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_exceptions( proxy );
 113   print_proxy( "\n");
 114   print_proxy( "struct __proxy_frame\n");
 115   print_proxy( "{\n");
 116   print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 117   print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 118   print_proxy( "    void             *This;\n");
 119   print_proxy( "};\n");
 120   print_proxy( "\n");
 121   print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 122   print_proxy( "{\n");
 123   print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 124   print_proxy( "}\n");
 125   print_proxy( "\n");
 126   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 127   write_stubdescproto();
 128 }
 129
 130 static void clear_output_vars( const var_list_t *args )
 131 {
 132   const var_t *arg;
 133
 134   if (!args) return;
 135   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 136   {
 137     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 138       print_proxy( "if(%s)\n", arg->name );
 139       indent++;
 140       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 141       indent--;
 142     }
 143   }
 144 }
 145
 146 int is_var_ptr(const var_t *v)
 147 {
 148   return is_ptr(v->type);
 149 }
 150
 151 int cant_be_null(const var_t *v)
 152 {
 153   /* Search backwards for the most recent pointer attribute.  */
 154   const attr_list_t *attrs = v->attrs;
 155   const type_t *type = v->type;
 156
 157   /* context handles have their own checking so they can be null for the
 158    * purposes of null ref pointer checking */
 159   if (is_aliaschain_attr(type, ATTR_CONTEXTHANDLE))
 160       return 0;
 161
 162   if (! attrs && type)
 163   {
 164     attrs = type->attrs;
 165     type = type->ref;
 166   }
 167
 168   while (attrs)
 169   {
 170     int t = get_attrv(attrs, ATTR_POINTERTYPE);
 171
 172     if (t == RPC_FC_FP || t == RPC_FC_OP || t == RPC_FC_UP)
 173       return 0;
 174
 175     if (t == RPC_FC_RP)
 176       return 1;
 177
 178     if (type)
 179     {
 180       attrs = type->attrs;
 181       type = type->ref;
 182     }
 183     else
 184       attrs = NULL;
 185   }
 186
 187   return 1;                             /* Default is RPC_FC_RP.  */
 188 }
 189
 190 static void proxy_check_pointers( const var_list_t *args )
 191 {
 192   const var_t *arg;
 193
 194   if (!args) return;
 195   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 196   {
 197     if (is_var_ptr(arg) && cant_be_null(arg)) {
 198         print_proxy( "if(!%s)\n", arg->name );
 199         indent++;
 200         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 201         indent--;
 202     }
 203   }
 204 }
 205
 206 static void free_variable( const var_t *arg, const char *local_var_prefix )
 207 {
 208   unsigned int type_offset = arg->type->typestring_offset;
 209   expr_t *iid;
 210   type_t *type = arg->type;
 211   expr_t *size = get_size_is_expr(type, arg->name);
 212
 213   if (size)
 214   {
 215     print_proxy( "__frame->_StubMsg.MaxCount = " );
 216     write_expr(proxy, size, 0, 1, NULL, NULL, local_var_prefix);
 217     fprintf(proxy, ";\n\n");
 218     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 219     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 220     fprintf(proxy, "(void*)%s );\n", arg->name );
 221     return;
 222   }
 223
 224   switch( type->type )
 225   {
 226   case RPC_FC_BYTE:
 227   case RPC_FC_CHAR:
 228   case RPC_FC_WCHAR:
 229   case RPC_FC_SHORT:
 230   case RPC_FC_USHORT:
 231   case RPC_FC_ENUM16:
 232   case RPC_FC_LONG:
 233   case RPC_FC_ULONG:
 234   case RPC_FC_ENUM32:
 235   case RPC_FC_STRUCT:
 236     break;
 237
 238   case RPC_FC_FP:
 239   case RPC_FC_IP:
 240     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 241     if( iid )
 242     {
 243       print_proxy( "__frame->_StubMsg.MaxCount = (unsigned long) " );
 244       write_expr(proxy, iid, 1, 1, NULL, NULL, local_var_prefix);
 245       print_proxy( ";\n\n" );
 246     }
 247     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 248     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 249     fprintf(proxy, "(void*)%s );\n", arg->name );
 250     break;
 251
 252   default:
 253     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type->type );
 254   }
 255 }
 256
 257 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 258 {
 259   const var_t *arg;
 260
 261   if (!args) return;
 262   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 263     if (is_attr(arg->attrs, ATTR_OUT))
 264     {
 265       free_variable( arg, local_var_prefix );
 266       fprintf(proxy, "\n");
 267     }
 268 }
 269
 270 static void gen_proxy(type_t *iface, const func_t *cur, int idx,
 271                       unsigned int proc_offset)
 272 {
 273   var_t *def = cur->def;
 274   int has_ret = !is_void(get_func_return_type(cur));
 275   int has_full_pointer = is_full_pointer_function(cur);
 276   const char *callconv = get_attrp(def->type->attrs, ATTR_CALLCONV);
 277   if (!callconv) callconv = "";
 278
 279   indent = 0;
 280   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 281                iface->name, get_name(def) );
 282   print_proxy( "{\n");
 283   indent++;
 284   if (has_full_pointer) write_full_pointer_free(proxy, indent, cur);
 285   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 286   indent--;
 287   print_proxy( "}\n");
 288   print_proxy( "\n");
 289
 290   write_type_decl_left(proxy, get_func_return_type(cur));
 291   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(def));
 292   write_args(proxy, cur->args, iface->name, 1, TRUE);
 293   print_proxy( ")\n");
 294   print_proxy( "{\n");
 295   indent ++;
 296   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 297   /* local variables */
 298   if (has_ret) {
 299     print_proxy( "" );
 300     write_type_decl_left(proxy, get_func_return_type(cur));
 301     print_proxy( " _RetVal;\n");
 302   }
 303   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 304   if (has_ret) {
 305     if (decl_indirect(get_func_return_type(cur)))
 306       print_proxy("void *_p_%s = &%s;\n",
 307                  "_RetVal", "_RetVal");
 308   }
 309   print_proxy( "\n");
 310
 311   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(def) );
 312   print_proxy( "__frame->This = This;\n" );
 313
 314   if (has_full_pointer)
 315     write_full_pointer_init(proxy, indent, cur, FALSE);
 316
 317   /* FIXME: trace */
 318   clear_output_vars( cur->args );
 319
 320   print_proxy( "RpcTryExcept\n" );
 321   print_proxy( "{\n" );
 322   indent++;
 323   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 324   proxy_check_pointers( cur->args );
 325
 326   print_proxy( "RpcTryFinally\n" );
 327   print_proxy( "{\n" );
 328   indent++;
 329
 330   write_remoting_arguments(proxy, indent, cur, "", PASS_IN, PHASE_BUFFERSIZE);
 331
 332   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 333
 334   write_remoting_arguments(proxy, indent, cur, "", PASS_IN, PHASE_MARSHAL);
 335
 336   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 337   fprintf(proxy, "\n");
 338   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 339   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 340
 341   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 342   indent++;
 343   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 344   indent--;
 345   fprintf(proxy, "\n");
 346
 347   write_remoting_arguments(proxy, indent, cur, "", PASS_OUT, PHASE_UNMARSHAL);
 348
 349   if (has_ret)
 350   {
 351       if (decl_indirect(get_func_return_type(cur)))
 352           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 353       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 354           print_proxy("%s = 0;\n", "_RetVal");
 355       write_remoting_arguments(proxy, indent, cur, "", PASS_RETURN, PHASE_UNMARSHAL);
 356   }
 357
 358   indent--;
 359   print_proxy( "}\n");
 360   print_proxy( "RpcFinally\n" );
 361   print_proxy( "{\n" );
 362   indent++;
 363   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(def) );
 364   indent--;
 365   print_proxy( "}\n");
 366   print_proxy( "RpcEndFinally\n" );
 367   indent--;
 368   print_proxy( "}\n" );
 369   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 370   print_proxy( "{\n" );
 371   if (has_ret) {
 372     indent++;
 373     proxy_free_variables( cur->args, "" );
 374     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 375     indent--;
 376   }
 377   print_proxy( "}\n" );
 378   print_proxy( "RpcEndExcept\n" );
 379
 380   if (has_ret) {
 381     print_proxy( "return _RetVal;\n" );
 382   }
 383   indent--;
 384   print_proxy( "}\n");
 385   print_proxy( "\n");
 386 }
 387
 388 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 389                      unsigned int proc_offset)
 390 {
 391   var_t *def = cur->def;
 392   const var_t *arg;
 393   int has_ret = !is_void(get_func_return_type(cur));
 394   int has_full_pointer = is_full_pointer_function(cur);
 395
 396   indent = 0;
 397   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(def));
 398   indent++;
 399   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 400   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 401   print_proxy( "%s * _This;\n", iface->name );
 402   declare_stub_args( proxy, indent, cur );
 403   indent--;
 404   print_proxy( "};\n\n" );
 405
 406   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(def) );
 407   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(def) );
 408   indent++;
 409   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_OUT, PHASE_FREE);
 410   if (has_full_pointer)
 411     write_full_pointer_free(proxy, indent, cur);
 412   indent--;
 413   print_proxy( "}\n\n" );
 414
 415   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(def));
 416   indent++;
 417   print_proxy( "IRpcStubBuffer* This,\n");
 418   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 419   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 420   print_proxy( "DWORD* _pdwStubPhase)\n");
 421   indent--;
 422   print_proxy( "{\n");
 423   indent++;
 424   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 425                iface->name, get_name(def) );
 426
 427   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 428
 429   /* FIXME: trace */
 430
 431   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 432   fprintf(proxy, "\n");
 433   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(def) );
 434
 435   write_parameters_init(proxy, indent, cur, "__frame->");
 436
 437   print_proxy("RpcTryFinally\n");
 438   print_proxy("{\n");
 439   indent++;
 440   if (has_full_pointer)
 441     write_full_pointer_init(proxy, indent, cur, TRUE);
 442   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 443   indent++;
 444   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 445   indent--;
 446   fprintf(proxy, "\n");
 447
 448   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 449   fprintf(proxy, "\n");
 450
 451   assign_stub_out_args( proxy, indent, cur, "__frame->" );
 452
 453   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 454   fprintf(proxy, "\n");
 455   print_proxy("");
 456   if (has_ret) fprintf(proxy, "__frame->_RetVal = ");
 457   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 458   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(def));
 459   fprintf(proxy, "(__frame->_This");
 460
 461   if (cur->args)
 462   {
 463       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 464           fprintf(proxy, ", %s__frame->%s", arg->type->declarray ? "*" : "", arg->name);
 465   }
 466   fprintf(proxy, ");\n");
 467   fprintf(proxy, "\n");
 468   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 469   fprintf(proxy, "\n");
 470
 471   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 472
 473   if (!is_void(get_func_return_type(cur)))
 474     write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 475
 476   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 477
 478   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_OUT, PHASE_MARSHAL);
 479   fprintf(proxy, "\n");
 480
 481   /* marshall the return value */
 482   if (!is_void(get_func_return_type(cur)))
 483     write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 484
 485   indent--;
 486   print_proxy("}\n");
 487   print_proxy("RpcFinally\n");
 488   print_proxy("{\n");
 489   indent++;
 490   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(def) );
 491   indent--;
 492   print_proxy("}\n");
 493   print_proxy("RpcEndFinally\n");
 494
 495   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 496   indent--;
 497
 498   print_proxy("}\n");
 499   print_proxy("\n");
 500 }
 501
 502 static int write_proxy_methods(type_t *iface, int skip)
 503 {
 504   const func_t *cur;
 505   int i = 0;
 506
 507   if (iface->ref) i = write_proxy_methods(iface->ref, iface->ref->ref != NULL);
 508   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 509     var_t *def = cur->def;
 510     if (!is_callas(def->attrs)) {
 511       if (i) fprintf(proxy, ",\n");
 512       if (skip) print_proxy( "0  /* %s_%s_Proxy */", iface->name, get_name(def));
 513       else print_proxy( "%s_%s_Proxy", iface->name, get_name(def));
 514       i++;
 515     }
 516   }
 517   return i;
 518 }
 519
 520 static int write_stub_methods(type_t *iface, int skip)
 521 {
 522   const func_t *cur;
 523   int i = 0;
 524
 525   if (iface->ref) i = write_stub_methods(iface->ref, TRUE);
 526   else return i; /* skip IUnknown */
 527
 528   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 529     var_t *def = cur->def;
 530     if (!is_local(def->attrs)) {
 531       if (i) fprintf(proxy,",\n");
 532       if (skip) print_proxy("STUB_FORWARDING_FUNCTION");
 533       else print_proxy( "%s_%s_Stub", iface->name, get_name(def));
 534       i++;
 535     }
 536   }
 537   return i;
 538 }
 539
 540 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 541 {
 542   int midx = -1, stubs;
 543   const func_t *cur;
 544
 545   if (!iface->funcs) return;
 546
 547   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 548
 549   fprintf(proxy, "/*****************************************************************************\n");
 550   fprintf(proxy, " * %s interface\n", iface->name);
 551   fprintf(proxy, " */\n");
 552   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 553   {
 554     const var_t *def = cur->def;
 555     if (!is_local(def->attrs)) {
 556       const var_t *cas = is_callas(def->attrs);
 557       const char *cname = cas ? cas->name : NULL;
 558       int idx = cur->idx;
 559       if (cname) {
 560           const func_t *m;
 561           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 562               if (!strcmp(m->def->name, cname))
 563               {
 564                   idx = m->idx;
 565                   break;
 566               }
 567       }
 568       gen_proxy(iface, cur, idx, *proc_offset);
 569       gen_stub(iface, cur, cname, *proc_offset);
 570       *proc_offset += get_size_procformatstring_func( cur );
 571       if (midx == -1) midx = idx;
 572       else if (midx != idx) error("method index mismatch in write_proxy\n");
 573       midx++;
 574     }
 575   }
 576
 577   /* proxy vtable */
 578   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", midx, iface->name);
 579   print_proxy( "{\n");
 580   indent++;
 581   print_proxy( "{\n", iface->name);
 582   indent++;
 583   print_proxy( "&IID_%s,\n", iface->name);
 584   indent--;
 585   print_proxy( "},\n");
 586   print_proxy( "{\n");
 587   indent++;
 588   write_proxy_methods(iface, FALSE);
 589   fprintf(proxy, "\n");
 590   indent--;
 591   print_proxy( "}\n");
 592   indent--;
 593   print_proxy( "};\n");
 594   fprintf(proxy, "\n\n");
 595
 596   /* stub vtable */
 597   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 598   print_proxy( "{\n");
 599   indent++;
 600   stubs = write_stub_methods(iface, FALSE);
 601   fprintf(proxy, "\n");
 602   indent--;
 603   fprintf(proxy, "};\n");
 604   print_proxy( "\n");
 605   print_proxy( "static const CInterfaceStubVtbl _%sStubVtbl =\n", iface->name);
 606   print_proxy( "{\n");
 607   indent++;
 608   print_proxy( "{\n");
 609   indent++;
 610   print_proxy( "&IID_%s,\n", iface->name);
 611   print_proxy( "0,\n");
 612   print_proxy( "%d,\n", stubs+3);
 613   print_proxy( "&%s_table[-3],\n", iface->name);
 614   indent--;
 615   print_proxy( "},\n", iface->name);
 616   print_proxy( "{\n");
 617   indent++;
 618   print_proxy( "CStdStubBuffer_METHODS\n");
 619   indent--;
 620   print_proxy( "}\n");
 621   indent--;
 622   print_proxy( "};\n");
 623   print_proxy( "\n");
 624 }
 625
 626 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 627 {
 628   const statement_t *stmt;
 629
 630   if (stmts)
 631     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 632     {
 633       if (stmt->type == STMT_LIBRARY)
 634       {
 635           if (does_any_iface(stmt->u.lib->stmts, pred))
 636               return TRUE;
 637       }
 638       else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 639       {
 640         if (pred(stmt->u.type))
 641           return TRUE;
 642       }
 643     }
 644
 645   return FALSE;
 646 }
 647
 648 int need_proxy(const type_t *iface)
 649 {
 650   return is_object(iface->attrs) && !is_local(iface->attrs);
 651 }
 652
 653 int need_stub(const type_t *iface)
 654 {
 655   return !is_object(iface->attrs) && !is_local(iface->attrs);
 656 }
 657
 658 int need_proxy_file(const statement_list_t *stmts)
 659 {
 660   return does_any_iface(stmts, need_proxy);
 661 }
 662
 663 int need_stub_files(const statement_list_t *stmts)
 664 {
 665   return does_any_iface(stmts, need_stub);
 666 }
 667
 668 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 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_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 675     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 676     {
 677       if (need_proxy(stmt->u.type))
 678         write_proxy(stmt->u.type, proc_offset);
 679     }
 680   }
 681 }
 682
 683 static void write_proxy_iface_name_format(const statement_list_t *stmts, const char *format)
 684 {
 685   const statement_t *stmt;
 686   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 687   {
 688     if (stmt->type == STMT_LIBRARY)
 689       write_proxy_iface_name_format(stmt->u.lib->stmts, format);
 690     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 691     {
 692       type_t *iface = stmt->u.type;
 693       if (iface->ref && iface->funcs && need_proxy(iface))
 694         fprintf(proxy, format, iface->name);
 695     }
 696   }
 697 }
 698
 699 static void write_iid_lookup(const statement_list_t *stmts, const char *file_id, int *c)
 700 {
 701   const statement_t *stmt;
 702   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 703   {
 704     if (stmt->type == STMT_LIBRARY)
 705       write_iid_lookup(stmt->u.lib->stmts, file_id, c);
 706     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 707     {
 708       type_t *iface = stmt->u.type;
 709       if(iface->ref && iface->funcs && need_proxy(iface))
 710       {
 711         fprintf(proxy, "    if (!_%s_CHECK_IID(%d))\n", file_id, *c);
 712         fprintf(proxy, "    {\n");
 713         fprintf(proxy, "        *pIndex = %d;\n", *c);
 714         fprintf(proxy, "        return 1;\n");
 715         fprintf(proxy, "    }\n");
 716         (*c)++;
 717       }
 718     }
 719   }
 720 }
 721
 722 void write_proxies(const statement_list_t *stmts)
 723 {
 724   int expr_eval_routines;
 725   char *file_id = proxy_token;
 726   int c;
 727   unsigned int proc_offset = 0;
 728
 729   if (!do_proxies) return;
 730   if (do_everything && !need_proxy_file(stmts)) return;
 731
 732   init_proxy(stmts);
 733   if(!proxy) return;
 734
 735   write_proxy_stmts(stmts, &proc_offset);
 736
 737   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 738   if (expr_eval_routines)
 739       write_expr_eval_routine_list(proxy, proxy_token);
 740   write_user_quad_list(proxy);
 741   write_stubdesc(expr_eval_routines);
 742
 743   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 744   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 745   print_proxy( "#endif\n");
 746   print_proxy( "\n");
 747   write_procformatstring(proxy, stmts, need_proxy);
 748   write_typeformatstring(proxy, stmts, need_proxy);
 749
 750   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 751   fprintf(proxy, "{\n");
 752   write_proxy_iface_name_format(stmts, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n");
 753   fprintf(proxy, "    0\n");
 754   fprintf(proxy, "};\n");
 755   fprintf(proxy, "\n");
 756
 757   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 758   fprintf(proxy, "{\n");
 759   write_proxy_iface_name_format(stmts, "    (const CInterfaceStubVtbl*)&_%sStubVtbl,\n");
 760   fprintf(proxy, "    0\n");
 761   fprintf(proxy, "};\n");
 762   fprintf(proxy, "\n");
 763
 764   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 765   fprintf(proxy, "{\n");
 766   write_proxy_iface_name_format(stmts, "    \"%s\",\n");
 767   fprintf(proxy, "    0\n");
 768   fprintf(proxy, "};\n");
 769   fprintf(proxy, "\n");
 770
 771   fprintf(proxy, "#define _%s_CHECK_IID(n) IID_GENERIC_CHECK_IID(_%s, pIID, n)\n", file_id, file_id);
 772   fprintf(proxy, "\n");
 773   fprintf(proxy, "int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 774   fprintf(proxy, "{\n");
 775   c = 0;
 776   write_iid_lookup(stmts, file_id, &c);
 777   fprintf(proxy, "    return 0;\n");
 778   fprintf(proxy, "}\n");
 779   fprintf(proxy, "\n");
 780
 781   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo =\n", file_id);
 782   fprintf(proxy, "{\n");
 783   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)&_%s_ProxyVtblList,\n", file_id);
 784   fprintf(proxy, "    (const PCInterfaceStubVtblList*)&_%s_StubVtblList,\n", file_id);
 785   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 786   fprintf(proxy, "    0,\n");
 787   fprintf(proxy, "    &_%s_IID_Lookup,\n", file_id);
 788   fprintf(proxy, "    %d,\n", c);
 789   fprintf(proxy, "    1,\n");
 790   fprintf(proxy, "    0,\n");
 791   fprintf(proxy, "    0,\n");
 792   fprintf(proxy, "    0,\n");
 793   fprintf(proxy, "    0\n");
 794   fprintf(proxy, "};\n");
 795
 796   fclose(proxy);
 797 }