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