reactos/tools/widl/proxy.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  * Copyright 2004 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #include <string.h>
  31 #include <ctype.h>
  32
  33 #include "widl.h"
  34 #include "utils.h"
  35 #include "parser.h"
  36 #include "header.h"
  37 #include "typegen.h"
  38
  39 #define END_OF_LIST(list)       \
  40   do {                          \
  41     if (list) {                 \
  42       while (NEXT_LINK(list))   \
  43         list = NEXT_LINK(list); \
  44     }                           \
  45   } while(0)
  46
  47 static FILE* proxy;
  48 static int indent = 0;
  49
  50 /* FIXME: support generation of stubless proxies */
  51
  52 static void print_proxy( const char *format, ... )
  53 {
  54   va_list va;
  55   va_start( va, format );
  56   print( proxy, indent, format, va );
  57   va_end( va );
  58 }
  59
  60 static void write_stubdescproto(void)
  61 {
  62   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  63   print_proxy( "\n");
  64 }
  65
  66 static void write_stubdesc(int expr_eval_routines)
  67 {
  68   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  69   indent++;
  70   print_proxy( "0,\n");
  71   print_proxy( "NdrOleAllocate,\n");
  72   print_proxy( "NdrOleFree,\n");
  73   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  74   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  75   print_proxy( "1, /* -error bounds_check flag */\n");
  76   print_proxy( "0x10001, /* Ndr library version */\n");
  77   print_proxy( "0,\n");
  78   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  79   print_proxy( "0,\n");
  80   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  81   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  82   print_proxy( "1,  /* Flags */\n");
  83   print_proxy( "0,  /* Reserved3 */\n");
  84   print_proxy( "0,  /* Reserved4 */\n");
  85   print_proxy( "0   /* Reserved5 */\n");
  86   indent--;
  87   print_proxy( "};\n");
  88   print_proxy( "\n");
  89 }
  90
  91 static void init_proxy(ifref_list_t *ifaces)
  92 {
  93   if (proxy) return;
  94   if(!(proxy = fopen(proxy_name, "w")))
  95     error("Could not open %s for output\n", proxy_name);
  96   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  97   print_proxy( "\n");
  98   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
  99   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ 440\n");
 100   print_proxy( "#endif /* __REDQ_RPCPROXY_H_VERSION__ */\n");
 101   print_proxy( "\n");
 102   print_proxy( "#define __midl_proxy\n");
 103   print_proxy( "#include \"objbase.h\"\n");
 104   print_proxy( "#include \"rpcproxy.h\"\n");
 105   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 106   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 107   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 108   print_proxy( "\n");
 109   print_proxy( "#include \"%s\"\n", header_name);
 110   print_proxy( "\n");
 111   write_formatstringsdecl(proxy, indent, ifaces, need_proxy);
 112   write_stubdescproto();
 113 }
 114
 115 static void clear_output_vars( const var_list_t *args )
 116 {
 117   const var_t *arg;
 118
 119   if (!args) return;
 120   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 121   {
 122     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 123       print_proxy( "if(%s)\n", arg->name );
 124       indent++;
 125       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 126       indent--;
 127     }
 128   }
 129 }
 130
 131 int is_var_ptr(const var_t *v)
 132 {
 133   return is_ptr(v->type);
 134 }
 135
 136 int cant_be_null(const var_t *v)
 137 {
 138   /* Search backwards for the most recent pointer attribute.  */
 139   const attr_list_t *attrs = v->attrs;
 140   const type_t *type = v->type;
 141
 142   if (! attrs && type)
 143   {
 144     attrs = type->attrs;
 145     type = type->ref;
 146   }
 147
 148   while (attrs)
 149   {
 150     int t = get_attrv(attrs, ATTR_POINTERTYPE);
 151
 152     if (t == RPC_FC_FP || t == RPC_FC_OP || t == RPC_FC_UP)
 153       return 0;
 154
 155     if (t == RPC_FC_RP)
 156       return 1;
 157
 158     if (type)
 159     {
 160       attrs = type->attrs;
 161       type = type->ref;
 162     }
 163     else
 164       attrs = NULL;
 165   }
 166
 167   return 1;                             /* Default is RPC_FC_RP.  */
 168 }
 169
 170 static void proxy_check_pointers( const var_list_t *args )
 171 {
 172   const var_t *arg;
 173
 174   if (!args) return;
 175   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 176   {
 177     if (is_var_ptr(arg) && cant_be_null(arg)) {
 178         print_proxy( "if(!%s)\n", arg->name );
 179         indent++;
 180         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 181         indent--;
 182     }
 183   }
 184 }
 185
 186 static void free_variable( const var_t *arg )
 187 {
 188   unsigned int type_offset = arg->type->typestring_offset;
 189   expr_t *iid;
 190   type_t *type = arg->type;
 191   expr_t *size = get_size_is_expr(type, arg->name);
 192
 193   if (size)
 194   {
 195     print_proxy( "_StubMsg.MaxCount = " );
 196     write_expr(proxy, size, 0);
 197     fprintf(proxy, ";\n\n");
 198     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 199     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 200     fprintf(proxy, "(void*)%s );\n", arg->name );
 201     return;
 202   }
 203
 204   switch( type->type )
 205   {
 206   case RPC_FC_BYTE:
 207   case RPC_FC_CHAR:
 208   case RPC_FC_WCHAR:
 209   case RPC_FC_SHORT:
 210   case RPC_FC_USHORT:
 211   case RPC_FC_ENUM16:
 212   case RPC_FC_LONG:
 213   case RPC_FC_ULONG:
 214   case RPC_FC_ENUM32:
 215   case RPC_FC_STRUCT:
 216     break;
 217
 218   case RPC_FC_FP:
 219   case RPC_FC_IP:
 220     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 221     if( iid )
 222     {
 223       print_proxy( "_StubMsg.MaxCount = (unsigned long) " );
 224       write_expr(proxy, iid, 1);
 225       print_proxy( ";\n\n" );
 226     }
 227     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 228     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 229     fprintf(proxy, "(void*)%s );\n", arg->name );
 230     break;
 231
 232   default:
 233     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type->type );
 234   }
 235 }
 236
 237 static void proxy_free_variables( var_list_t *args )
 238 {
 239   const var_t *arg;
 240
 241   if (!args) return;
 242   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 243     if (is_attr(arg->attrs, ATTR_OUT))
 244     {
 245       free_variable( arg );
 246       fprintf(proxy, "\n");
 247     }
 248 }
 249
 250 static void gen_proxy(type_t *iface, const func_t *cur, int idx,
 251                       unsigned int proc_offset)
 252 {
 253   var_t *def = cur->def;
 254   int has_ret = !is_void(get_func_return_type(cur));
 255   int has_full_pointer = is_full_pointer_function(cur);
 256
 257   indent = 0;
 258   write_type_decl_left(proxy, get_func_return_type(cur));
 259   print_proxy( " STDMETHODCALLTYPE %s_", iface->name);
 260   write_name(proxy, def);
 261   print_proxy( "_Proxy(\n");
 262   write_args(proxy, cur->args, iface->name, 1, TRUE);
 263   print_proxy( ")\n");
 264   print_proxy( "{\n");
 265   indent ++;
 266   /* local variables */
 267   if (has_ret) {
 268     print_proxy( "" );
 269     write_type_decl_left(proxy, get_func_return_type(cur));
 270
 271     /* Initialize _RetVal properly in order to avoid compiler warnings */
 272     if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 273       print_proxy(" _RetVal = NULL;\n");
 274     else
 275       print_proxy(" _RetVal = 0;\n");
 276   }
 277   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 278   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n" );
 279   if (has_ret) {
 280     if (decl_indirect(get_func_return_type(cur)))
 281       print_proxy("void *_p_%s = &%s;\n",
 282                  "_RetVal", "_RetVal");
 283   }
 284   print_proxy( "\n");
 285
 286   if (has_full_pointer)
 287     write_full_pointer_init(proxy, indent, cur, FALSE);
 288
 289   /* FIXME: trace */
 290   clear_output_vars( cur->args );
 291
 292   print_proxy( "RpcTryExcept\n" );
 293   print_proxy( "{\n" );
 294   indent++;
 295   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &_StubMsg, &Object_StubDesc, %d);\n", idx);
 296   proxy_check_pointers( cur->args );
 297
 298   print_proxy( "RpcTryFinally\n" );
 299   print_proxy( "{\n" );
 300   indent++;
 301
 302   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_BUFFERSIZE);
 303
 304   print_proxy( "NdrProxyGetBuffer(This, &_StubMsg);\n" );
 305
 306   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_MARSHAL);
 307
 308   print_proxy( "NdrProxySendReceive(This, &_StubMsg);\n" );
 309   fprintf(proxy, "\n");
 310   print_proxy( "_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 311   print_proxy( "_StubMsg.BufferEnd   = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 312
 313   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 314   indent++;
 315   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 316   indent--;
 317   fprintf(proxy, "\n");
 318
 319   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_UNMARSHAL);
 320
 321   if (has_ret)
 322   {
 323       if (decl_indirect(get_func_return_type(cur)))
 324           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 325       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 326           print_proxy("%s = 0;\n", "_RetVal");
 327       write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_UNMARSHAL);
 328   }
 329
 330   indent--;
 331   print_proxy( "}\n");
 332   print_proxy( "RpcFinally\n" );
 333   print_proxy( "{\n" );
 334   indent++;
 335   if (has_full_pointer)
 336     write_full_pointer_free(proxy, indent, cur);
 337   print_proxy( "NdrProxyFreeBuffer(This, &_StubMsg);\n" );
 338   indent--;
 339   print_proxy( "}\n");
 340   print_proxy( "RpcEndFinally\n" );
 341   indent--;
 342   print_proxy( "}\n" );
 343   print_proxy( "RpcExcept(_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 344   print_proxy( "{\n" );
 345   if (has_ret) {
 346     indent++;
 347     proxy_free_variables( cur->args );
 348     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 349     indent--;
 350   }
 351   print_proxy( "}\n" );
 352   print_proxy( "RpcEndExcept\n" );
 353
 354   if (has_ret) {
 355     print_proxy( "return _RetVal;\n" );
 356   }
 357   indent--;
 358   print_proxy( "}\n");
 359   print_proxy( "\n");
 360 }
 361
 362 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 363                      unsigned int proc_offset)
 364 {
 365   var_t *def = cur->def;
 366   const var_t *arg;
 367   int has_ret = !is_void(get_func_return_type(cur));
 368   int has_full_pointer = is_full_pointer_function(cur);
 369
 370   indent = 0;
 371   print_proxy( "void __RPC_STUB %s_", iface->name);
 372   write_name(proxy, def);
 373   print_proxy( "_Stub(\n");
 374   indent++;
 375   print_proxy( "IRpcStubBuffer* This,\n");
 376   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 377   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 378   print_proxy( "DWORD* _pdwStubPhase)\n");
 379   indent--;
 380   print_proxy( "{\n");
 381   indent++;
 382   print_proxy("%s * _This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n", iface->name, iface->name);
 383   print_proxy("MIDL_STUB_MESSAGE _StubMsg;\n");
 384   declare_stub_args( proxy, indent, cur );
 385   fprintf(proxy, "\n");
 386
 387   /* FIXME: trace */
 388
 389   print_proxy("NdrStubInitialize(_pRpcMessage, &_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 390   fprintf(proxy, "\n");
 391
 392   write_parameters_init(proxy, indent, cur);
 393
 394   print_proxy("RpcTryFinally\n");
 395   print_proxy("{\n");
 396   indent++;
 397   if (has_full_pointer)
 398     write_full_pointer_init(proxy, indent, cur, TRUE);
 399   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 400   indent++;
 401   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 402   indent--;
 403   fprintf(proxy, "\n");
 404
 405   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_UNMARSHAL);
 406   fprintf(proxy, "\n");
 407
 408   assign_stub_out_args( proxy, indent, cur );
 409
 410   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 411   fprintf(proxy, "\n");
 412   print_proxy("");
 413   if (has_ret) fprintf(proxy, "_RetVal = ");
 414   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 415   else
 416   {
 417       fprintf(proxy, "_This->lpVtbl->");
 418       write_name(proxy, def);
 419   }
 420   fprintf(proxy, "(_This");
 421
 422   if (cur->args)
 423   {
 424       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 425       {
 426           fprintf(proxy, ", ");
 427           if (arg->type->declarray)
 428               fprintf(proxy, "*");
 429           write_name(proxy, arg);
 430       }
 431   }
 432   fprintf(proxy, ");\n");
 433   fprintf(proxy, "\n");
 434   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 435   fprintf(proxy, "\n");
 436
 437   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_BUFFERSIZE);
 438
 439   if (!is_void(get_func_return_type(cur)))
 440     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_BUFFERSIZE);
 441
 442   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &_StubMsg);\n");
 443
 444   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_MARSHAL);
 445   fprintf(proxy, "\n");
 446
 447   /* marshall the return value */
 448   if (!is_void(get_func_return_type(cur)))
 449     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_MARSHAL);
 450
 451   indent--;
 452   print_proxy("}\n");
 453   print_proxy("RpcFinally\n");
 454   print_proxy("{\n");
 455
 456   write_remoting_arguments(proxy, indent+1, cur, PASS_OUT, PHASE_FREE);
 457
 458   if (has_full_pointer)
 459     write_full_pointer_free(proxy, indent, cur);
 460
 461   print_proxy("}\n");
 462   print_proxy("RpcEndFinally\n");
 463
 464   print_proxy("_pRpcMessage->BufferLength = _StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 465   indent--;
 466
 467   print_proxy("}\n");
 468   print_proxy("\n");
 469 }
 470
 471 static int write_proxy_methods(type_t *iface, int skip)
 472 {
 473   const func_t *cur;
 474   int i = 0;
 475
 476   if (iface->ref) i = write_proxy_methods(iface->ref, iface->ref->ref != NULL);
 477   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 478     var_t *def = cur->def;
 479     if (!is_callas(def->attrs)) {
 480       if (i) fprintf(proxy, ",\n");
 481       print_proxy( "%s%s_", skip ? "0\t/* " : "", iface->name);
 482       write_name(proxy, def);
 483       fprintf(proxy, "_Proxy%s", skip ? " */" : "");
 484       i++;
 485     }
 486   }
 487   return i;
 488 }
 489
 490 static int write_stub_methods(type_t *iface, int skip)
 491 {
 492   const func_t *cur;
 493   int i = 0;
 494
 495   if (iface->ref) i = write_stub_methods(iface->ref, TRUE);
 496   else return i; /* skip IUnknown */
 497
 498   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 499     var_t *def = cur->def;
 500     if (!is_local(def->attrs)) {
 501       if (skip)
 502         print_proxy("STUB_FORWARDING_FUNCTION,\n");
 503       else {
 504         if (i) fprintf(proxy,",\n");
 505         print_proxy( "%s_", iface->name);
 506         write_name(proxy, def);
 507         fprintf(proxy, "_Stub");
 508         i++;
 509       }
 510     }
 511   }
 512   return i;
 513 }
 514
 515 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 516 {
 517   int midx = -1, stubs;
 518   const func_t *cur;
 519
 520   if (!iface->funcs) return;
 521
 522   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 523
 524   fprintf(proxy, "/*****************************************************************************\n");
 525   fprintf(proxy, " * %s interface\n", iface->name);
 526   fprintf(proxy, " */\n");
 527   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 528   {
 529     const var_t *def = cur->def;
 530     if (!is_local(def->attrs)) {
 531       const var_t *cas = is_callas(def->attrs);
 532       const char *cname = cas ? cas->name : NULL;
 533       int idx = cur->idx;
 534       if (cname) {
 535           const func_t *m;
 536           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 537               if (!strcmp(m->def->name, cname))
 538               {
 539                   idx = m->idx;
 540                   break;
 541               }
 542       }
 543       gen_proxy(iface, cur, idx, *proc_offset);
 544       gen_stub(iface, cur, cname, *proc_offset);
 545       *proc_offset += get_size_procformatstring_func( cur );
 546       if (midx == -1) midx = idx;
 547       else if (midx != idx) error("method index mismatch in write_proxy\n");
 548       midx++;
 549     }
 550   }
 551
 552   /* proxy vtable */
 553   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", midx, iface->name);
 554   print_proxy( "{\n");
 555   indent++;
 556   print_proxy( "{\n", iface->name);
 557   indent++;
 558   print_proxy( "&IID_%s,\n", iface->name);
 559   indent--;
 560   print_proxy( "},\n");
 561   print_proxy( "{\n");
 562   indent++;
 563   write_proxy_methods(iface, FALSE);
 564   fprintf(proxy, "\n");
 565   indent--;
 566   print_proxy( "}\n");
 567   indent--;
 568   print_proxy( "};\n");
 569   fprintf(proxy, "\n\n");
 570
 571   /* stub vtable */
 572   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 573   print_proxy( "{\n");
 574   indent++;
 575   stubs = write_stub_methods(iface, FALSE);
 576   fprintf(proxy, "\n");
 577   indent--;
 578   fprintf(proxy, "};\n");
 579   print_proxy( "\n");
 580   print_proxy( "static const CInterfaceStubVtbl _%sStubVtbl =\n", iface->name);
 581   print_proxy( "{\n");
 582   indent++;
 583   print_proxy( "{\n");
 584   indent++;
 585   print_proxy( "&IID_%s,\n", iface->name);
 586   print_proxy( "0,\n");
 587   print_proxy( "%d,\n", stubs+3);
 588   print_proxy( "&%s_table[-3],\n", iface->name);
 589   indent--;
 590   print_proxy( "},\n", iface->name);
 591   print_proxy( "{\n");
 592   indent++;
 593   print_proxy( "CStdStubBuffer_METHODS\n");
 594   indent--;
 595   print_proxy( "}\n");
 596   indent--;
 597   print_proxy( "};\n");
 598   print_proxy( "\n");
 599 }
 600
 601 static int does_any_iface(const ifref_list_t *ifaces, type_pred_t pred)
 602 {
 603   ifref_t *ir;
 604
 605   if (ifaces)
 606     LIST_FOR_EACH_ENTRY(ir, ifaces, ifref_t, entry)
 607       if (pred(ir->iface))
 608         return TRUE;
 609
 610   return FALSE;
 611 }
 612
 613 int need_proxy(const type_t *iface)
 614 {
 615   return is_object(iface->attrs) && !is_local(iface->attrs);
 616 }
 617
 618 int need_stub(const type_t *iface)
 619 {
 620   return !is_object(iface->attrs) && !is_local(iface->attrs);
 621 }
 622
 623 int need_proxy_file(const ifref_list_t *ifaces)
 624 {
 625   return does_any_iface(ifaces, need_proxy);
 626 }
 627
 628 int need_stub_files(const ifref_list_t *ifaces)
 629 {
 630   return does_any_iface(ifaces, need_stub);
 631 }
 632
 633 void write_proxies(ifref_list_t *ifaces)
 634 {
 635   ifref_t *cur;
 636   int expr_eval_routines;
 637   char *file_id = proxy_token;
 638   int c;
 639   unsigned int proc_offset = 0;
 640
 641   if (!do_proxies) return;
 642   if (do_everything && !need_proxy_file(ifaces)) return;
 643
 644   init_proxy(ifaces);
 645   if(!proxy) return;
 646
 647   if (ifaces)
 648       LIST_FOR_EACH_ENTRY( cur, ifaces, ifref_t, entry )
 649           if (need_proxy(cur->iface))
 650               write_proxy(cur->iface, &proc_offset);
 651
 652   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 653   if (expr_eval_routines)
 654       write_expr_eval_routine_list(proxy, proxy_token);
 655   write_user_quad_list(proxy);
 656   write_stubdesc(expr_eval_routines);
 657
 658   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 659   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 660   print_proxy( "#endif\n");
 661   print_proxy( "\n");
 662   write_procformatstring(proxy, ifaces, need_proxy);
 663   write_typeformatstring(proxy, ifaces, need_proxy);
 664
 665   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 666   fprintf(proxy, "{\n");
 667   if (ifaces)
 668       LIST_FOR_EACH_ENTRY( cur, ifaces, ifref_t, entry )
 669           if(cur->iface->ref && cur->iface->funcs && need_proxy(cur->iface))
 670               fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", cur->iface->name);
 671
 672   fprintf(proxy, "    0\n");
 673   fprintf(proxy, "};\n");
 674   fprintf(proxy, "\n");
 675
 676   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 677   fprintf(proxy, "{\n");
 678   if (ifaces)
 679       LIST_FOR_EACH_ENTRY( cur, ifaces, ifref_t, entry )
 680           if(cur->iface->ref && cur->iface->funcs && need_proxy(cur->iface))
 681               fprintf(proxy, "    (const CInterfaceStubVtbl*)&_%sStubVtbl,\n", cur->iface->name);
 682   fprintf(proxy, "    0\n");
 683   fprintf(proxy, "};\n");
 684   fprintf(proxy, "\n");
 685
 686   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 687   fprintf(proxy, "{\n");
 688   if (ifaces)
 689       LIST_FOR_EACH_ENTRY( cur, ifaces, ifref_t, entry )
 690           if(cur->iface->ref && cur->iface->funcs && need_proxy(cur->iface))
 691               fprintf(proxy, "    \"%s\",\n", cur->iface->name);
 692   fprintf(proxy, "    0\n");
 693   fprintf(proxy, "};\n");
 694   fprintf(proxy, "\n");
 695
 696   fprintf(proxy, "#define _%s_CHECK_IID(n) IID_GENERIC_CHECK_IID(_%s, pIID, n)\n", file_id, file_id);
 697   fprintf(proxy, "\n");
 698   fprintf(proxy, "int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 699   fprintf(proxy, "{\n");
 700   c = 0;
 701   if (ifaces)
 702       LIST_FOR_EACH_ENTRY( cur, ifaces, ifref_t, entry )
 703           if(cur->iface->ref && cur->iface->funcs && need_proxy(cur->iface))
 704           {
 705               fprintf(proxy, "    if (!_%s_CHECK_IID(%d))\n", file_id, c);
 706               fprintf(proxy, "    {\n");
 707               fprintf(proxy, "        *pIndex = %d;\n", c);
 708               fprintf(proxy, "        return 1;\n");
 709               fprintf(proxy, "    }\n");
 710               c++;
 711           }
 712   fprintf(proxy, "    return 0;\n");
 713   fprintf(proxy, "}\n");
 714   fprintf(proxy, "\n");
 715
 716   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo =\n", file_id);
 717   fprintf(proxy, "{\n");
 718   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)&_%s_ProxyVtblList,\n", file_id);
 719   fprintf(proxy, "    (const PCInterfaceStubVtblList*)&_%s_StubVtblList,\n", file_id);
 720   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 721   fprintf(proxy, "    0,\n");
 722   fprintf(proxy, "    &_%s_IID_Lookup,\n", file_id);
 723   fprintf(proxy, "    %d,\n", c);
 724   fprintf(proxy, "    1,\n");
 725   fprintf(proxy, "    0,\n");
 726   fprintf(proxy, "    0,\n");
 727   fprintf(proxy, "    0,\n");
 728   fprintf(proxy, "    0\n");
 729   fprintf(proxy, "};\n");
 730
 731   fclose(proxy);
 732 }