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 #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
 274     /* Initialize _RetVal properly in order to avoid compiler warnings */
 275     if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 276       print_proxy(" _RetVal = NULL;\n");
 277     else
 278       print_proxy(" _RetVal = 0;\n");
 279   }
 280   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 281   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n" );
 282   if (has_ret) {
 283     if (decl_indirect(get_func_return_type(cur)))
 284       print_proxy("void *_p_%s = &%s;\n",
 285                  "_RetVal", "_RetVal");
 286   }
 287   print_proxy( "\n");
 288
 289   if (has_full_pointer)
 290     write_full_pointer_init(proxy, indent, cur, FALSE);
 291
 292   /* FIXME: trace */
 293   clear_output_vars( cur->args );
 294
 295   print_proxy( "RpcTryExcept\n" );
 296   print_proxy( "{\n" );
 297   indent++;
 298   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &_StubMsg, &Object_StubDesc, %d);\n", idx);
 299   proxy_check_pointers( cur->args );
 300
 301   print_proxy( "RpcTryFinally\n" );
 302   print_proxy( "{\n" );
 303   indent++;
 304
 305   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_BUFFERSIZE);
 306
 307   print_proxy( "NdrProxyGetBuffer(This, &_StubMsg);\n" );
 308
 309   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_MARSHAL);
 310
 311   print_proxy( "NdrProxySendReceive(This, &_StubMsg);\n" );
 312   fprintf(proxy, "\n");
 313   print_proxy( "_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 314   print_proxy( "_StubMsg.BufferEnd   = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 315
 316   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 317   indent++;
 318   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 319   indent--;
 320   fprintf(proxy, "\n");
 321
 322   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_UNMARSHAL);
 323
 324   if (has_ret)
 325   {
 326       if (decl_indirect(get_func_return_type(cur)))
 327           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 328       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 329           print_proxy("%s = 0;\n", "_RetVal");
 330       write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_UNMARSHAL);
 331   }
 332
 333   indent--;
 334   print_proxy( "}\n");
 335   print_proxy( "RpcFinally\n" );
 336   print_proxy( "{\n" );
 337   indent++;
 338   if (has_full_pointer)
 339     write_full_pointer_free(proxy, indent, cur);
 340   print_proxy( "NdrProxyFreeBuffer(This, &_StubMsg);\n" );
 341   indent--;
 342   print_proxy( "}\n");
 343   print_proxy( "RpcEndFinally\n" );
 344   indent--;
 345   print_proxy( "}\n" );
 346   print_proxy( "RpcExcept(_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 347   print_proxy( "{\n" );
 348   if (has_ret) {
 349     indent++;
 350     proxy_free_variables( cur->args );
 351     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 352     indent--;
 353   }
 354   print_proxy( "}\n" );
 355   print_proxy( "RpcEndExcept\n" );
 356
 357   if (has_ret) {
 358     print_proxy( "return _RetVal;\n" );
 359   }
 360   indent--;
 361   print_proxy( "}\n");
 362   print_proxy( "\n");
 363 }
 364
 365 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 366                      unsigned int proc_offset)
 367 {
 368   var_t *def = cur->def;
 369   const var_t *arg;
 370   int has_ret = !is_void(get_func_return_type(cur));
 371   int has_full_pointer = is_full_pointer_function(cur);
 372
 373   indent = 0;
 374   print_proxy( "void __RPC_STUB %s_", iface->name);
 375   write_name(proxy, def);
 376   print_proxy( "_Stub(\n");
 377   indent++;
 378   print_proxy( "IRpcStubBuffer* This,\n");
 379   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 380   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 381   print_proxy( "DWORD* _pdwStubPhase)\n");
 382   indent--;
 383   print_proxy( "{\n");
 384   indent++;
 385   print_proxy("%s * _This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n", iface->name, iface->name);
 386   print_proxy("MIDL_STUB_MESSAGE _StubMsg;\n");
 387   declare_stub_args( proxy, indent, cur );
 388   fprintf(proxy, "\n");
 389
 390   /* FIXME: trace */
 391
 392   print_proxy("NdrStubInitialize(_pRpcMessage, &_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 393   fprintf(proxy, "\n");
 394
 395   write_parameters_init(proxy, indent, cur);
 396
 397   print_proxy("RpcTryFinally\n");
 398   print_proxy("{\n");
 399   indent++;
 400   if (has_full_pointer)
 401     write_full_pointer_init(proxy, indent, cur, TRUE);
 402   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 403   indent++;
 404   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 405   indent--;
 406   fprintf(proxy, "\n");
 407
 408   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_UNMARSHAL);
 409   fprintf(proxy, "\n");
 410
 411   assign_stub_out_args( proxy, indent, cur );
 412
 413   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 414   fprintf(proxy, "\n");
 415   print_proxy("");
 416   if (has_ret) fprintf(proxy, "_RetVal = ");
 417   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 418   else
 419   {
 420       fprintf(proxy, "_This->lpVtbl->");
 421       write_name(proxy, def);
 422   }
 423   fprintf(proxy, "(_This");
 424
 425   if (cur->args)
 426   {
 427       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 428       {
 429           fprintf(proxy, ", ");
 430           if (arg->type->declarray)
 431               fprintf(proxy, "*");
 432           write_name(proxy, arg);
 433       }
 434   }
 435   fprintf(proxy, ");\n");
 436   fprintf(proxy, "\n");
 437   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 438   fprintf(proxy, "\n");
 439
 440   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_BUFFERSIZE);
 441
 442   if (!is_void(get_func_return_type(cur)))
 443     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_BUFFERSIZE);
 444
 445   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &_StubMsg);\n");
 446
 447   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_MARSHAL);
 448   fprintf(proxy, "\n");
 449
 450   /* marshall the return value */
 451   if (!is_void(get_func_return_type(cur)))
 452     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_MARSHAL);
 453
 454   indent--;
 455   print_proxy("}\n");
 456   print_proxy("RpcFinally\n");
 457   print_proxy("{\n");
 458
 459   write_remoting_arguments(proxy, indent+1, cur, PASS_OUT, PHASE_FREE);
 460
 461   if (has_full_pointer)
 462     write_full_pointer_free(proxy, indent, cur);
 463
 464   print_proxy("}\n");
 465   print_proxy("RpcEndFinally\n");
 466
 467   print_proxy("_pRpcMessage->BufferLength = _StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 468   indent--;
 469
 470   print_proxy("}\n");
 471   print_proxy("\n");
 472 }
 473
 474 static int write_proxy_methods(type_t *iface, int skip)
 475 {
 476   const func_t *cur;
 477   int i = 0;
 478
 479   if (iface->ref) i = write_proxy_methods(iface->ref, iface->ref->ref != NULL);
 480   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 481     var_t *def = cur->def;
 482     if (!is_callas(def->attrs)) {
 483       if (i) fprintf(proxy, ",\n");
 484       print_proxy( "%s%s_", skip ? "0\t/* " : "", iface->name);
 485       write_name(proxy, def);
 486       fprintf(proxy, "_Proxy%s", skip ? " */" : "");
 487       i++;
 488     }
 489   }
 490   return i;
 491 }
 492
 493 static int write_stub_methods(type_t *iface, int skip)
 494 {
 495   const func_t *cur;
 496   int i = 0;
 497
 498   if (iface->ref) i = write_stub_methods(iface->ref, TRUE);
 499   else return i; /* skip IUnknown */
 500
 501   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 502     var_t *def = cur->def;
 503     if (!is_local(def->attrs)) {
 504       if (skip)
 505         print_proxy("STUB_FORWARDING_FUNCTION,\n");
 506       else {
 507         if (i) fprintf(proxy,",\n");
 508         print_proxy( "%s_", iface->name);
 509         write_name(proxy, def);
 510         fprintf(proxy, "_Stub");
 511         i++;
 512       }
 513     }
 514   }
 515   return i;
 516 }
 517
 518 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 519 {
 520   int midx = -1, stubs;
 521   const func_t *cur;
 522
 523   if (!iface->funcs) return;
 524
 525   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 526
 527   fprintf(proxy, "/*****************************************************************************\n");
 528   fprintf(proxy, " * %s interface\n", iface->name);
 529   fprintf(proxy, " */\n");
 530   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 531   {
 532     const var_t *def = cur->def;
 533     if (!is_local(def->attrs)) {
 534       const var_t *cas = is_callas(def->attrs);
 535       const char *cname = cas ? cas->name : NULL;
 536       int idx = cur->idx;
 537       if (cname) {
 538           const func_t *m;
 539           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 540               if (!strcmp(m->def->name, cname))
 541               {
 542                   idx = m->idx;
 543                   break;
 544               }
 545       }
 546       gen_proxy(iface, cur, idx, *proc_offset);
 547       gen_stub(iface, cur, cname, *proc_offset);
 548       *proc_offset += get_size_procformatstring_func( cur );
 549       if (midx == -1) midx = idx;
 550       else if (midx != idx) error("method index mismatch in write_proxy\n");
 551       midx++;
 552     }
 553   }
 554
 555   /* proxy vtable */
 556   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", midx, iface->name);
 557   print_proxy( "{\n");
 558   indent++;
 559   print_proxy( "{\n", iface->name);
 560   indent++;
 561   print_proxy( "&IID_%s,\n", iface->name);
 562   indent--;
 563   print_proxy( "},\n");
 564   print_proxy( "{\n");
 565   indent++;
 566   write_proxy_methods(iface, FALSE);
 567   fprintf(proxy, "\n");
 568   indent--;
 569   print_proxy( "}\n");
 570   indent--;
 571   print_proxy( "};\n");
 572   fprintf(proxy, "\n\n");
 573
 574   /* stub vtable */
 575   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 576   print_proxy( "{\n");
 577   indent++;
 578   stubs = write_stub_methods(iface, FALSE);
 579   fprintf(proxy, "\n");
 580   indent--;
 581   fprintf(proxy, "};\n");
 582   print_proxy( "\n");
 583   print_proxy( "static const CInterfaceStubVtbl _%sStubVtbl =\n", iface->name);
 584   print_proxy( "{\n");
 585   indent++;
 586   print_proxy( "{\n");
 587   indent++;
 588   print_proxy( "&IID_%s,\n", iface->name);
 589   print_proxy( "0,\n");
 590   print_proxy( "%d,\n", stubs+3);
 591   print_proxy( "&%s_table[-3],\n", iface->name);
 592   indent--;
 593   print_proxy( "},\n", iface->name);
 594   print_proxy( "{\n");
 595   indent++;
 596   print_proxy( "CStdStubBuffer_METHODS\n");
 597   indent--;
 598   print_proxy( "}\n");
 599   indent--;
 600   print_proxy( "};\n");
 601   print_proxy( "\n");
 602 }
 603
 604 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 605 {
 606   const statement_t *stmt;
 607
 608   if (stmts)
 609     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 610     {
 611       if (stmt->type == STMT_LIBRARY)
 612       {
 613           if (does_any_iface(stmt->u.lib->stmts, pred))
 614               return TRUE;
 615       }
 616       else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 617       {
 618         if (pred(stmt->u.type))
 619           return TRUE;
 620       }
 621     }
 622
 623   return FALSE;
 624 }
 625
 626 int need_proxy(const type_t *iface)
 627 {
 628   return is_object(iface->attrs) && !is_local(iface->attrs);
 629 }
 630
 631 int need_stub(const type_t *iface)
 632 {
 633   return !is_object(iface->attrs) && !is_local(iface->attrs);
 634 }
 635
 636 int need_proxy_file(const statement_list_t *stmts)
 637 {
 638   return does_any_iface(stmts, need_proxy);
 639 }
 640
 641 int need_stub_files(const statement_list_t *stmts)
 642 {
 643   return does_any_iface(stmts, need_stub);
 644 }
 645
 646 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 647 {
 648   const statement_t *stmt;
 649   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 650   {
 651     if (stmt->type == STMT_LIBRARY)
 652       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 653     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 654     {
 655       if (need_proxy(stmt->u.type))
 656         write_proxy(stmt->u.type, proc_offset);
 657     }
 658   }
 659 }
 660
 661 static void write_proxy_iface_name_format(const statement_list_t *stmts, const char *format)
 662 {
 663   const statement_t *stmt;
 664   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 665   {
 666     if (stmt->type == STMT_LIBRARY)
 667       write_proxy_iface_name_format(stmt->u.lib->stmts, format);
 668     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 669     {
 670       type_t *iface = stmt->u.type;
 671       if (iface->ref && iface->funcs && need_proxy(iface))
 672         fprintf(proxy, format, iface->name);
 673     }
 674   }
 675 }
 676
 677 static void write_iid_lookup(const statement_list_t *stmts, const char *file_id, int *c)
 678 {
 679   const statement_t *stmt;
 680   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 681   {
 682     if (stmt->type == STMT_LIBRARY)
 683       write_iid_lookup(stmt->u.lib->stmts, file_id, c);
 684     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 685     {
 686       type_t *iface = stmt->u.type;
 687       if(iface->ref && iface->funcs && need_proxy(iface))
 688       {
 689         fprintf(proxy, "    if (!_%s_CHECK_IID(%d))\n", file_id, *c);
 690         fprintf(proxy, "    {\n");
 691         fprintf(proxy, "        *pIndex = %d;\n", *c);
 692         fprintf(proxy, "        return 1;\n");
 693         fprintf(proxy, "    }\n");
 694         (*c)++;
 695       }
 696     }
 697   }
 698 }
 699
 700 void write_proxies(const statement_list_t *stmts)
 701 {
 702   int expr_eval_routines;
 703   char *file_id = proxy_token;
 704   int c;
 705   unsigned int proc_offset = 0;
 706
 707   if (!do_proxies) return;
 708   if (do_everything && !need_proxy_file(stmts)) return;
 709
 710   init_proxy(stmts);
 711   if(!proxy) return;
 712
 713   write_proxy_stmts(stmts, &proc_offset);
 714
 715   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 716   if (expr_eval_routines)
 717       write_expr_eval_routine_list(proxy, proxy_token);
 718   write_user_quad_list(proxy);
 719   write_stubdesc(expr_eval_routines);
 720
 721   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 722   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 723   print_proxy( "#endif\n");
 724   print_proxy( "\n");
 725   write_procformatstring(proxy, stmts, need_proxy);
 726   write_typeformatstring(proxy, stmts, need_proxy);
 727
 728   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 729   fprintf(proxy, "{\n");
 730   write_proxy_iface_name_format(stmts, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n");
 731   fprintf(proxy, "    0\n");
 732   fprintf(proxy, "};\n");
 733   fprintf(proxy, "\n");
 734
 735   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 736   fprintf(proxy, "{\n");
 737   write_proxy_iface_name_format(stmts, "    (const CInterfaceStubVtbl*)&_%sStubVtbl,\n");
 738   fprintf(proxy, "    0\n");
 739   fprintf(proxy, "};\n");
 740   fprintf(proxy, "\n");
 741
 742   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 743   fprintf(proxy, "{\n");
 744   write_proxy_iface_name_format(stmts, "    \"%s\",\n");
 745   fprintf(proxy, "    0\n");
 746   fprintf(proxy, "};\n");
 747   fprintf(proxy, "\n");
 748
 749   fprintf(proxy, "#define _%s_CHECK_IID(n) IID_GENERIC_CHECK_IID(_%s, pIID, n)\n", file_id, file_id);
 750   fprintf(proxy, "\n");
 751   fprintf(proxy, "int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 752   fprintf(proxy, "{\n");
 753   c = 0;
 754   write_iid_lookup(stmts, file_id, &c);
 755   fprintf(proxy, "    return 0;\n");
 756   fprintf(proxy, "}\n");
 757   fprintf(proxy, "\n");
 758
 759   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo =\n", file_id);
 760   fprintf(proxy, "{\n");
 761   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)&_%s_ProxyVtblList,\n", file_id);
 762   fprintf(proxy, "    (const PCInterfaceStubVtblList*)&_%s_StubVtblList,\n", file_id);
 763   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 764   fprintf(proxy, "    0,\n");
 765   fprintf(proxy, "    &_%s_IID_Lookup,\n", file_id);
 766   fprintf(proxy, "    %d,\n", c);
 767   fprintf(proxy, "    1,\n");
 768   fprintf(proxy, "    0,\n");
 769   fprintf(proxy, "    0,\n");
 770   fprintf(proxy, "    0,\n");
 771   fprintf(proxy, "    0\n");
 772   fprintf(proxy, "};\n");
 773
 774   fclose(proxy);
 775 }