
 324     {
 325       if (is_conformant_array(t))
 326       {
 327         fprintf(h, "[%s]", is_field ? "1" : "");
 328         t = type_array_get_element(t);
 329       }
 330       for ( ;
 331            type_get_type(t) == TYPE_ARRAY && !type_array_is_decl_as_ptr(t);
 332            t = type_array_get_element(t))
 333         fprintf(h, "[%u]", type_array_get_dim(t));
 334     }
 335     break;
 336   case TYPE_BITFIELD:
 337     fprintf(h, " : %u", type_bitfield_get_bits(t)->cval);
 338     break;
 339   case TYPE_VOID:
 340   case TYPE_BASIC:
 341   case TYPE_ENUM:
 342   case TYPE_STRUCT:
 343   case TYPE_ENCAPSULATED_UNION:
 344   case TYPE_UNION:
 345   case TYPE_ALIAS:
 346   case TYPE_MODULE:
 347   case TYPE_COCLASS:
 348   case TYPE_FUNCTION:
 349   case TYPE_INTERFACE:
 350   case TYPE_POINTER:
 351     break;
 352   }
 353 }
 354
 355 static void write_type_v(FILE *h, type_t *t, int is_field, int declonly, const char *name)
 356 {
 357   type_t *pt = NULL;
 358   int ptr_level = 0;
 359
 360   if (!h) return;
 361
 362   if (t) {
 363     for (pt = t; is_ptr(pt); pt = type_pointer_get_ref(pt), ptr_level++)
 364       ;
 365
 366     if (type_get_type_detect_alias(pt) == TYPE_FUNCTION) {
 367       int i;
 368       const char *callconv = get_attrp(pt->attrs, ATTR_CALLCONV);
 369       if (!callconv) callconv = "";
 370       if (is_attr(pt->attrs, ATTR_INLINE)) fprintf(h, "inline ");
 371       write_type_left(h, type_function_get_rettype(pt), declonly);
 372       fputc(' ', h);
 373       if (ptr_level) fputc('(', h);
 374       fprintf(h, "%s ", callconv);
 375       for (i = 0; i < ptr_level; i++)
 376         fputc('*', h);
 377     } else
 378       write_type_left(h, t, declonly);
 379   }
 380
 381   if (name) fprintf(h, "%s%s", !t || needs_space_after(t) ? " " : "", name );
 382
 383   if (t) {
 384     if (type_get_type_detect_alias(pt) == TYPE_FUNCTION) {
 385       const var_list_t *args = type_function_get_args(pt);
 386
 387       if (ptr_level) fputc(')', h);
 388       fputc('(', h);
 389       if (args)
 390           write_args(h, args, NULL, 0, FALSE);
 391       else
 392           fprintf(h, "void");
 393       fputc(')', h);
 394     } else
 395       write_type_right(h, t, is_field);
 396   }
 397 }
 398
 399 void write_type_def_or_decl(FILE *f, type_t *t, int field, const char *name)
 400 {
 401   write_type_v(f, t, field, FALSE, name);
 402 }
 403
 404 void write_type_decl(FILE *f, type_t *t, const char *name)
 405 {
 406   write_type_v(f, t, FALSE, TRUE, name);
 407 }
 408
 409 void write_type_decl_left(FILE *f, type_t *t)
 410 {
 411   write_type_left(f, t, TRUE);
 412 }
 413
 414 static int user_type_registered(const char *name)
 415 {
 416   user_type_t *ut;
 417   LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
 418     if (!strcmp(name, ut->name))
 419       return 1;
 420   return 0;
 421 }
 422
 423 static int context_handle_registered(const char *name)
 424 {
 425   context_handle_t *ch;
 426   LIST_FOR_EACH_ENTRY(ch, &context_handle_list, context_handle_t, entry)
 427     if (!strcmp(name, ch->name))
 428       return 1;
 429   return 0;
 430 }
 431
 432 static int generic_handle_registered(const char *name)
 433 {
 434   generic_handle_t *gh;
 435   LIST_FOR_EACH_ENTRY(gh, &generic_handle_list, generic_handle_t, entry)
 436     if (!strcmp(name, gh->name))
 437       return 1;
 438   return 0;
 439 }
 440
 441 /* check for types which require additional prototypes to be generated in the
 442  * header */
 443 void check_for_additional_prototype_types(const var_list_t *list)
 444 {
 445   const var_t *v;
 446
 447   if (!list) return;
 448   LIST_FOR_EACH_ENTRY( v, list, const var_t, entry )
 449   {
 450     type_t *type = v->type;
 451     if (!type) continue;
 452     for (;;) {
 453       const char *name = type->name;
 454       if (type->user_types_registered) break;
 455       type->user_types_registered = 1;
 456       if (is_attr(type->attrs, ATTR_CONTEXTHANDLE)) {
 457         if (!context_handle_registered(name))
 458         {
 459           context_handle_t *ch = xmalloc(sizeof(*ch));
 460           ch->name = xstrdup(name);
 461           list_add_tail(&context_handle_list, &ch->entry);
 462         }
 463         /* don't carry on parsing fields within this type */
 464         break;
 465       }
 466       if ((type_get_type(type) != TYPE_BASIC ||
 467            type_basic_get_type(type) != TYPE_BASIC_HANDLE) &&
 468           is_attr(type->attrs, ATTR_HANDLE)) {
 469         if (!generic_handle_registered(name))
 470         {
 471           generic_handle_t *gh = xmalloc(sizeof(*gh));
 472           gh->name = xstrdup(name);
 473           list_add_tail(&generic_handle_list, &gh->entry);
 474         }
 475         /* don't carry on parsing fields within this type */
 476         break;
 477       }
 478       if (is_attr(type->attrs, ATTR_WIREMARSHAL)) {
 479         if (!user_type_registered(name))
 480         {
 481           user_type_t *ut = xmalloc(sizeof *ut);
 482           ut->name = xstrdup(name);
 483           list_add_tail(&user_type_list, &ut->entry);
 484         }
 485         /* don't carry on parsing fields within this type as we are already
 486          * using a wire marshaled type */
 487         break;
 488       }
 489       else if (type_is_complete(type))
 490       {
 491         var_list_t *vars;
 492         switch (type_get_type_detect_alias(type))
 493         {
 494         case TYPE_ENUM:
 495           vars = type_enum_get_values(type);
 496           break;
 497         case TYPE_STRUCT:
 498           vars = type_struct_get_fields(type);
 499           break;
 500         case TYPE_UNION:
 501           vars = type_union_get_cases(type);
 502           break;
 503         default:
 504           vars = NULL;
 505           break;
 506         }
 507         check_for_additional_prototype_types(vars);
 508       }
 509
 510       if (type_is_alias(type))
 511         type = type_alias_get_aliasee(type);
 512       else if (is_ptr(type))
 513         type = type_pointer_get_ref(type);
 514       else if (is_array(type))
 515         type = type_array_get_element(type);
 516       else
 517         break;
 518     }
 519   }
 520 }
 521
 522 static void write_user_types(FILE *header)
 523 {
 524   user_type_t *ut;
 525   LIST_FOR_EACH_ENTRY(ut, &user_type_list, user_type_t, entry)
 526   {
 527     const char *name = ut->name;
 528     fprintf(header, "ULONG           __RPC_USER %s_UserSize     (ULONG *, ULONG, %s *);\n", name, name);
 529     fprintf(header, "unsigned char * __RPC_USER %s_UserMarshal  (ULONG *, unsigned char *, %s *);\n", name, name);
 530     fprintf(header, "unsigned char * __RPC_USER %s_UserUnmarshal(ULONG *, unsigned char *, %s *);\n", name, name);
 531     fprintf(header, "void            __RPC_USER %s_UserFree     (ULONG *, %s *);\n", name, name);
 532   }
 533 }
 534
 535 static void write_context_handle_rundowns(FILE *header)
 536 {
 537   context_handle_t *ch;
 538   LIST_FOR_EACH_ENTRY(ch, &context_handle_list, context_handle_t, entry)
 539   {
 540     const char *name = ch->name;
 541     fprintf(header, "void __RPC_USER %s_rundown(%s);\n", name, name);
 542   }
 543 }
 544
 545 static void write_generic_handle_routines(FILE *header)
 546 {
 547   generic_handle_t *gh;
 548   LIST_FOR_EACH_ENTRY(gh, &generic_handle_list, generic_handle_t, entry)
 549   {
 550     const char *name = gh->name;
 551     fprintf(header, "handle_t __RPC_USER %s_bind(%s);\n", name, name);
 552     fprintf(header, "void __RPC_USER %s_unbind(%s, handle_t);\n", name, name);
 553   }
 554 }
 555
 556 static void write_typedef(FILE *header, type_t *type)
 557 {
 558   fprintf(header, "typedef ");
 559   write_type_def_or_decl(header, type_alias_get_aliasee(type), FALSE, type->name);
 560   fprintf(header, ";\n");
 561 }
 562
 563 int is_const_decl(const var_t *var)
 564 {
 565   const type_t *t;
 566   /* strangely, MIDL accepts a const attribute on any pointer in the
 567   * declaration to mean that data isn't being instantiated. this appears
 568   * to be a bug, but there is no benefit to being incompatible with MIDL,
 569   * so we'll do the same thing */
 570   for (t = var->type; ; )
 571   {
 572     if (is_attr(t->attrs, ATTR_CONST))
 573       return TRUE;
 574     else if (is_ptr(t))
 575       t = type_pointer_get_ref(t);
 576     else break;
 577   }
 578   return FALSE;
 579 }
 580
 581 static void write_declaration(FILE *header, const var_t *v)
 582 {
 583   if (is_const_decl(v) && v->eval)
 584   {
 585     fprintf(header, "#define %s (", v->name);
 586     write_expr(header, v->eval, 0, 1, NULL, NULL, "");
 587     fprintf(header, ")\n\n");
 588   }
 589   else
 590   {
 591     switch (v->stgclass)
 592     {
 593       case STG_NONE:
 594       case STG_REGISTER: /* ignored */
 595         break;
 596       case STG_STATIC:
 597         fprintf(header, "static ");
 598         break;
 599       case STG_EXTERN:
 600         fprintf(header, "extern ");
 601         break;
 602     }
 603     write_type_def_or_decl(header, v->type, FALSE, v->name);
 604     fprintf(header, ";\n\n");
 605   }
 606 }
 607
 608 static void write_library(FILE *header, const typelib_t *typelib)
 609 {
 610   const UUID *uuid = get_attrp(typelib->attrs, ATTR_UUID);
 611   fprintf(header, "\n");
 612   write_guid(header, "LIBID", typelib->name, uuid);
 613   fprintf(header, "\n");
 614 }
 615
 616
 617 const var_t* get_explicit_handle_var(const var_t *func)
 618 {
 619     const var_t* var;
 620
 621     if (!type_get_function_args(func->type))
 622         return NULL;
 623
 624     LIST_FOR_EACH_ENTRY( var, type_get_function_args(func->type), const var_t, entry )
 625     {
 626         const type_t *type = var->type;
 627         if (type_get_type(type) == TYPE_BASIC && type_basic_get_type(type) == TYPE_BASIC_HANDLE)
 628             return var;
 629     }
 630
 631     return NULL;
 632 }
 633
 634 const type_t* get_explicit_generic_handle_type(const var_t* var)
 635 {
 636     const type_t *t;
 637     for (t = var->type;
 638          is_ptr(t) || type_is_alias(t);
 639          t = type_is_alias(t) ? type_alias_get_aliasee(t) : type_pointer_get_ref(t))
 640         if ((type_get_type_detect_alias(t) != TYPE_BASIC || type_basic_get_type(t) != TYPE_BASIC_HANDLE) &&
 641             is_attr(t->attrs, ATTR_HANDLE))
 642             return t;
 643     return NULL;
 644 }
 645
 646 const var_t* get_explicit_generic_handle_var(const var_t *func)
 647 {
 648     const var_t* var;
 649
 650     if (!type_get_function_args(func->type))
 651         return NULL;
 652
 653     LIST_FOR_EACH_ENTRY( var, type_get_function_args(func->type), const var_t, entry )
 654         if (get_explicit_generic_handle_type(var))
 655             return var;
 656
 657     return NULL;
 658 }
 659
 660 const var_t* get_context_handle_var(const var_t *func)
 661 {
 662     const var_t* var;
 663
 664     if (!type_get_function_args(func->type))
 665         return NULL;
 666
 667     LIST_FOR_EACH_ENTRY( var, type_get_function_args(func->type), const var_t, entry )
 668         if (is_attr(var->attrs, ATTR_IN) && is_context_handle(var->type))
 669             return var;
 670
 671     return NULL;
 672 }
 673
 674 int has_out_arg_or_return(const var_t *func)
 675 {
 676     const var_t *var;
 677
 678     if (!is_void(type_function_get_rettype(func->type)))
 679         return 1;
 680
 681     if (!type_get_function_args(func->type))
 682         return 0;
 683
 684     LIST_FOR_EACH_ENTRY( var, type_get_function_args(func->type), const var_t, entry )
 685         if (is_attr(var->attrs, ATTR_OUT))
 686             return 1;
 687
 688     return 0;
 689 }
 690
 691
 692 /********** INTERFACES **********/
 693
 694 int is_object(const type_t *iface)
 695 {
 696     const attr_t *attr;
 697     if (type_is_defined(iface) && type_iface_get_inherit(iface))
 698         return 1;
 699     if (iface->attrs) LIST_FOR_EACH_ENTRY( attr, iface->attrs, const attr_t, entry )
 700         if (attr->type == ATTR_OBJECT || attr->type == ATTR_ODL) return 1;
 701     return 0;
 702 }
 703
 704 int is_local(const attr_list_t *a)
 705 {
 706   return is_attr(a, ATTR_LOCAL);
 707 }
 708
 709 const var_t *is_callas(const attr_list_t *a)
 710 {
 711   return get_attrp(a, ATTR_CALLAS);
 712 }
 713
 714 static void write_method_macro(FILE *header, const type_t *iface, const char *name)
 715 {
 716   const statement_t *stmt;
 717   int first_iface = 1;
 718
 719   if (type_iface_get_inherit(iface))
 720     write_method_macro(header, type_iface_get_inherit(iface), name);
 721
 722   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
 723   {
 724     const var_t *func = stmt->u.var;
 725
 726     if (first_iface)
 727     {
 728       fprintf(header, "/*** %s methods ***/\n", iface->name);
 729       first_iface = 0;
 730     }
 731
 732     if (!is_callas(func->attrs)) {
 733       const var_t *arg;
 734
 735       fprintf(header, "#define %s_%s(This", name, get_name(func));
 736       if (type_get_function_args(func->type))
 737           LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 738               fprintf(header, ",%s", arg->name);
 739       fprintf(header, ") ");
 740
 741       fprintf(header, "(This)->lpVtbl->%s(This", get_name(func));
 742       if (type_get_function_args(func->type))
 743           LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 744               fprintf(header, ",%s", arg->name);
 745       fprintf(header, ")\n");
 746     }
 747   }
 748 }
 749
 750 void write_args(FILE *h, const var_list_t *args, const char *name, int method, int do_indent)
 751 {
 752   const var_t *arg;
 753   int count = 0;
 754
 755   if (do_indent)
 756   {
 757       indentation++;
 758       indent(h, 0);
 759   }
 760   if (method == 1) {
 761     fprintf(h, "%s* This", name);
 762     count++;
 763   }
 764   if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry ) {
 765     if (count) {
 766         if (do_indent)
 767         {
 768             fprintf(h, ",\n");
 769             indent(h, 0);
 770         }
 771         else fprintf(h, ",");
 772     }
 773     write_type_decl(h, arg->type, arg->name);
 774     count++;
 775   }
 776   if (do_indent) indentation--;
 777 }
 778
 779 static void write_cpp_method_def(FILE *header, const type_t *iface)
 780 {
 781   const statement_t *stmt;
 782
 783   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
 784   {
 785     const var_t *func = stmt->u.var;
 786     if (!is_callas(func->attrs)) {
 787       const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 788       if (!callconv) callconv = "";
 789       indent(header, 0);
 790       fprintf(header, "virtual ");
 791       write_type_decl_left(header, type_function_get_rettype(func->type));
 792       fprintf(header, " %s %s(\n", callconv, get_name(func));
 793       write_args(header, type_get_function_args(func->type), iface->name, 2, TRUE);
 794       fprintf(header, ") = 0;\n");
 795       fprintf(header, "\n");
 796     }
 797   }
 798 }
 799
 800 static void do_write_c_method_def(FILE *header, const type_t *iface, const char *name)
 801 {
 802   const statement_t *stmt;
 803   int first_iface = 1;
 804
 805   if (type_iface_get_inherit(iface))
 806     do_write_c_method_def(header, type_iface_get_inherit(iface), name);
 807
 808   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
 809   {
 810     const var_t *func = stmt->u.var;
 811     if (first_iface) {
 812       indent(header, 0);
 813       fprintf(header, "/*** %s methods ***/\n", iface->name);
 814       first_iface = 0;
 815     }
 816     if (!is_callas(func->attrs)) {
 817       const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 818       if (!callconv) callconv = "";
 819       indent(header, 0);
 820       write_type_decl_left(header, type_function_get_rettype(func->type));
 821       fprintf(header, " (%s *%s)(\n", callconv, get_name(func));
 822       write_args(header, type_get_function_args(func->type), name, 1, TRUE);
 823       fprintf(header, ");\n");
 824       fprintf(header, "\n");
 825     }
 826   }
 827 }
 828
 829 static void write_c_method_def(FILE *header, const type_t *iface)
 830 {
 831   do_write_c_method_def(header, iface, iface->name);
 832 }
 833
 834 static void write_c_disp_method_def(FILE *header, const type_t *iface)
 835 {
 836   do_write_c_method_def(header, type_iface_get_inherit(iface), iface->name);
 837 }
 838
 839 static void write_method_proto(FILE *header, const type_t *iface)
 840 {
 841   const statement_t *stmt;
 842
 843   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface))
 844   {
 845     const var_t *func = stmt->u.var;
 846
 847     if (!is_local(func->attrs)) {
 848       const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 849       if (!callconv) callconv = "";
 850       /* proxy prototype */
 851       write_type_decl_left(header, type_function_get_rettype(func->type));
 852       fprintf(header, " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 853       write_args(header, type_get_function_args(func->type), iface->name, 1, TRUE);
 854       fprintf(header, ");\n");
 855       /* stub prototype */
 856       fprintf(header, "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 857       fprintf(header, "    IRpcStubBuffer* This,\n");
 858       fprintf(header, "    IRpcChannelBuffer* pRpcChannelBuffer,\n");
 859       fprintf(header, "    PRPC_MESSAGE pRpcMessage,\n");
 860       fprintf(header, "    DWORD* pdwStubPhase);\n");
 861     }
 862   }
 863 }
 864
 865 static void write_locals(FILE *fp, const type_t *iface, int body)
 866 {
 867   static const char comment[]
 868     = "/* WIDL-generated stub.  You must provide an implementation for this.  */";
 869   const statement_t *stmt;
 870
 871   if (!is_object(iface))
 872     return;
 873
 874   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 875     const var_t *func = stmt->u.var;
 876     const var_t *cas = is_callas(func->attrs);
 877
 878     if (cas) {
 879       const statement_t *stmt2 = NULL;
 880       STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface))
 881         if (!strcmp(stmt2->u.var->name, cas->name))
 882           break;
 883       if (&stmt2->entry != type_iface_get_stmts(iface)) {
 884         const var_t *m = stmt2->u.var;
 885         /* proxy prototype - use local prototype */
 886         write_type_decl_left(fp, type_function_get_rettype(m->type));
 887         fprintf(fp, " CALLBACK %s_%s_Proxy(\n", iface->name, get_name(m));
 888         write_args(fp, type_get_function_args(m->type), iface->name, 1, TRUE);
 889         fprintf(fp, ")");
 890         if (body) {
 891           type_t *rt = type_function_get_rettype(m->type);
 892           fprintf(fp, "\n{\n");
 893           fprintf(fp, "    %s\n", comment);
 894           if (rt->name && strcmp(rt->name, "HRESULT") == 0)
 895             fprintf(fp, "    return E_NOTIMPL;\n");
 896           else if (type_get_type(rt) != TYPE_VOID) {
 897             fprintf(fp, "    ");
 898             write_type_decl(fp, rt, "rv");
 899             fprintf(fp, ";\n");
 900             fprintf(fp, "    memset(&rv, 0, sizeof rv);\n");
 901             fprintf(fp, "    return rv;\n");
 902           }
 903           fprintf(fp, "}\n\n");
 904         }
 905         else
 906           fprintf(fp, ";\n");
 907         /* stub prototype - use remotable prototype */
 908         write_type_decl_left(fp, type_function_get_rettype(func->type));
 909         fprintf(fp, " __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(m));
 910         write_args(fp, type_get_function_args(func->type), iface->name, 1, TRUE);
 911         fprintf(fp, ")");
 912         if (body)
 913           /* Remotable methods must all return HRESULTs.  */
 914           fprintf(fp, "\n{\n    %s\n    return E_NOTIMPL;\n}\n\n", comment);
 915         else
 916           fprintf(fp, ";\n");
 917       }
 918       else
 919         error_loc("invalid call_as attribute (%s -> %s)\n", func->name, cas->name);
 920     }
 921   }
 922 }
 923
 924 static void write_local_stubs_stmts(FILE *local_stubs, const statement_list_t *stmts)
 925 {
 926   const statement_t *stmt;
 927   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 928   {
 929     if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 930       write_locals(local_stubs, stmt->u.type, TRUE);
 931     else if (stmt->type == STMT_LIBRARY)
 932       write_local_stubs_stmts(local_stubs, stmt->u.lib->stmts);
 933   }
 934 }
 935
 936 void write_local_stubs(const statement_list_t *stmts)
 937 {
 938   FILE *local_stubs;
 939
 940   if (!local_stubs_name) return;
 941
 942   local_stubs = fopen(local_stubs_name, "w");
 943   if (!local_stubs) {
 944     error("Could not open %s for output\n", local_stubs_name);
 945     return;
 946   }
 947   fprintf(local_stubs, "/* call_as/local stubs for %s */\n\n", input_name);
 948   fprintf(local_stubs, "#include <objbase.h>\n");
 949   fprintf(local_stubs, "#include \"%s\"\n\n", header_name);
 950
 951   write_local_stubs_stmts(local_stubs, stmts);
 952
 953   fclose(local_stubs);
 954 }
 955
 956 static void write_function_proto(FILE *header, const type_t *iface, const var_t *fun, const char *prefix)
 957 {
 958   const char *callconv = get_attrp(fun->type->attrs, ATTR_CALLCONV);
 959
 960   /* FIXME: do we need to handle call_as? */
 961   write_type_decl_left(header, type_function_get_rettype(fun->type));
 962   fprintf(header, " ");
 963   if (callconv) fprintf(header, "%s ", callconv);
 964   fprintf(header, "%s%s(\n", prefix, get_name(fun));
 965   if (type_get_function_args(fun->type))
 966     write_args(header, type_get_function_args(fun->type), iface->name, 0, TRUE);
 967   else
 968     fprintf(header, "    void");
 969   fprintf(header, ");\n\n");
 970 }
 971
 972 static void write_forward(FILE *header, type_t *iface)
 973 {
 974   fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", iface->name);
 975   fprintf(header, "#define __%s_FWD_DEFINED__\n", iface->name);
 976   fprintf(header, "typedef interface %s %s;\n", iface->name, iface->name);
 977   fprintf(header, "#endif\n\n" );
 978 }
 979
 980 static void write_iface_guid(FILE *header, const type_t *iface)
 981 {
 982   const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 983   write_guid(header, "IID", iface->name, uuid);
 984 }
 985
 986 static void write_dispiface_guid(FILE *header, const type_t *iface)
 987 {
 988   const UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 989   write_guid(header, "DIID", iface->name, uuid);
 990 }
 991
 992 static void write_coclass_guid(FILE *header, const type_t *cocl)
 993 {
 994   const UUID *uuid = get_attrp(cocl->attrs, ATTR_UUID);
 995   write_guid(header, "CLSID", cocl->name, uuid);
 996 }
 997
 998 static void write_com_interface_start(FILE *header, const type_t *iface)
 999 {
1000   int dispinterface = is_attr(iface->attrs, ATTR_DISPINTERFACE);
1001   fprintf(header, "/*****************************************************************************\n");
1002   fprintf(header, " * %s %sinterface\n", iface->name, dispinterface ? "disp" : "");
1003   fprintf(header, " */\n");
1004   fprintf(header,"#ifndef __%s_%sINTERFACE_DEFINED__\n", iface->name, dispinterface ? "DISP" : "");
1005   fprintf(header,"#define __%s_%sINTERFACE_DEFINED__\n\n", iface->name, dispinterface ? "DISP" : "");
1006 }
1007
1008 static void write_com_interface_end(FILE *header, type_t *iface)
1009 {
1010   int dispinterface = is_attr(iface->attrs, ATTR_DISPINTERFACE);
1011   if (dispinterface)
1012     write_dispiface_guid(header, iface);
1013   else
1014     write_iface_guid(header, iface);
1015   /* C++ interface */
1016   fprintf(header, "#if defined(__cplusplus) && !defined(CINTERFACE)\n");
1017   if (type_iface_get_inherit(iface))
1018   {
1019     fprintf(header, "interface %s : public %s\n", iface->name,
1020             type_iface_get_inherit(iface)->name);
1021     fprintf(header, "{\n");
1022   }
1023   else
1024   {
1025     fprintf(header, "interface %s\n", iface->name);
1026     fprintf(header, "{\n");
1027     fprintf(header, "    BEGIN_INTERFACE\n");
1028     fprintf(header, "\n");
1029   }
1030   /* dispinterfaces don't have real functions, so don't write C++ functions for
1031    * them */
1032   if (!dispinterface)
1033   {
1034     indentation++;
1035     write_cpp_method_def(header, iface);
1036     indentation--;
1037   }
1038   if (!type_iface_get_inherit(iface))
1039     fprintf(header, "    END_INTERFACE\n");
1040   fprintf(header, "};\n");
1041   fprintf(header, "#else\n");
1042   /* C interface */
1043   fprintf(header, "typedef struct %sVtbl {\n", iface->name);
1044   indentation++;
1045   fprintf(header, "    BEGIN_INTERFACE\n");
1046   fprintf(header, "\n");
1047   if (dispinterface)
1048     write_c_disp_method_def(header, iface);
1049   else
1050     write_c_method_def(header, iface);
1051   indentation--;
1052   fprintf(header, "    END_INTERFACE\n");
1053   fprintf(header, "} %sVtbl;\n", iface->name);
1054   fprintf(header, "interface %s {\n", iface->name);
1055   fprintf(header, "    CONST_VTBL %sVtbl* lpVtbl;\n", iface->name);
1056   fprintf(header, "};\n");
1057   fprintf(header, "\n");
1058   fprintf(header, "#ifdef COBJMACROS\n");
1059   /* dispinterfaces don't have real functions, so don't write macros for them,
1060    * only for the interface this interface inherits from, i.e. IDispatch */
1061   write_method_macro(header, dispinterface ? type_iface_get_inherit(iface) : iface, iface->name);
1062   fprintf(header, "#endif\n");
1063   fprintf(header, "\n");
1064   fprintf(header, "#endif\n");
1065   fprintf(header, "\n");
1066   /* dispinterfaces don't have real functions, so don't write prototypes for
1067    * them */
1068   if (!dispinterface)
1069   {
1070     write_method_proto(header, iface);
1071     write_locals(header, iface, FALSE);
1072     fprintf(header, "\n");
1073   }
1074   fprintf(header,"#endif  /* __%s_%sINTERFACE_DEFINED__ */\n\n", iface->name, dispinterface ? "DISP" : "");
1075 }
1076
1077 static void write_rpc_interface_start(FILE *header, const type_t *iface)
1078 {
1079   unsigned int ver = get_attrv(iface->attrs, ATTR_VERSION);
1080   const char *var = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
1081   static int allocate_written = 0;
1082
1083   if (!allocate_written)
1084   {
1085     allocate_written = 1;
1086     fprintf(header, "void * __RPC_USER MIDL_user_allocate(SIZE_T);\n");
1087     fprintf(header, "void __RPC_USER MIDL_user_free(void *);\n\n");
1088   }
1089
1090   fprintf(header, "/*****************************************************************************\n");
1091   fprintf(header, " * %s interface (v%d.%d)\n", iface->name, MAJORVERSION(ver), MINORVERSION(ver));
1092   fprintf(header, " */\n");
1093   fprintf(header,"#ifndef __%s_INTERFACE_DEFINED__\n", iface->name);
1094   fprintf(header,"#define __%s_INTERFACE_DEFINED__\n\n", iface->name);
1095   if (var) fprintf(header, "extern handle_t %s;\n", var);
1096   if (old_names)
1097   {
1098       fprintf(header, "extern RPC_IF_HANDLE %s%s_ClientIfHandle;\n", prefix_client, iface->name);
1099       fprintf(header, "extern RPC_IF_HANDLE %s%s_ServerIfHandle;\n", prefix_server, iface->name);
1100   }
1101   else
1102   {
1103       fprintf(header, "extern RPC_IF_HANDLE %s%s_v%d_%d_c_ifspec;\n",
1104               prefix_client, iface->name, MAJORVERSION(ver), MINORVERSION(ver));
1105       fprintf(header, "extern RPC_IF_HANDLE %s%s_v%d_%d_s_ifspec;\n",
1106               prefix_server, iface->name, MAJORVERSION(ver), MINORVERSION(ver));
1107   }
1108 }
1109
1110 static void write_rpc_interface_end(FILE *header, const type_t *iface)
1111 {
1112   fprintf(header,"\n#endif  /* __%s_INTERFACE_DEFINED__ */\n\n", iface->name);
1113 }
1114
1115 static void write_coclass(FILE *header, type_t *cocl)
1116 {
1117   fprintf(header, "/*****************************************************************************\n");
1118   fprintf(header, " * %s coclass\n", cocl->name);
1119   fprintf(header, " */\n\n");
1120   write_coclass_guid(header, cocl);
1121   fprintf(header, "\n");
1122 }
1123
1124 static void write_coclass_forward(FILE *header, type_t *cocl)
1125 {
1126   fprintf(header, "#ifndef __%s_FWD_DEFINED__\n", cocl->name);
1127   fprintf(header, "#define __%s_FWD_DEFINED__\n", cocl->name);
1128   fprintf(header, "typedef struct %s %s;\n", cocl->name, cocl->name);
1129   fprintf(header, "#endif /* defined __%s_FWD_DEFINED__ */\n\n", cocl->name );
1130 }
1131
1132 static void write_import(FILE *header, const char *fname)
1133 {
1134   char *hname, *p;
1135
1136   hname = dup_basename(fname, ".idl");
1137   p = hname + strlen(hname) - 2;
1138   if (p <= hname || strcmp( p, ".h" )) strcat(hname, ".h");
1139
1140   fprintf(header, "#include <%s>\n", hname);
1141   free(hname);
1142 }
1143
1144 static void write_imports(FILE *header, const statement_list_t *stmts)
1145 {
1146   const statement_t *stmt;
1147   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
1148   {
1149     switch (stmt->type)
1150     {
1151       case STMT_TYPE:
1152         if (type_get_type(stmt->u.type) == TYPE_INTERFACE)
1153           write_imports(header, type_iface_get_stmts(stmt->u.type));
1154         break;
1155       case STMT_TYPEREF:
1156       case STMT_IMPORTLIB:
1157         /* not included in header */
1158         break;
1159       case STMT_IMPORT:
1160         write_import(header, stmt->u.str);
1161         break;
1162       case STMT_TYPEDEF:
1163       case STMT_MODULE:
1164       case STMT_CPPQUOTE:
1165       case STMT_DECLARATION:
1166         /* not processed here */
1167         break;
1168       case STMT_LIBRARY:
1169         write_imports(header, stmt->u.lib->stmts);
1170         break;
1171     }
1172   }
1173 }
1174
1175 static void write_forward_decls(FILE *header, const statement_list_t *stmts)
1176 {
1177   const statement_t *stmt;
1178   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
1179   {
1180     switch (stmt->type)
1181     {
1182       case STMT_TYPE:
1183         if (type_get_type(stmt->u.type) == TYPE_INTERFACE)
1184         {
1185           if (is_object(stmt->u.type) || is_attr(stmt->u.type->attrs, ATTR_DISPINTERFACE))
1186             write_forward(header, stmt->u.type);
1187         }
1188         else if (type_get_type(stmt->u.type) == TYPE_COCLASS)
1189           write_coclass_forward(header, stmt->u.type);
1190         break;
1191       case STMT_TYPEREF:
1192       case STMT_IMPORTLIB:
1193         /* not included in header */
1194         break;
1195       case STMT_IMPORT:
1196       case STMT_TYPEDEF:
1197       case STMT_MODULE:
1198       case STMT_CPPQUOTE:
1199       case STMT_DECLARATION:
1200         /* not processed here */
1201         break;
1202       case STMT_LIBRARY:
1203         write_forward_decls(header, stmt->u.lib->stmts);
1204         break;
1205     }
1206   }
1207 }
1208
1209 static void write_header_stmts(FILE *header, const statement_list_t *stmts, const type_t *iface, int ignore_funcs)
1210 {
1211   const statement_t *stmt;
1212   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
1213   {
1214     switch (stmt->type)
1215     {
1216       case STMT_TYPE:
1217         if (type_get_type(stmt->u.type) == TYPE_INTERFACE)
1218         {
1219           type_t *iface = stmt->u.type;
1220           if (is_attr(stmt->u.type->attrs, ATTR_DISPINTERFACE) || is_object(stmt->u.type))
1221           {
1222             write_com_interface_start(header, iface);
1223             write_header_stmts(header, type_iface_get_stmts(iface), stmt->u.type, TRUE);
1224             write_com_interface_end(header, iface);
1225           }
1226           else
1227           {
1228             write_rpc_interface_start(header, iface);
1229             write_header_stmts(header, type_iface_get_stmts(iface), iface, FALSE);
1230             write_rpc_interface_end(header, iface);
1231           }
1232         }
1233         else if (type_get_type(stmt->u.type) == TYPE_COCLASS)
1234           write_coclass(header, stmt->u.type);
1235         else
1236         {
1237           write_type_def_or_decl(header, stmt->u.type, FALSE, NULL);
1238           fprintf(header, ";\n\n");
1239         }
1240         break;
1241       case STMT_TYPEREF:
1242         /* FIXME: shouldn't write out forward declarations for undefined
1243         * interfaces but a number of our IDL files depend on this */
1244         if (type_get_type(stmt->u.type) == TYPE_INTERFACE && !stmt->u.type->written)
1245           write_forward(header, stmt->u.type);
1246         break;
1247       case STMT_IMPORTLIB:
1248       case STMT_MODULE:
1249         /* not included in header */
1250         break;
1251       case STMT_IMPORT:
1252         /* not processed here */
1253         break;
1254       case STMT_TYPEDEF:
1255       {
1256         const type_list_t *type_entry = stmt->u.type_list;
1257         for (; type_entry; type_entry = type_entry->next)
1258           write_typedef(header, type_entry->type);
1259         break;
1260       }
1261       case STMT_LIBRARY:
1262         write_library(header, stmt->u.lib);
1263         write_header_stmts(header, stmt->u.lib->stmts, NULL, FALSE);
1264         break;
1265       case STMT_CPPQUOTE:
1266         fprintf(header, "%s\n", stmt->u.str);
1267         break;
1268       case STMT_DECLARATION:
1269         if (iface && type_get_type(stmt->u.var->type) == TYPE_FUNCTION)
1270         {
1271           if (!ignore_funcs)
1272           {
1273             int prefixes_differ = strcmp(prefix_client, prefix_server);
1274
1275             if (prefixes_differ)
1276             {
1277               fprintf(header, "/* client prototype */\n");
1278               write_function_proto(header, iface, stmt->u.var, prefix_client);
1279               fprintf(header, "/* server prototype */\n");
1280             }
1281             write_function_proto(header, iface, stmt->u.var, prefix_server);
1282           }
1283         }
1284         else
1285           write_declaration(header, stmt->u.var);
1286         break;
1287     }
1288   }
1289 }
1290
1291 void write_header(const statement_list_t *stmts)
1292 {
1293   FILE *header;
1294
1295   if (!do_header) return;
1296
1297   if(!(header = fopen(header_name, "w"))) {
1298     error("Could not open %s for output\n", header_name);
1299     return;
1300   }
1301   fprintf(header, "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n\n", PACKAGE_VERSION, input_name);
1302   fprintf(header, "#include <rpc.h>\n" );
1303   fprintf(header, "#include <rpcndr.h>\n\n" );
1304
1305   fprintf(header, "#ifndef __WIDL_%s\n", header_token);
1306   fprintf(header, "#define __WIDL_%s\n\n", header_token);
1307   start_cplusplus_guard(header);
1308
1309   fprintf(header, "/* Headers for imported files */\n\n");
1310   write_imports(header, stmts);
1311   fprintf(header, "\n");
1312
1313   /* FIXME: should be before imported file includes */
1314   fprintf(header, "/* Forward declarations */\n\n");
1315   write_forward_decls(header, stmts);
1316   fprintf(header, "\n");
1317
1318   write_header_stmts(header, stmts, NULL, FALSE);
1319
1320   fprintf(header, "/* Begin additional prototypes for all interfaces */\n");
1321   fprintf(header, "\n");
1322   write_user_types(header);
1323   write_generic_handle_routines(header);
1324   write_context_handle_rundowns(header);
1325   fprintf(header, "\n");
1326   fprintf(header, "/* End additional prototypes */\n");
1327   fprintf(header, "\n");
1328
1329   end_cplusplus_guard(header);
1330   fprintf(header, "#endif /* __WIDL_%s */\n", header_token);
1331
1332   fclose(header);
1333 }