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 #include "expr.h"
  39
  40 #define END_OF_LIST(list)       \
  41   do {                          \
  42     if (list) {                 \
  43       while (NEXT_LINK(list))   \
  44         list = NEXT_LINK(list); \
  45     }                           \
  46   } while(0)
  47
  48 static FILE* proxy;
  49 static int indent = 0;
  50
  51 /* FIXME: support generation of stubless proxies */
  52
  53 static void print_proxy( const char *format, ... )
  54 {
  55   va_list va;
  56   va_start( va, format );
  57   print( proxy, indent, format, va );
  58   va_end( va );
  59 }
  60
  61 static void write_stubdescproto(void)
  62 {
  63   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  64   print_proxy( "\n");
  65 }
  66
  67 static void write_stubdesc(int expr_eval_routines)
  68 {
  69   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  70   indent++;
  71   print_proxy( "0,\n");
  72   print_proxy( "NdrOleAllocate,\n");
  73   print_proxy( "NdrOleFree,\n");
  74   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  75   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  76   print_proxy( "1, /* -error bounds_check flag */\n");
  77   print_proxy( "0x10001, /* Ndr library version */\n");
  78   print_proxy( "0,\n");
  79   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  80   print_proxy( "0,\n");
  81   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  82   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  83   print_proxy( "1,  /* Flags */\n");
  84   print_proxy( "0,  /* Reserved3 */\n");
  85   print_proxy( "0,  /* Reserved4 */\n");
  86   print_proxy( "0   /* Reserved5 */\n");
  87   indent--;
  88   print_proxy( "};\n");
  89   print_proxy( "\n");
  90 }
  91
  92 static void init_proxy(const statement_list_t *stmts)
  93 {
  94   if (proxy) return;
  95   if(!(proxy = fopen(proxy_name, "w")))
  96     error("Could not open %s for output\n", proxy_name);
  97   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  98   print_proxy( "\n");
  99   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 100   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ 440\n");
 101   print_proxy( "#endif /* __REDQ_RPCPROXY_H_VERSION__ */\n");
 102   print_proxy( "\n");
 103   print_proxy( "#define __midl_proxy\n");
 104   print_proxy( "#include \"objbase.h\"\n");
 105   print_proxy( "#include \"rpcproxy.h\"\n");
 106   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 107   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 108   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 109   print_proxy( "\n");
 110   print_proxy( "#include \"%s\"\n", header_name);
 111   print_proxy( "\n");
 112   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 113   write_stubdescproto();
 114 }
 115
 116 static void clear_output_vars( const var_list_t *args )
 117 {
 118   const var_t *arg;
 119
 120   if (!args) return;
 121   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 122   {
 123     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 124       print_proxy( "if(%s)\n", arg->name );
 125       indent++;
 126       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 127       indent--;
 128     }
 129   }
 130 }
 131
 132 int is_var_ptr(const var_t *v)
 133 {
 134   return is_ptr(v->type);
 135 }
 136
 137 int cant_be_null(const var_t *v)
 138 {
 139   /* Search backwards for the most recent pointer attribute.  */
 140   const attr_list_t *attrs = v->attrs;
 141   const type_t *type = v->type;
 142
 143   if (! attrs && type)
 144   {
 145     attrs = type->attrs;
 146     type = type->ref;
 147   }
 148
 149   while (attrs)
 150   {
 151     int t = get_attrv(attrs, ATTR_POINTERTYPE);
 152
 153     if (t == RPC_FC_FP || t == RPC_FC_OP || t == RPC_FC_UP)
 154       return 0;
 155
 156     if (t == RPC_FC_RP)
 157       return 1;
 158
 159     if (type)
 160     {
 161       attrs = type->attrs;
 162       type = type->ref;
 163     }
 164     else
 165       attrs = NULL;
 166   }
 167
 168   return 1;                             /* Default is RPC_FC_RP.  */
 169 }
 170
 171 static void proxy_check_pointers( const var_list_t *args )
 172 {
 173   const var_t *arg;
 174
 175   if (!args) return;
 176   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 177   {
 178     if (is_var_ptr(arg) && cant_be_null(arg)) {
 179         print_proxy( "if(!%s)\n", arg->name );
 180         indent++;
 181         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 182         indent--;
 183     }
 184   }
 185 }
 186
 187 static void free_variable( const var_t *arg )
 188 {
 189   unsigned int type_offset = arg->type->typestring_offset;
 190   expr_t *iid;
 191   type_t *type = arg->type;
 192   expr_t *size = get_size_is_expr(type, arg->name);
 193
 194   if (size)
 195   {
 196     print_proxy( "_StubMsg.MaxCount = " );
 197     write_expr(proxy, size, 0, 1, NULL, NULL);
 198     fprintf(proxy, ";\n\n");
 199     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 200     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 201     fprintf(proxy, "(void*)%s );\n", arg->name );
 202     return;
 203   }
 204
 205   switch( type->type )
 206   {
 207   case RPC_FC_BYTE:
 208   case RPC_FC_CHAR:
 209   case RPC_FC_WCHAR:
 210   case RPC_FC_SHORT:
 211   case RPC_FC_USHORT:
 212   case RPC_FC_ENUM16:
 213   case RPC_FC_LONG:
 214   case RPC_FC_ULONG:
 215   case RPC_FC_ENUM32:
 216   case RPC_FC_STRUCT:
 217     break;
 218
 219   case RPC_FC_FP:
 220   case RPC_FC_IP:
 221     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 222     if( iid )
 223     {
 224       print_proxy( "_StubMsg.MaxCount = (unsigned long) " );
 225       write_expr(proxy, iid, 1, 1, NULL, NULL);
 226       print_proxy( ";\n\n" );
 227     }
 228     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 229     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 230     fprintf(proxy, "(void*)%s );\n", arg->name );
 231     break;
 232
 233   default:
 234     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type->type );
 235   }
 236 }
 237
 238 static void proxy_free_variables( var_list_t *args )
 239 {
 240   const var_t *arg;
 241
 242   if (!args) return;
 243   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 244     if (is_attr(arg->attrs, ATTR_OUT))
 245     {
 246       free_variable( arg );
 247       fprintf(proxy, "\n");
 248     }
 249 }
 250
 251 static void gen_proxy(type_t *iface, const func_t *cur, int idx,
 252                       unsigned int proc_offset)
 253 {
 254   var_t *def = cur->def;
 255   int has_ret = !is_void(get_func_return_type(cur));
 256   int has_full_pointer = is_full_pointer_function(cur);
 257   const char *callconv = get_attrp(def->type->attrs, ATTR_CALLCONV);
 258   if (!callconv) callconv = "";
 259
 260   indent = 0;
 261   write_type_decl_left(proxy, get_func_return_type(cur));
 262   print_proxy( " %s %s_", callconv, iface->name);
 263   write_name(proxy, def);
 264   print_proxy( "_Proxy(\n");
 265   write_args(proxy, cur->args, iface->name, 1, TRUE);
 266   print_proxy( ")\n");
 267   print_proxy( "{\n");
 268   indent ++;
 269   /* local variables */
 270   if (has_ret) {
 271     print_proxy( "" );
 272     write_type_decl_left(proxy, get_func_return_type(cur));
 273     print_proxy( " _RetVal;\n");
 274   }
 275   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 276   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n" );
 277   if (has_ret) {
 278     if (decl_indirect(get_func_return_type(cur)))
 279       print_proxy("void *_p_%s = &%s;\n",
 280                  "_RetVal", "_RetVal");
 281   }
 282   print_proxy( "\n");
 283
 284   if (has_full_pointer)
 285     write_full_pointer_init(proxy, indent, cur, FALSE);
 286
 287   /* FIXME: trace */
 288   clear_output_vars( cur->args );
 289
 290   print_proxy( "RpcTryExcept\n" );
 291   print_proxy( "{\n" );
 292   indent++;
 293   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &_StubMsg, &Object_StubDesc, %d);\n", idx);
 294   proxy_check_pointers( cur->args );
 295
 296   print_proxy( "RpcTryFinally\n" );
 297   print_proxy( "{\n" );
 298   indent++;
 299
 300   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_BUFFERSIZE);
 301
 302   print_proxy( "NdrProxyGetBuffer(This, &_StubMsg);\n" );
 303
 304   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_MARSHAL);
 305
 306   print_proxy( "NdrProxySendReceive(This, &_StubMsg);\n" );
 307   fprintf(proxy, "\n");
 308   print_proxy( "_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 309   print_proxy( "_StubMsg.BufferEnd   = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 310
 311   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 312   indent++;
 313   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 314   indent--;
 315   fprintf(proxy, "\n");
 316
 317   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_UNMARSHAL);
 318
 319   if (has_ret)
 320   {
 321       if (decl_indirect(get_func_return_type(cur)))
 322           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 323       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 324           print_proxy("%s = 0;\n", "_RetVal");
 325       write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_UNMARSHAL);
 326   }
 327
 328   indent--;
 329   print_proxy( "}\n");
 330   print_proxy( "RpcFinally\n" );
 331   print_proxy( "{\n" );
 332   indent++;
 333   if (has_full_pointer)
 334     write_full_pointer_free(proxy, indent, cur);
 335   print_proxy( "NdrProxyFreeBuffer(This, &_StubMsg);\n" );
 336   indent--;
 337   print_proxy( "}\n");
 338   print_proxy( "RpcEndFinally\n" );
 339   indent--;
 340   print_proxy( "}\n" );
 341   print_proxy( "RpcExcept(_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 342   print_proxy( "{\n" );
 343   if (has_ret) {
 344     indent++;
 345     proxy_free_variables( cur->args );
 346     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 347     indent--;
 348   }
 349   print_proxy( "}\n" );
 350   print_proxy( "RpcEndExcept\n" );
 351
 352   if (has_ret) {
 353     print_proxy( "return _RetVal;\n" );
 354   }
 355   indent--;
 356   print_proxy( "}\n");
 357   print_proxy( "\n");
 358 }
 359
 360 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 361                      unsigned int proc_offset)
 362 {
 363   var_t *def = cur->def;
 364   const var_t *arg;
 365   int has_ret = !is_void(get_func_return_type(cur));
 366   int has_full_pointer = is_full_pointer_function(cur);
 367
 368   indent = 0;
 369   print_proxy( "void __RPC_STUB %s_", iface->name);
 370   write_name(proxy, def);
 371   print_proxy( "_Stub(\n");
 372   indent++;
 373   print_proxy( "IRpcStubBuffer* This,\n");
 374   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 375   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 376   print_proxy( "DWORD* _pdwStubPhase)\n");
 377   indent--;
 378   print_proxy( "{\n");
 379   indent++;
 380   print_proxy("%s * _This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n", iface->name, iface->name);
 381   print_proxy("MIDL_STUB_MESSAGE _StubMsg;\n");
 382   declare_stub_args( proxy, indent, cur );
 383   fprintf(proxy, "\n");
 384
 385   /* FIXME: trace */
 386
 387   print_proxy("NdrStubInitialize(_pRpcMessage, &_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 388   fprintf(proxy, "\n");
 389
 390   write_parameters_init(proxy, indent, cur);
 391
 392   print_proxy("RpcTryFinally\n");
 393   print_proxy("{\n");
 394   indent++;
 395   if (has_full_pointer)
 396     write_full_pointer_init(proxy, indent, cur, TRUE);
 397   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 398   indent++;
 399   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 400   indent--;
 401   fprintf(proxy, "\n");
 402
 403   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_UNMARSHAL);
 404   fprintf(proxy, "\n");
 405
 406   assign_stub_out_args( proxy, indent, cur );
 407
 408   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 409   fprintf(proxy, "\n");
 410   print_proxy("");
 411   if (has_ret) fprintf(proxy, "_RetVal = ");
 412   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 413   else
 414   {
 415       fprintf(proxy, "_This->lpVtbl->");
 416       write_name(proxy, def);
 417   }
 418   fprintf(proxy, "(_This");
 419
 420   if (cur->args)
 421   {
 422       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 423       {
 424           fprintf(proxy, ", ");
 425           if (arg->type->declarray)
 426               fprintf(proxy, "*");
 427           write_name(proxy, arg);
 428       }
 429   }
 430   fprintf(proxy, ");\n");
 431   fprintf(proxy, "\n");
 432   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 433   fprintf(proxy, "\n");
 434
 435   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_BUFFERSIZE);
 436
 437   if (!is_void(get_func_return_type(cur)))
 438     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_BUFFERSIZE);
 439
 440   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &_StubMsg);\n");
 441
 442   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_MARSHAL);
 443   fprintf(proxy, "\n");
 444
 445   /* marshall the return value */
 446   if (!is_void(get_func_return_type(cur)))
 447     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_MARSHAL);
 448
 449   indent--;
 450   print_proxy("}\n");
 451   print_proxy("RpcFinally\n");
 452   print_proxy("{\n");
 453
 454   write_remoting_arguments(proxy, indent+1, cur, PASS_OUT, PHASE_FREE);
 455
 456   if (has_full_pointer)
 457     write_full_pointer_free(proxy, indent, cur);
 458
 459   print_proxy("}\n");
 460   print_proxy("RpcEndFinally\n");
 461
 462   print_proxy("_pRpcMessage->BufferLength = _StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 463   indent--;
 464
 465   print_proxy("}\n");
 466   print_proxy("\n");
 467 }
 468
 469 static int write_proxy_methods(type_t *iface)
 470 {
 471   const func_t *cur;
 472   int i = 0;
 473
 474   if (iface->ref) i = write_proxy_methods(iface->ref);
 475   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 476     var_t *def = cur->def;
 477     if (!is_callas(def->attrs)) {
 478       if (i) fprintf(proxy, ",\n");
 479       print_proxy( "%s_", iface->name);
 480       write_name(proxy, def);
 481       fprintf(proxy, "_Proxy");
 482       i++;
 483     }
 484   }
 485   return i;
 486 }
 487
 488 static int write_stub_methods(type_t *iface)
 489 {
 490   const func_t *cur;
 491   int i = 0;
 492
 493   if (iface->ref) i = write_stub_methods(iface->ref);
 494   else return i; /* skip IUnknown */
 495
 496   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 497     var_t *def = cur->def;
 498     if (!is_local(def->attrs)) {
 499       if (i) fprintf(proxy,",\n");
 500       print_proxy( "%s_", iface->name);
 501       write_name(proxy, def);
 502       fprintf(proxy, "_Stub");
 503       i++;
 504     }
 505   }
 506   return i;
 507 }
 508
 509 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 510 {
 511   int midx = -1, stubs;
 512   const func_t *cur;
 513
 514   if (!iface->funcs) return;
 515
 516   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 517
 518   fprintf(proxy, "/*****************************************************************************\n");
 519   fprintf(proxy, " * %s interface\n", iface->name);
 520   fprintf(proxy, " */\n");
 521   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 522   {
 523     const var_t *def = cur->def;
 524     if (!is_local(def->attrs)) {
 525       const var_t *cas = is_callas(def->attrs);
 526       const char *cname = cas ? cas->name : NULL;
 527       int idx = cur->idx;
 528       if (cname) {
 529           const func_t *m;
 530           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 531               if (!strcmp(m->def->name, cname))
 532               {
 533                   idx = m->idx;
 534                   break;
 535               }
 536       }
 537       gen_proxy(iface, cur, idx, *proc_offset);
 538       gen_stub(iface, cur, cname, *proc_offset);
 539       *proc_offset += get_size_procformatstring_func( cur );
 540       if (midx == -1) midx = idx;
 541       else if (midx != idx) error("method index mismatch in write_proxy\n");
 542       midx++;
 543     }
 544   }
 545
 546   /* proxy vtable */
 547   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", midx, iface->name);
 548   print_proxy( "{\n");
 549   indent++;
 550   print_proxy( "{\n", iface->name);
 551   indent++;
 552   print_proxy( "&IID_%s,\n", iface->name);
 553   indent--;
 554   print_proxy( "},\n");
 555   print_proxy( "{\n");
 556   indent++;
 557   write_proxy_methods(iface);
 558   fprintf(proxy, "\n");
 559   indent--;
 560   print_proxy( "}\n");
 561   indent--;
 562   print_proxy( "};\n");
 563   fprintf(proxy, "\n\n");
 564
 565   /* stub vtable */
 566   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 567   print_proxy( "{\n");
 568   indent++;
 569   stubs = write_stub_methods(iface);
 570   fprintf(proxy, "\n");
 571   indent--;
 572   fprintf(proxy, "};\n");
 573   print_proxy( "\n");
 574   print_proxy( "static const CInterfaceStubVtbl _%sStubVtbl =\n", iface->name);
 575   print_proxy( "{\n");
 576   indent++;
 577   print_proxy( "{\n");
 578   indent++;
 579   print_proxy( "&IID_%s,\n", iface->name);
 580   print_proxy( "0,\n");
 581   print_proxy( "%d,\n", stubs+3);
 582   print_proxy( "&%s_table[-3],\n", iface->name);
 583   indent--;
 584   print_proxy( "},\n", iface->name);
 585   print_proxy( "{\n");
 586   indent++;
 587   print_proxy( "CStdStubBuffer_METHODS\n");
 588   indent--;
 589   print_proxy( "}\n");
 590   indent--;
 591   print_proxy( "};\n");
 592   print_proxy( "\n");
 593 }
 594
 595 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 596 {
 597   const statement_t *stmt;
 598
 599   if (stmts)
 600     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 601     {
 602       if (stmt->type == STMT_LIBRARY)
 603       {
 604           if (does_any_iface(stmt->u.lib->stmts, pred))
 605               return TRUE;
 606       }
 607       else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 608       {
 609         if (pred(stmt->u.type))
 610           return TRUE;
 611       }
 612     }
 613
 614   return FALSE;
 615 }
 616
 617 int need_proxy(const type_t *iface)
 618 {
 619   return is_object(iface->attrs) && !is_local(iface->attrs);
 620 }
 621
 622 int need_stub(const type_t *iface)
 623 {
 624   return !is_object(iface->attrs) && !is_local(iface->attrs);
 625 }
 626
 627 int need_proxy_file(const statement_list_t *stmts)
 628 {
 629   return does_any_iface(stmts, need_proxy);
 630 }
 631
 632 int need_stub_files(const statement_list_t *stmts)
 633 {
 634   return does_any_iface(stmts, need_stub);
 635 }
 636
 637 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 638 {
 639   const statement_t *stmt;
 640   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 641   {
 642     if (stmt->type == STMT_LIBRARY)
 643       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 644     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 645     {
 646       if (need_proxy(stmt->u.type))
 647         write_proxy(stmt->u.type, proc_offset);
 648     }
 649   }
 650 }
 651
 652 static void write_proxy_iface_name_format(const statement_list_t *stmts, const char *format)
 653 {
 654   const statement_t *stmt;
 655   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 656   {
 657     if (stmt->type == STMT_LIBRARY)
 658       write_proxy_iface_name_format(stmt->u.lib->stmts, format);
 659     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 660     {
 661       type_t *iface = stmt->u.type;
 662       if (iface->ref && iface->funcs && need_proxy(iface))
 663         fprintf(proxy, format, iface->name);
 664     }
 665   }
 666 }
 667
 668 static void write_iid_lookup(const statement_list_t *stmts, const char *file_id, int *c)
 669 {
 670   const statement_t *stmt;
 671   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 672   {
 673     if (stmt->type == STMT_LIBRARY)
 674       write_iid_lookup(stmt->u.lib->stmts, file_id, c);
 675     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 676     {
 677       type_t *iface = stmt->u.type;
 678       if(iface->ref && iface->funcs && need_proxy(iface))
 679       {
 680         fprintf(proxy, "    if (!_%s_CHECK_IID(%d))\n", file_id, *c);
 681         fprintf(proxy, "    {\n");
 682         fprintf(proxy, "        *pIndex = %d;\n", *c);
 683         fprintf(proxy, "        return 1;\n");
 684         fprintf(proxy, "    }\n");
 685         (*c)++;
 686       }
 687     }
 688   }
 689 }
 690
 691 void write_proxies(const statement_list_t *stmts)
 692 {
 693   int expr_eval_routines;
 694   char *file_id = proxy_token;
 695   int c;
 696   unsigned int proc_offset = 0;
 697
 698   if (!do_proxies) return;
 699   if (do_everything && !need_proxy_file(stmts)) return;
 700
 701   init_proxy(stmts);
 702   if(!proxy) return;
 703
 704   write_proxy_stmts(stmts, &proc_offset);
 705
 706   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 707   if (expr_eval_routines)
 708       write_expr_eval_routine_list(proxy, proxy_token);
 709   write_user_quad_list(proxy);
 710   write_stubdesc(expr_eval_routines);
 711
 712   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 713   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 714   print_proxy( "#endif\n");
 715   print_proxy( "\n");
 716   write_procformatstring(proxy, stmts, need_proxy);
 717   write_typeformatstring(proxy, stmts, need_proxy);
 718
 719   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 720   fprintf(proxy, "{\n");
 721   write_proxy_iface_name_format(stmts, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n");
 722   fprintf(proxy, "    0\n");
 723   fprintf(proxy, "};\n");
 724   fprintf(proxy, "\n");
 725
 726   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 727   fprintf(proxy, "{\n");
 728   write_proxy_iface_name_format(stmts, "    (const CInterfaceStubVtbl*)&_%sStubVtbl,\n");
 729   fprintf(proxy, "    0\n");
 730   fprintf(proxy, "};\n");
 731   fprintf(proxy, "\n");
 732
 733   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 734   fprintf(proxy, "{\n");
 735   write_proxy_iface_name_format(stmts, "    \"%s\",\n");
 736   fprintf(proxy, "    0\n");
 737   fprintf(proxy, "};\n");
 738   fprintf(proxy, "\n");
 739
 740   fprintf(proxy, "#define _%s_CHECK_IID(n) IID_GENERIC_CHECK_IID(_%s, pIID, n)\n", file_id, file_id);
 741   fprintf(proxy, "\n");
 742   fprintf(proxy, "int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 743   fprintf(proxy, "{\n");
 744   c = 0;
 745   write_iid_lookup(stmts, file_id, &c);
 746   fprintf(proxy, "    return 0;\n");
 747   fprintf(proxy, "}\n");
 748   fprintf(proxy, "\n");
 749
 750   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo =\n", file_id);
 751   fprintf(proxy, "{\n");
 752   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)&_%s_ProxyVtblList,\n", file_id);
 753   fprintf(proxy, "    (const PCInterfaceStubVtblList*)&_%s_StubVtblList,\n", file_id);
 754   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 755   fprintf(proxy, "    0,\n");
 756   fprintf(proxy, "    &_%s_IID_Lookup,\n", file_id);
 757   fprintf(proxy, "    %d,\n", c);
 758   fprintf(proxy, "    1,\n");
 759   fprintf(proxy, "    0,\n");
 760   fprintf(proxy, "    0,\n");
 761   fprintf(proxy, "    0,\n");
 762   fprintf(proxy, "    0\n");
 763   fprintf(proxy, "};\n");
 764
 765   fclose(proxy);
 766 }