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 static void print_proxy( const char *format, ... ) __attribute__((format (printf, 1, 2)));
  52 static void print_proxy( const char *format, ... )
  53 {
  54   va_list va;
  55   va_start( va, format );
  56   print( proxy, indent, format, va );
  57   va_end( va );
  58 }
  59
  60 static void write_stubdescproto(void)
  61 {
  62   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  63   print_proxy( "\n");
  64 }
  65
  66 static void write_stubdesc(int expr_eval_routines)
  67 {
  68   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  69   indent++;
  70   print_proxy( "0,\n");
  71   print_proxy( "NdrOleAllocate,\n");
  72   print_proxy( "NdrOleFree,\n");
  73   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  74   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  75   print_proxy( "1, /* -error bounds_check flag */\n");
  76   print_proxy( "0x%x, /* Ndr library version */\n", get_stub_mode() == MODE_Oif ? 0x50002 : 0x10001);
  77   print_proxy( "0,\n");
  78   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  79   print_proxy( "0,\n");
  80   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  81   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  82   print_proxy( "1,  /* Flags */\n");
  83   print_proxy( "0,  /* Reserved3 */\n");
  84   print_proxy( "0,  /* Reserved4 */\n");
  85   print_proxy( "0   /* Reserved5 */\n");
  86   indent--;
  87   print_proxy( "};\n");
  88   print_proxy( "\n");
  89 }
  90
  91 static void init_proxy(const statement_list_t *stmts)
  92 {
  93   if (proxy) return;
  94   if(!(proxy = fopen(proxy_name, "w")))
  95     error("Could not open %s for output\n", proxy_name);
  96   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  97   print_proxy( "\n");
  98   print_proxy( "#define __midl_proxy\n");
  99   print_proxy( "#include \"objbase.h\"\n");
 100   print_proxy( "\n");
 101   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
 102   print_proxy( "#define DECLSPEC_HIDDEN\n");
 103   print_proxy( "#endif\n");
 104   print_proxy( "\n");
 105 }
 106
 107 static void clear_output_vars( const var_list_t *args )
 108 {
 109   const var_t *arg;
 110
 111   if (!args) return;
 112   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 113   {
 114     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 115       print_proxy( "if(%s)\n", arg->name );
 116       indent++;
 117       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 118       indent--;
 119     }
 120   }
 121 }
 122
 123 int is_var_ptr(const var_t *v)
 124 {
 125   return is_ptr(v->type);
 126 }
 127
 128 int cant_be_null(const var_t *v)
 129 {
 130     switch (typegen_detect_type(v->type, v->attrs, TDT_IGNORE_STRINGS))
 131     {
 132     case TGT_ARRAY:
 133     case TGT_POINTER:
 134         return (get_pointer_fc(v->type, v->attrs, TRUE) == RPC_FC_RP);
 135     case TGT_CTXT_HANDLE_POINTER:
 136         return TRUE;
 137     default:
 138         return 0;
 139     }
 140
 141 }
 142
 143 static int need_delegation(const type_t *iface)
 144 {
 145     return type_iface_get_inherit(iface) &&
 146            type_iface_get_inherit(type_iface_get_inherit(iface)) &&
 147            type_iface_get_inherit(iface)->ignore;
 148 }
 149
 150 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 151 {
 152   const type_t * cur_iface;
 153   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 154     if (need_delegation(cur_iface))
 155     {
 156       if(delegate_to)
 157         *delegate_to = type_iface_get_inherit(cur_iface);
 158       return 1;
 159     }
 160   return 0;
 161 }
 162
 163 static int need_delegation_indirect(const type_t *iface)
 164 {
 165   return get_delegation_indirect(iface, NULL);
 166 }
 167
 168 static void proxy_check_pointers( const var_list_t *args )
 169 {
 170   const var_t *arg;
 171
 172   if (!args) return;
 173   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 174   {
 175     if (is_var_ptr(arg) && cant_be_null(arg)) {
 176         print_proxy( "if(!%s)\n", arg->name );
 177         indent++;
 178         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 179         indent--;
 180     }
 181   }
 182 }
 183
 184 static void free_variable( const var_t *arg, const char *local_var_prefix )
 185 {
 186   unsigned int type_offset = arg->type->typestring_offset;
 187   expr_t *iid;
 188   type_t *type = arg->type;
 189   expr_t *size = get_size_is_expr(type, arg->name);
 190
 191   if (size)
 192   {
 193     print_proxy( "__frame->_StubMsg.MaxCount = " );
 194     write_expr(proxy, size, 0, 1, NULL, NULL, local_var_prefix);
 195     fprintf(proxy, ";\n\n");
 196     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 197     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 198     fprintf(proxy, "(void*)%s );\n", arg->name );
 199     return;
 200   }
 201
 202   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 203   {
 204   case TGT_ENUM:
 205   case TGT_BASIC:
 206     break;
 207
 208   case TGT_STRUCT:
 209     if (get_struct_fc(type) != RPC_FC_STRUCT)
 210       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 211     break;
 212
 213   case TGT_IFACE_POINTER:
 214     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 215     if( iid )
 216     {
 217       print_proxy( "__frame->_StubMsg.MaxCount = (ULONG_PTR) " );
 218       write_expr(proxy, iid, 1, 1, NULL, NULL, local_var_prefix);
 219       print_proxy( ";\n\n" );
 220     }
 221     /* fall through */
 222   case TGT_POINTER:
 223     if (get_pointer_fc(type, arg->attrs, TRUE) == RPC_FC_FP)
 224     {
 225       print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 226       fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 227       fprintf(proxy, "(void*)%s );\n", arg->name );
 228     }
 229     else
 230       print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 231     break;
 232
 233   default:
 234     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 235   }
 236 }
 237
 238 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 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, local_var_prefix );
 247       fprintf(proxy, "\n");
 248     }
 249 }
 250
 251 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 252                       unsigned int proc_offset)
 253 {
 254   type_t *rettype = type_function_get_rettype(func->type);
 255   int has_ret = !is_void(rettype);
 256   int has_full_pointer = is_full_pointer_function(func);
 257   const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 258   const var_list_t *args = type_get_function_args(func->type);
 259   if (!callconv) callconv = "STDMETHODCALLTYPE";
 260
 261   indent = 0;
 262   if (is_interpreted_func( iface, func ))
 263   {
 264       if (get_stub_mode() == MODE_Oif && !is_callas( func->attrs )) return;
 265       write_type_decl_left(proxy, type_function_get_rettype(func->type));
 266       print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 267       write_args(proxy, args, iface->name, 1, TRUE);
 268       print_proxy( ")\n");
 269       write_client_call_routine( proxy, iface, func, "Object", proc_offset );
 270       return;
 271   }
 272   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 273                iface->name, get_name(func) );
 274   print_proxy( "{\n");
 275   indent++;
 276   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 277   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 278   indent--;
 279   print_proxy( "}\n");
 280   print_proxy( "\n");
 281
 282   write_type_decl_left(proxy, rettype);
 283   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 284   write_args(proxy, args, iface->name, 1, TRUE);
 285   print_proxy( ")\n");
 286   print_proxy( "{\n");
 287   indent ++;
 288   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 289   /* local variables */
 290   if (has_ret) {
 291     print_proxy( "%s", "" );
 292     write_type_decl_left(proxy, rettype);
 293     print_proxy( " _RetVal;\n");
 294   }
 295   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 296   if (has_ret) {
 297     if (decl_indirect(rettype))
 298       print_proxy("void *_p_%s = &%s;\n",
 299                  "_RetVal", "_RetVal");
 300   }
 301   print_proxy( "\n");
 302
 303   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 304   print_proxy( "__frame->This = This;\n" );
 305
 306   if (has_full_pointer)
 307     write_full_pointer_init(proxy, indent, func, FALSE);
 308
 309   /* FIXME: trace */
 310   clear_output_vars( type_get_function_args(func->type) );
 311
 312   print_proxy( "RpcTryExcept\n" );
 313   print_proxy( "{\n" );
 314   indent++;
 315   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 316   proxy_check_pointers( type_get_function_args(func->type) );
 317
 318   print_proxy( "RpcTryFinally\n" );
 319   print_proxy( "{\n" );
 320   indent++;
 321
 322   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 323
 324   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 325
 326   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 327
 328   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 329   fprintf(proxy, "\n");
 330   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 331   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 332
 333   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 334   indent++;
 335   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 336   indent--;
 337   fprintf(proxy, "\n");
 338
 339   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 340
 341   if (has_ret)
 342   {
 343       if (decl_indirect(rettype))
 344           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 345       else if (is_ptr(rettype) || is_array(rettype))
 346           print_proxy("%s = 0;\n", "_RetVal");
 347       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 348   }
 349
 350   indent--;
 351   print_proxy( "}\n");
 352   print_proxy( "RpcFinally\n" );
 353   print_proxy( "{\n" );
 354   indent++;
 355   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 356   indent--;
 357   print_proxy( "}\n");
 358   print_proxy( "RpcEndFinally\n" );
 359   indent--;
 360   print_proxy( "}\n" );
 361   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 362   print_proxy( "{\n" );
 363   if (has_ret) {
 364     indent++;
 365     proxy_free_variables( type_get_function_args(func->type), "" );
 366     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 367     indent--;
 368   }
 369   print_proxy( "}\n" );
 370   print_proxy( "RpcEndExcept\n" );
 371
 372   if (has_ret) {
 373     print_proxy( "return _RetVal;\n" );
 374   }
 375   indent--;
 376   print_proxy( "}\n");
 377   print_proxy( "\n");
 378 }
 379
 380 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 381                      unsigned int proc_offset)
 382 {
 383   const var_t *arg;
 384   int has_ret = !is_void(type_function_get_rettype(func->type));
 385   int has_full_pointer = is_full_pointer_function(func);
 386
 387   if (is_interpreted_func( iface, func )) return;
 388
 389   indent = 0;
 390   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 391   indent++;
 392   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 393   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 394   print_proxy( "%s * _This;\n", iface->name );
 395   declare_stub_args( proxy, indent, func );
 396   indent--;
 397   print_proxy( "};\n\n" );
 398
 399   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 400   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 401   indent++;
 402   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 403   if (has_full_pointer)
 404     write_full_pointer_free(proxy, indent, func);
 405   indent--;
 406   print_proxy( "}\n\n" );
 407
 408   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 409   indent++;
 410   print_proxy( "IRpcStubBuffer* This,\n");
 411   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 412   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 413   print_proxy( "DWORD* _pdwStubPhase)\n");
 414   indent--;
 415   print_proxy( "{\n");
 416   indent++;
 417   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 418                iface->name, get_name(func) );
 419
 420   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 421
 422   /* FIXME: trace */
 423
 424   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 425   fprintf(proxy, "\n");
 426   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 427
 428   write_parameters_init(proxy, indent, func, "__frame->");
 429
 430   print_proxy("RpcTryFinally\n");
 431   print_proxy("{\n");
 432   indent++;
 433   if (has_full_pointer)
 434     write_full_pointer_init(proxy, indent, func, TRUE);
 435   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 436   indent++;
 437   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 438   indent--;
 439   fprintf(proxy, "\n");
 440
 441   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 442   fprintf(proxy, "\n");
 443
 444   assign_stub_out_args( proxy, indent, func, "__frame->" );
 445
 446   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 447   fprintf(proxy, "\n");
 448   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 449   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 450   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 451   fprintf(proxy, "(__frame->_This");
 452
 453   if (type_get_function_args(func->type))
 454   {
 455       LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 456           fprintf(proxy, ", %s__frame->%s", is_array(arg->type) && !type_array_is_decl_as_ptr(arg->type) ? "*" :"" , arg->name);
 457   }
 458   fprintf(proxy, ");\n");
 459   fprintf(proxy, "\n");
 460   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 461   fprintf(proxy, "\n");
 462
 463   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 464
 465   if (!is_void(type_function_get_rettype(func->type)))
 466     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 467
 468   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 469
 470   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 471   fprintf(proxy, "\n");
 472
 473   /* marshall the return value */
 474   if (!is_void(type_function_get_rettype(func->type)))
 475     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 476
 477   indent--;
 478   print_proxy("}\n");
 479   print_proxy("RpcFinally\n");
 480   print_proxy("{\n");
 481   indent++;
 482   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 483   indent--;
 484   print_proxy("}\n");
 485   print_proxy("RpcEndFinally\n");
 486
 487   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 488   indent--;
 489
 490   print_proxy("}\n");
 491   print_proxy("\n");
 492 }
 493
 494 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 495 {
 496     int has_ret = !is_void( type_function_get_rettype( func->type ));
 497     const var_t *arg, *callas = is_callas( func->attrs );
 498     const var_list_t *args = type_get_function_args( func->type );
 499
 500     indent = 0;
 501     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 502                  iface->name, get_name(func) );
 503     print_proxy( "{\n");
 504     indent++;
 505     write_func_param_struct( proxy, iface, func->type,
 506                              "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
 507     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 508                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 509     indent++;
 510     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 511     {
 512         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 513     }
 514     fprintf( proxy, " );\n" );
 515     indent--;
 516     indent--;
 517     print_proxy( "}\n\n");
 518 }
 519
 520 int count_methods(const type_t *iface)
 521 {
 522     const statement_t *stmt;
 523     int count = 0;
 524
 525     if (type_iface_get_inherit(iface))
 526         count = count_methods(type_iface_get_inherit(iface));
 527
 528     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 529         const var_t *func = stmt->u.var;
 530         if (!is_callas(func->attrs)) count++;
 531     }
 532     return count;
 533 }
 534
 535 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 536 {
 537   const statement_t * source;
 538   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 539     const var_t * cas = is_callas(source->u.var->attrs );
 540     if (cas && !strcmp(def->name, cas->name))
 541       return source;
 542   }
 543   return NULL;
 544 }
 545
 546 static int write_proxy_methods(type_t *iface, int skip)
 547 {
 548   const statement_t *stmt;
 549   int i = 0;
 550
 551   if (type_iface_get_inherit(iface))
 552     i = write_proxy_methods(type_iface_get_inherit(iface),
 553                             need_delegation(iface));
 554   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 555     const var_t *func = stmt->u.var;
 556     if (!is_callas(func->attrs)) {
 557       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 558           print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 559       else if (is_interpreted_func( iface, func ) &&
 560                !is_local( func->attrs ) &&
 561                type_iface_get_inherit(iface))
 562           print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 563       else
 564           print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 565       i++;
 566     }
 567   }
 568   return i;
 569 }
 570
 571 static int write_stub_methods(type_t *iface, int skip)
 572 {
 573   const statement_t *stmt;
 574   int i = 0;
 575
 576   if (type_iface_get_inherit(iface))
 577     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 578   else
 579     return i; /* skip IUnknown */
 580
 581   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 582     const var_t *func = stmt->u.var;
 583     if (!is_callas(func->attrs)) {
 584       int missing = 0;
 585       const char * fname = get_name(func);
 586       if(is_local(func->attrs)) {
 587         const statement_t * callas_source = get_callas_source(iface, func);
 588         if(!callas_source)
 589           missing = 1;
 590         else
 591           fname = get_name(callas_source->u.var);
 592       }
 593       if (i) fprintf(proxy,",\n");
 594       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 595       else if (is_interpreted_func( iface, func ))
 596           print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 597       else print_proxy( "%s_%s_Stub", iface->name, fname);
 598       i++;
 599     }
 600   }
 601   return i;
 602 }
 603
 604 static void write_thunk_methods( type_t *iface )
 605 {
 606     const statement_t *stmt;
 607     int i = 0;
 608
 609     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 610     {
 611         var_t *func = stmt->u.var;
 612         const var_t *cas = is_callas(func->attrs);
 613
 614         if (is_local( func->attrs )) continue;
 615         if (i) fprintf(proxy, ",\n");
 616         if (cas && is_interpreted_func( iface, func ))
 617             print_proxy( "%s_%s_Thunk", iface->name, func->name );
 618         else
 619             print_proxy( "0" );
 620         i++;
 621     }
 622     fputc( '\n', proxy );
 623 }
 624
 625 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 626 {
 627   int count;
 628   const statement_t *stmt;
 629   int first_func = 1;
 630   int needs_stub_thunks = 0;
 631   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 632
 633   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 634     var_t *func = stmt->u.var;
 635     if (first_func) {
 636       fprintf(proxy, "/*****************************************************************************\n");
 637       fprintf(proxy, " * %s interface\n", iface->name);
 638       fprintf(proxy, " */\n");
 639       first_func = 0;
 640     }
 641     if (!is_local(func->attrs)) {
 642       const var_t *cas = is_callas(func->attrs);
 643       const char *cname = cas ? cas->name : NULL;
 644       int idx = func->type->details.function->idx;
 645       if (cname) {
 646           const statement_t *stmt2;
 647           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 648               const var_t *m = stmt2->u.var;
 649               if (!strcmp(m->name, cname))
 650               {
 651                   idx = m->type->details.function->idx;
 652                   break;
 653               }
 654           }
 655       }
 656       func->procstring_offset = *proc_offset;
 657       gen_proxy(iface, func, idx, *proc_offset);
 658       gen_stub(iface, func, cname, *proc_offset);
 659       if (cas && is_interpreted_func( iface, func ))
 660       {
 661           needs_stub_thunks = 1;
 662           gen_stub_thunk(iface, func, *proc_offset);
 663       }
 664       *proc_offset += get_size_procformatstring_func( iface, func );
 665     }
 666   }
 667
 668   count = count_methods(iface);
 669
 670   write_procformatstring_offsets( proxy, iface );
 671
 672   /* proxy info */
 673   if (get_stub_mode() == MODE_Oif)
 674   {
 675       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 676       print_proxy( "{\n" );
 677       indent++;
 678       print_proxy( "&Object_StubDesc,\n" );
 679       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 680       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 681       print_proxy( "0,\n" );
 682       print_proxy( "0,\n" );
 683       print_proxy( "0\n" );
 684       indent--;
 685       print_proxy( "};\n\n" );
 686   }
 687
 688   /* proxy vtable */
 689   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 690                need_delegation_indirect(iface) ? "" : "const ", count, iface->name);
 691   print_proxy( "{\n");
 692   indent++;
 693   print_proxy( "{\n");
 694   indent++;
 695   if (get_stub_mode() == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
 696   print_proxy( "&IID_%s,\n", iface->name);
 697   indent--;
 698   print_proxy( "},\n");
 699   print_proxy( "{\n");
 700   indent++;
 701   write_proxy_methods(iface, FALSE);
 702   indent--;
 703   print_proxy( "}\n");
 704   indent--;
 705   print_proxy( "};\n\n");
 706
 707   /* stub thunk table */
 708   if (needs_stub_thunks)
 709   {
 710       print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
 711       print_proxy( "{\n");
 712       indent++;
 713       write_thunk_methods( iface );
 714       indent--;
 715       print_proxy( "};\n\n");
 716   }
 717
 718   /* server info */
 719   print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
 720   print_proxy( "{\n" );
 721   indent++;
 722   print_proxy( "&Object_StubDesc,\n" );
 723   print_proxy( "0,\n" );
 724   print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 725   print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 726   if (needs_stub_thunks)
 727       print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
 728   else
 729       print_proxy( "0,\n" );
 730   print_proxy( "0,\n" );
 731   print_proxy( "0,\n" );
 732   print_proxy( "0\n" );
 733   indent--;
 734   print_proxy( "};\n\n" );
 735
 736   /* stub vtable */
 737   if (needs_inline_stubs)
 738   {
 739       print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 740       print_proxy( "{\n");
 741       indent++;
 742       write_stub_methods(iface, FALSE);
 743       fprintf(proxy, "\n");
 744       indent--;
 745       fprintf(proxy, "};\n\n");
 746   }
 747   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 748                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 749   print_proxy( "{\n");
 750   indent++;
 751   print_proxy( "{\n");
 752   indent++;
 753   print_proxy( "&IID_%s,\n", iface->name);
 754   print_proxy( "&%s_ServerInfo,\n", iface->name );
 755   print_proxy( "%d,\n", count);
 756   if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
 757   else print_proxy( "0\n" );
 758   indent--;
 759   print_proxy( "},\n");
 760   print_proxy( "{\n");
 761   indent++;
 762   print_proxy( "CStdStubBuffer_%s\n", need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 763   indent--;
 764   print_proxy( "}\n");
 765   indent--;
 766   print_proxy( "};\n");
 767   print_proxy( "\n");
 768 }
 769
 770 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 771 {
 772   const statement_t *stmt;
 773
 774   if (stmts)
 775     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 776     {
 777       if (stmt->type == STMT_LIBRARY)
 778       {
 779           if (does_any_iface(stmt->u.lib->stmts, pred))
 780               return TRUE;
 781       }
 782       else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 783       {
 784         if (pred(stmt->u.type))
 785           return TRUE;
 786       }
 787     }
 788
 789   return FALSE;
 790 }
 791
 792 int need_proxy(const type_t *iface)
 793 {
 794     if (!is_object( iface )) return 0;
 795     if (is_local( iface->attrs )) return 0;
 796     if (is_attr( iface->attrs, ATTR_OLEAUTOMATION )) return 0;
 797     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 798     return 1;
 799 }
 800
 801 int need_stub(const type_t *iface)
 802 {
 803   return !is_object(iface) && !is_local(iface->attrs);
 804 }
 805
 806 int need_proxy_file(const statement_list_t *stmts)
 807 {
 808   return does_any_iface(stmts, need_proxy);
 809 }
 810
 811 int need_inline_stubs(const type_t *iface)
 812 {
 813     const statement_t *stmt;
 814
 815     if (get_stub_mode() == MODE_Os) return 1;
 816
 817     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 818     {
 819         const var_t *func = stmt->u.var;
 820         if (is_local( func->attrs )) continue;
 821         if (!is_interpreted_func( iface, func )) return 1;
 822     }
 823     return 0;
 824 }
 825
 826 static int need_proxy_and_inline_stubs(const type_t *iface)
 827 {
 828     const statement_t *stmt;
 829
 830     if (!need_proxy( iface )) return 0;
 831     if (get_stub_mode() == MODE_Os) return 1;
 832
 833     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 834     {
 835         const var_t *func = stmt->u.var;
 836         if (is_local( func->attrs )) continue;
 837         if (!is_interpreted_func( iface, func )) return 1;
 838     }
 839     return 0;
 840 }
 841
 842 int need_stub_files(const statement_list_t *stmts)
 843 {
 844   return does_any_iface(stmts, need_stub);
 845 }
 846
 847 int need_inline_stubs_file(const statement_list_t *stmts)
 848 {
 849   return does_any_iface(stmts, need_inline_stubs);
 850 }
 851
 852 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 853 {
 854   const statement_t *stmt;
 855   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 856   {
 857     if (stmt->type == STMT_LIBRARY)
 858       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 859     else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 860     {
 861       if (need_proxy(stmt->u.type))
 862         write_proxy(stmt->u.type, proc_offset);
 863     }
 864   }
 865 }
 866
 867 static int cmp_iid( const void *ptr1, const void *ptr2 )
 868 {
 869     const type_t * const *iface1 = ptr1;
 870     const type_t * const *iface2 = ptr2;
 871     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 872     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 873     return memcmp( uuid1, uuid2, sizeof(UUID) );
 874 }
 875
 876 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 877 {
 878     const statement_t *stmt;
 879
 880     if (!stmts) return;
 881     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 882     {
 883         if (stmt->type == STMT_LIBRARY)
 884             build_iface_list(stmt->u.lib->stmts, ifaces, count);
 885         else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 886         {
 887             type_t *iface = stmt->u.type;
 888             if (type_iface_get_inherit(iface) && need_proxy(iface))
 889             {
 890                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 891                 (*ifaces)[(*count)++] = iface;
 892             }
 893         }
 894     }
 895 }
 896
 897 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 898 {
 899     type_t **ifaces = NULL;
 900
 901     *count = 0;
 902     build_iface_list( stmts, &ifaces, count );
 903     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 904     return ifaces;
 905 }
 906
 907 static void write_proxy_routines(const statement_list_t *stmts)
 908 {
 909   int expr_eval_routines;
 910   unsigned int proc_offset = 0;
 911   char *file_id = proxy_token;
 912   int i, count, have_baseiid;
 913   type_t **interfaces;
 914   const type_t * delegate_to;
 915
 916   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 917   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
 918   print_proxy( "#endif\n");
 919   print_proxy( "\n");
 920   if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 921   print_proxy( "#include \"rpcproxy.h\"\n");
 922   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 923   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 924   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 925   print_proxy( "\n");
 926   print_proxy( "#include \"%s\"\n", header_name);
 927   print_proxy( "\n");
 928
 929   if (does_any_iface(stmts, need_proxy_and_inline_stubs))
 930   {
 931       write_exceptions( proxy );
 932       print_proxy( "\n");
 933       print_proxy( "struct __proxy_frame\n");
 934       print_proxy( "{\n");
 935       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 936       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 937       print_proxy( "    void             *This;\n");
 938       print_proxy( "};\n");
 939       print_proxy( "\n");
 940       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 941       print_proxy( "{\n");
 942       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 943       print_proxy( "}\n");
 944       print_proxy( "\n");
 945   }
 946
 947   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 948   write_stubdescproto();
 949   write_proxy_stmts(stmts, &proc_offset);
 950
 951   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 952   if (expr_eval_routines)
 953       write_expr_eval_routine_list(proxy, proxy_token);
 954   write_user_quad_list(proxy);
 955   write_stubdesc(expr_eval_routines);
 956
 957   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 958   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 959   print_proxy( "#endif\n");
 960   print_proxy( "\n");
 961   write_procformatstring(proxy, stmts, need_proxy);
 962   write_typeformatstring(proxy, stmts, need_proxy);
 963
 964   interfaces = sort_interfaces(stmts, &count);
 965   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 966   fprintf(proxy, "{\n");
 967   for (i = 0; i < count; i++)
 968       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 969   fprintf(proxy, "    0\n");
 970   fprintf(proxy, "};\n");
 971   fprintf(proxy, "\n");
 972
 973   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 974   fprintf(proxy, "{\n");
 975   for (i = 0; i < count; i++)
 976       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 977   fprintf(proxy, "    0\n");
 978   fprintf(proxy, "};\n");
 979   fprintf(proxy, "\n");
 980
 981   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 982   fprintf(proxy, "{\n");
 983   for (i = 0; i < count; i++)
 984       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 985   fprintf(proxy, "    0\n");
 986   fprintf(proxy, "};\n");
 987   fprintf(proxy, "\n");
 988
 989   if ((have_baseiid = does_any_iface(stmts, need_delegation_indirect)))
 990   {
 991       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 992       fprintf(proxy, "{\n");
 993       for (i = 0; i < count; i++)
 994       {
 995           if (get_delegation_indirect(interfaces[i], &delegate_to))
 996               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 997           else
 998               fprintf( proxy, "    0,\n" );
 999       }
1000       fprintf(proxy, "    0\n");
1001       fprintf(proxy, "};\n");
1002       fprintf(proxy, "\n");
1003   }
1004
1005   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
1006   fprintf(proxy, "{\n");
1007   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
1008   fprintf(proxy, "\n");
1009   fprintf(proxy, "    while (low <= high)\n");
1010   fprintf(proxy, "    {\n");
1011   fprintf(proxy, "        int pos = (low + high) / 2;\n");
1012   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
1013   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
1014   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
1015   fprintf(proxy, "        else high = pos - 1;\n");
1016   fprintf(proxy, "    }\n");
1017   fprintf(proxy, "    return 0;\n");
1018   fprintf(proxy, "}\n");
1019   fprintf(proxy, "\n");
1020
1021   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
1022   fprintf(proxy, "{\n");
1023   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
1024   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
1025   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
1026   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
1027   else fprintf(proxy, "    0,\n");
1028   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1029   fprintf(proxy, "    %d,\n", count);
1030   fprintf(proxy, "    %d,\n", get_stub_mode() == MODE_Oif ? 2 : 1);
1031   fprintf(proxy, "    0,\n");
1032   fprintf(proxy, "    0,\n");
1033   fprintf(proxy, "    0,\n");
1034   fprintf(proxy, "    0\n");
1035   fprintf(proxy, "};\n");
1036 }
1037
1038 void write_proxies(const statement_list_t *stmts)
1039 {
1040   if (!do_proxies) return;
1041   if (do_everything && !need_proxy_file(stmts)) return;
1042
1043   init_proxy(stmts);
1044   if(!proxy) return;
1045
1046   if (do_win32 && do_win64)
1047   {
1048       fprintf(proxy, "\n#ifndef _WIN64\n\n");
1049       pointer_size = 4;
1050       write_proxy_routines( stmts );
1051       fprintf(proxy, "\n#else /* _WIN64 */\n\n");
1052       pointer_size = 8;
1053       write_proxy_routines( stmts );
1054       fprintf(proxy, "\n#endif /* _WIN64 */\n");
1055   }
1056   else if (do_win32)
1057   {
1058       pointer_size = 4;
1059       write_proxy_routines( stmts );
1060   }
1061   else if (do_win64)
1062   {
1063       pointer_size = 8;
1064       write_proxy_routines( stmts );
1065   }
1066
1067   fclose(proxy);
1068 }