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, ... ) __attribute__((format (printf, 1, 2)));
  54 static void print_proxy( const char *format, ... )
  55 {
  56   va_list va;
  57   va_start( va, format );
  58   print( proxy, indent, format, va );
  59   va_end( va );
  60 }
  61
  62 static void write_stubdescproto(void)
  63 {
  64   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  65   print_proxy( "\n");
  66 }
  67
  68 static void write_stubdesc(int expr_eval_routines)
  69 {
  70   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  71   indent++;
  72   print_proxy( "0,\n");
  73   print_proxy( "NdrOleAllocate,\n");
  74   print_proxy( "NdrOleFree,\n");
  75   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  76   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  77   print_proxy( "1, /* -error bounds_check flag */\n");
  78   print_proxy( "0x10001, /* Ndr library version */\n");
  79   print_proxy( "0,\n");
  80   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  81   print_proxy( "0,\n");
  82   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  83   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  84   print_proxy( "1,  /* Flags */\n");
  85   print_proxy( "0,  /* Reserved3 */\n");
  86   print_proxy( "0,  /* Reserved4 */\n");
  87   print_proxy( "0   /* Reserved5 */\n");
  88   indent--;
  89   print_proxy( "};\n");
  90   print_proxy( "\n");
  91 }
  92
  93 static void init_proxy(const statement_list_t *stmts)
  94 {
  95   if (proxy) return;
  96   if(!(proxy = fopen(proxy_name, "w")))
  97     error("Could not open %s for output\n", proxy_name);
  98   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  99   print_proxy( "\n");
 100   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 101   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ 440\n");
 102   print_proxy( "#endif /* __REDQ_RPCPROXY_H_VERSION__ */\n");
 103   print_proxy( "\n");
 104   print_proxy( "#define __midl_proxy\n");
 105   print_proxy( "#include \"objbase.h\"\n");
 106   print_proxy( "#include \"rpcproxy.h\"\n");
 107   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 108   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 109   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 110   print_proxy( "\n");
 111   print_proxy( "#include \"%s\"\n", header_name);
 112   print_proxy( "\n");
 113   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
 114   print_proxy( "#define DECLSPEC_HIDDEN\n");
 115   print_proxy( "#endif\n");
 116   print_proxy( "\n");
 117   write_exceptions( proxy );
 118   print_proxy( "\n");
 119   print_proxy( "struct __proxy_frame\n");
 120   print_proxy( "{\n");
 121   print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 122   print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 123   print_proxy( "    void             *This;\n");
 124   print_proxy( "};\n");
 125   print_proxy( "\n");
 126   print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 127   print_proxy( "{\n");
 128   print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 129   print_proxy( "}\n");
 130   print_proxy( "\n");
 131 }
 132
 133 static void clear_output_vars( const var_list_t *args )
 134 {
 135   const var_t *arg;
 136
 137   if (!args) return;
 138   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 139   {
 140     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 141       print_proxy( "if(%s)\n", arg->name );
 142       indent++;
 143       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 144       indent--;
 145     }
 146   }
 147 }
 148
 149 int is_var_ptr(const var_t *v)
 150 {
 151   return is_ptr(v->type);
 152 }
 153
 154 int cant_be_null(const var_t *v)
 155 {
 156     switch (typegen_detect_type(v->type, v->attrs, TDT_IGNORE_STRINGS))
 157     {
 158     case TGT_ARRAY:
 159         /* FIXME: work out pointer type */
 160         return 0;
 161     case TGT_POINTER:
 162         return (get_pointer_fc(v->type) == RPC_FC_RP);
 163     case TGT_CTXT_HANDLE_POINTER:
 164         return TRUE;
 165     default:
 166         return 0;
 167     }
 168
 169 }
 170
 171 static int need_delegation(const type_t *iface)
 172 {
 173     return type_iface_get_inherit(iface) &&
 174            type_iface_get_inherit(type_iface_get_inherit(iface)) &&
 175            type_iface_get_inherit(iface)->ignore;
 176 }
 177
 178 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 179 {
 180   const type_t * cur_iface;
 181   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 182     if (need_delegation(cur_iface))
 183     {
 184       if(delegate_to)
 185         *delegate_to = type_iface_get_inherit(cur_iface);
 186       return 1;
 187     }
 188   return 0;
 189 }
 190
 191 static int need_delegation_indirect(const type_t *iface)
 192 {
 193   return get_delegation_indirect(iface, NULL);
 194 }
 195
 196 static void proxy_check_pointers( const var_list_t *args )
 197 {
 198   const var_t *arg;
 199
 200   if (!args) return;
 201   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 202   {
 203     if (is_var_ptr(arg) && cant_be_null(arg)) {
 204         print_proxy( "if(!%s)\n", arg->name );
 205         indent++;
 206         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 207         indent--;
 208     }
 209   }
 210 }
 211
 212 static void free_variable( const var_t *arg, const char *local_var_prefix )
 213 {
 214   unsigned int type_offset = arg->type->typestring_offset;
 215   expr_t *iid;
 216   type_t *type = arg->type;
 217   expr_t *size = get_size_is_expr(type, arg->name);
 218
 219   if (size)
 220   {
 221     print_proxy( "__frame->_StubMsg.MaxCount = " );
 222     write_expr(proxy, size, 0, 1, NULL, NULL, local_var_prefix);
 223     fprintf(proxy, ";\n\n");
 224     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 225     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 226     fprintf(proxy, "(void*)%s );\n", arg->name );
 227     return;
 228   }
 229
 230   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 231   {
 232   case TGT_ENUM:
 233   case TGT_BASIC:
 234     break;
 235
 236   case TGT_STRUCT:
 237     if (get_struct_fc(type) != RPC_FC_STRUCT)
 238       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 239     break;
 240
 241   case TGT_IFACE_POINTER:
 242     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 243     if( iid )
 244     {
 245       print_proxy( "__frame->_StubMsg.MaxCount = (ULONG_PTR) " );
 246       write_expr(proxy, iid, 1, 1, NULL, NULL, local_var_prefix);
 247       print_proxy( ";\n\n" );
 248     }
 249     /* fall through */
 250   case TGT_POINTER:
 251     if (get_pointer_fc(type) == RPC_FC_FP)
 252     {
 253       print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 254       fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 255       fprintf(proxy, "(void*)%s );\n", arg->name );
 256     }
 257     else
 258       print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 259     break;
 260
 261   default:
 262     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 263   }
 264 }
 265
 266 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 267 {
 268   const var_t *arg;
 269
 270   if (!args) return;
 271   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 272     if (is_attr(arg->attrs, ATTR_OUT))
 273     {
 274       free_variable( arg, local_var_prefix );
 275       fprintf(proxy, "\n");
 276     }
 277 }
 278
 279 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 280                       unsigned int proc_offset)
 281 {
 282   int has_ret = !is_void(type_function_get_rettype(func->type));
 283   int has_full_pointer = is_full_pointer_function(func);
 284   const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 285   if (!callconv) callconv = "";
 286
 287   indent = 0;
 288   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 289                iface->name, get_name(func) );
 290   print_proxy( "{\n");
 291   indent++;
 292   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 293   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 294   indent--;
 295   print_proxy( "}\n");
 296   print_proxy( "\n");
 297
 298   write_type_decl_left(proxy, type_function_get_rettype(func->type));
 299   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 300   write_args(proxy, type_get_function_args(func->type), iface->name, 1, TRUE);
 301   print_proxy( ")\n");
 302   print_proxy( "{\n");
 303   indent ++;
 304   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 305   /* local variables */
 306   if (has_ret) {
 307     print_proxy( "%s", "" );
 308     write_type_decl_left(proxy, type_function_get_rettype(func->type));
 309     print_proxy( " _RetVal;\n");
 310   }
 311   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 312   if (has_ret) {
 313     if (decl_indirect(type_function_get_rettype(func->type)))
 314       print_proxy("void *_p_%s = &%s;\n",
 315                  "_RetVal", "_RetVal");
 316   }
 317   print_proxy( "\n");
 318
 319   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 320   print_proxy( "__frame->This = This;\n" );
 321
 322   if (has_full_pointer)
 323     write_full_pointer_init(proxy, indent, func, FALSE);
 324
 325   /* FIXME: trace */
 326   clear_output_vars( type_get_function_args(func->type) );
 327
 328   print_proxy( "RpcTryExcept\n" );
 329   print_proxy( "{\n" );
 330   indent++;
 331   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 332   proxy_check_pointers( type_get_function_args(func->type) );
 333
 334   print_proxy( "RpcTryFinally\n" );
 335   print_proxy( "{\n" );
 336   indent++;
 337
 338   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 339
 340   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 341
 342   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 343
 344   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 345   fprintf(proxy, "\n");
 346   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 347   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 348
 349   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 350   indent++;
 351   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 352   indent--;
 353   fprintf(proxy, "\n");
 354
 355   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 356
 357   if (has_ret)
 358   {
 359       if (decl_indirect(type_function_get_rettype(func->type)))
 360           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 361       else if (is_ptr(type_function_get_rettype(func->type)) ||
 362                is_array(type_function_get_rettype(func->type)))
 363           print_proxy("%s = 0;\n", "_RetVal");
 364       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 365   }
 366
 367   indent--;
 368   print_proxy( "}\n");
 369   print_proxy( "RpcFinally\n" );
 370   print_proxy( "{\n" );
 371   indent++;
 372   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 373   indent--;
 374   print_proxy( "}\n");
 375   print_proxy( "RpcEndFinally\n" );
 376   indent--;
 377   print_proxy( "}\n" );
 378   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 379   print_proxy( "{\n" );
 380   if (has_ret) {
 381     indent++;
 382     proxy_free_variables( type_get_function_args(func->type), "" );
 383     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 384     indent--;
 385   }
 386   print_proxy( "}\n" );
 387   print_proxy( "RpcEndExcept\n" );
 388
 389   if (has_ret) {
 390     print_proxy( "return _RetVal;\n" );
 391   }
 392   indent--;
 393   print_proxy( "}\n");
 394   print_proxy( "\n");
 395 }
 396
 397 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 398                      unsigned int proc_offset)
 399 {
 400   const var_t *arg;
 401   int has_ret = !is_void(type_function_get_rettype(func->type));
 402   int has_full_pointer = is_full_pointer_function(func);
 403
 404   indent = 0;
 405   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 406   indent++;
 407   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 408   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 409   print_proxy( "%s * _This;\n", iface->name );
 410   declare_stub_args( proxy, indent, func );
 411   indent--;
 412   print_proxy( "};\n\n" );
 413
 414   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 415   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 416   indent++;
 417   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 418   if (has_full_pointer)
 419     write_full_pointer_free(proxy, indent, func);
 420   indent--;
 421   print_proxy( "}\n\n" );
 422
 423   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 424   indent++;
 425   print_proxy( "IRpcStubBuffer* This,\n");
 426   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 427   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 428   print_proxy( "DWORD* _pdwStubPhase)\n");
 429   indent--;
 430   print_proxy( "{\n");
 431   indent++;
 432   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 433                iface->name, get_name(func) );
 434
 435   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 436
 437   /* FIXME: trace */
 438
 439   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 440   fprintf(proxy, "\n");
 441   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 442
 443   write_parameters_init(proxy, indent, func, "__frame->");
 444
 445   print_proxy("RpcTryFinally\n");
 446   print_proxy("{\n");
 447   indent++;
 448   if (has_full_pointer)
 449     write_full_pointer_init(proxy, indent, func, TRUE);
 450   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 451   indent++;
 452   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 453   indent--;
 454   fprintf(proxy, "\n");
 455
 456   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 457   fprintf(proxy, "\n");
 458
 459   assign_stub_out_args( proxy, indent, func, "__frame->" );
 460
 461   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 462   fprintf(proxy, "\n");
 463   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 464   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 465   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 466   fprintf(proxy, "(__frame->_This");
 467
 468   if (type_get_function_args(func->type))
 469   {
 470       LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 471           fprintf(proxy, ", %s__frame->%s", arg->type->declarray ? "*" : "", arg->name);
 472   }
 473   fprintf(proxy, ");\n");
 474   fprintf(proxy, "\n");
 475   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 476   fprintf(proxy, "\n");
 477
 478   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 479
 480   if (!is_void(type_function_get_rettype(func->type)))
 481     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 482
 483   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 484
 485   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 486   fprintf(proxy, "\n");
 487
 488   /* marshall the return value */
 489   if (!is_void(type_function_get_rettype(func->type)))
 490     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 491
 492   indent--;
 493   print_proxy("}\n");
 494   print_proxy("RpcFinally\n");
 495   print_proxy("{\n");
 496   indent++;
 497   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 498   indent--;
 499   print_proxy("}\n");
 500   print_proxy("RpcEndFinally\n");
 501
 502   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 503   indent--;
 504
 505   print_proxy("}\n");
 506   print_proxy("\n");
 507 }
 508
 509 static int count_methods(type_t *iface)
 510 {
 511     const statement_t *stmt;
 512     int count = 0;
 513
 514     if (type_iface_get_inherit(iface))
 515         count = count_methods(type_iface_get_inherit(iface));
 516
 517     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 518         const var_t *func = stmt->u.var;
 519         if (!is_callas(func->attrs)) count++;
 520     }
 521     return count;
 522 }
 523
 524 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 525 {
 526   const statement_t * source;
 527   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 528     const var_t * cas = is_callas(source->u.var->attrs );
 529     if (cas && !strcmp(def->name, cas->name))
 530       return source;
 531   }
 532   return NULL;
 533 }
 534
 535 static int write_proxy_methods(type_t *iface, int skip)
 536 {
 537   const statement_t *stmt;
 538   int i = 0;
 539
 540   if (type_iface_get_inherit(iface))
 541     i = write_proxy_methods(type_iface_get_inherit(iface),
 542                             need_delegation(iface));
 543   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 544     const var_t *func = stmt->u.var;
 545     if (!is_callas(func->attrs)) {
 546       if (i != func->type->details.function->idx )
 547         error("widl internal error: method index mismatch\n");
 548       if (i) fprintf(proxy, ",\n");
 549       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 550            print_proxy( "0  /* %s_%s_Proxy */", iface->name, get_name(func));
 551       else print_proxy( "%s_%s_Proxy", iface->name, get_name(func));
 552       i++;
 553     }
 554   }
 555   return i;
 556 }
 557
 558 static int write_stub_methods(type_t *iface, int skip)
 559 {
 560   const statement_t *stmt;
 561   int i = 0;
 562
 563   if (type_iface_get_inherit(iface))
 564     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 565   else
 566     return i; /* skip IUnknown */
 567
 568   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 569     const var_t *func = stmt->u.var;
 570     if (!is_callas(func->attrs)) {
 571       int missing = 0;
 572       const char * fname = get_name(func);
 573       if(is_local(func->attrs)) {
 574         const statement_t * callas_source = get_callas_source(iface, func);
 575         if(!callas_source)
 576           missing = 1;
 577         else
 578           fname = get_name(callas_source->u.var);
 579       }
 580       if (i) fprintf(proxy,",\n");
 581       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 582       else print_proxy( "%s_%s_Stub", iface->name, fname);
 583       i++;
 584     }
 585   }
 586   return i;
 587 }
 588
 589 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 590 {
 591   int count;
 592   const statement_t *stmt;
 593   int first_func = 1;
 594
 595   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 596
 597   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 598     const var_t *func = stmt->u.var;
 599     if (first_func) {
 600       fprintf(proxy, "/*****************************************************************************\n");
 601       fprintf(proxy, " * %s interface\n", iface->name);
 602       fprintf(proxy, " */\n");
 603       first_func = 0;
 604     }
 605     if (!is_local(func->attrs)) {
 606       const var_t *cas = is_callas(func->attrs);
 607       const char *cname = cas ? cas->name : NULL;
 608       int idx = func->type->details.function->idx;
 609       if (cname) {
 610           const statement_t *stmt2;
 611           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 612               const var_t *m = stmt2->u.var;
 613               if (!strcmp(m->name, cname))
 614               {
 615                   idx = m->type->details.function->idx;
 616                   break;
 617               }
 618           }
 619       }
 620       gen_proxy(iface, func, idx, *proc_offset);
 621       gen_stub(iface, func, cname, *proc_offset);
 622       *proc_offset += get_size_procformatstring_func( func );
 623     }
 624   }
 625
 626   count = count_methods(iface);
 627
 628   /* proxy vtable */
 629   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", count, iface->name);
 630   print_proxy( "{\n");
 631   indent++;
 632   print_proxy( "{\n");
 633   indent++;
 634   print_proxy( "&IID_%s,\n", iface->name);
 635   indent--;
 636   print_proxy( "},\n");
 637   print_proxy( "{\n");
 638   indent++;
 639   write_proxy_methods(iface, FALSE);
 640   fprintf(proxy, "\n");
 641   indent--;
 642   print_proxy( "}\n");
 643   indent--;
 644   print_proxy( "};\n");
 645   fprintf(proxy, "\n\n");
 646
 647   /* stub vtable */
 648   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 649   print_proxy( "{\n");
 650   indent++;
 651   write_stub_methods(iface, FALSE);
 652   fprintf(proxy, "\n");
 653   indent--;
 654   fprintf(proxy, "};\n");
 655   print_proxy( "\n");
 656   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 657                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 658   print_proxy( "{\n");
 659   indent++;
 660   print_proxy( "{\n");
 661   indent++;
 662   print_proxy( "&IID_%s,\n", iface->name);
 663   print_proxy( "0,\n");
 664   print_proxy( "%d,\n", count);
 665   print_proxy( "&%s_table[-3],\n", iface->name);
 666   indent--;
 667   print_proxy( "},\n");
 668   print_proxy( "{\n");
 669   indent++;
 670   print_proxy( "CStdStubBuffer_%s\n", need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 671   indent--;
 672   print_proxy( "}\n");
 673   indent--;
 674   print_proxy( "};\n");
 675   print_proxy( "\n");
 676 }
 677
 678 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 679 {
 680   const statement_t *stmt;
 681
 682   if (stmts)
 683     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 684     {
 685       if (stmt->type == STMT_LIBRARY)
 686       {
 687           if (does_any_iface(stmt->u.lib->stmts, pred))
 688               return TRUE;
 689       }
 690       else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 691       {
 692         if (pred(stmt->u.type))
 693           return TRUE;
 694       }
 695     }
 696
 697   return FALSE;
 698 }
 699
 700 int need_proxy(const type_t *iface)
 701 {
 702   return is_object(iface->attrs) && !is_local(iface->attrs);
 703 }
 704
 705 int need_stub(const type_t *iface)
 706 {
 707   return !is_object(iface->attrs) && !is_local(iface->attrs);
 708 }
 709
 710 int need_proxy_file(const statement_list_t *stmts)
 711 {
 712   return does_any_iface(stmts, need_proxy);
 713 }
 714
 715 int need_stub_files(const statement_list_t *stmts)
 716 {
 717   return does_any_iface(stmts, need_stub);
 718 }
 719
 720 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 721 {
 722   const statement_t *stmt;
 723   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 724   {
 725     if (stmt->type == STMT_LIBRARY)
 726       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 727     else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 728     {
 729       if (need_proxy(stmt->u.type))
 730         write_proxy(stmt->u.type, proc_offset);
 731     }
 732   }
 733 }
 734
 735 static int cmp_iid( const void *ptr1, const void *ptr2 )
 736 {
 737     const type_t * const *iface1 = ptr1;
 738     const type_t * const *iface2 = ptr2;
 739     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 740     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 741     return memcmp( uuid1, uuid2, sizeof(UUID) );
 742 }
 743
 744 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 745 {
 746     const statement_t *stmt;
 747
 748     if (!stmts) return;
 749     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 750     {
 751         if (stmt->type == STMT_LIBRARY)
 752             build_iface_list(stmt->u.lib->stmts, ifaces, count);
 753         else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 754         {
 755             type_t *iface = stmt->u.type;
 756             if (type_iface_get_inherit(iface) && need_proxy(iface))
 757             {
 758                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(*ifaces) );
 759                 (*ifaces)[(*count)++] = iface;
 760             }
 761         }
 762     }
 763 }
 764
 765 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 766 {
 767     type_t **ifaces = NULL;
 768
 769     *count = 0;
 770     build_iface_list( stmts, &ifaces, count );
 771     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 772     return ifaces;
 773 }
 774
 775 static void write_proxy_routines(const statement_list_t *stmts)
 776 {
 777   int expr_eval_routines;
 778   unsigned int proc_offset = 0;
 779
 780   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 781   write_stubdescproto();
 782   write_proxy_stmts(stmts, &proc_offset);
 783
 784   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 785   if (expr_eval_routines)
 786       write_expr_eval_routine_list(proxy, proxy_token);
 787   write_user_quad_list(proxy);
 788   write_stubdesc(expr_eval_routines);
 789
 790   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 791   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 792   print_proxy( "#endif\n");
 793   print_proxy( "\n");
 794   write_procformatstring(proxy, stmts, need_proxy);
 795   write_typeformatstring(proxy, stmts, need_proxy);
 796
 797 }
 798
 799 void write_proxies(const statement_list_t *stmts)
 800 {
 801   char *file_id = proxy_token;
 802   int i, count, have_baseiid;
 803   type_t **interfaces;
 804   const type_t * delegate_to;
 805
 806   if (!do_proxies) return;
 807   if (do_everything && !need_proxy_file(stmts)) return;
 808
 809   init_proxy(stmts);
 810   if(!proxy) return;
 811
 812   if (do_win32 && do_win64)
 813   {
 814       fprintf(proxy, "\n#ifndef _WIN64\n\n");
 815       pointer_size = 4;
 816       write_proxy_routines( stmts );
 817       fprintf(proxy, "\n#else /* _WIN64 */\n\n");
 818       pointer_size = 8;
 819       write_proxy_routines( stmts );
 820       fprintf(proxy, "#endif /* _WIN64 */\n\n");
 821   }
 822   else if (do_win32)
 823   {
 824       pointer_size = 4;
 825       write_proxy_routines( stmts );
 826   }
 827   else if (do_win64)
 828   {
 829       pointer_size = 8;
 830       write_proxy_routines( stmts );
 831   }
 832
 833   interfaces = sort_interfaces(stmts, &count);
 834   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 835   fprintf(proxy, "{\n");
 836   for (i = 0; i < count; i++)
 837       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 838   fprintf(proxy, "    0\n");
 839   fprintf(proxy, "};\n");
 840   fprintf(proxy, "\n");
 841
 842   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 843   fprintf(proxy, "{\n");
 844   for (i = 0; i < count; i++)
 845       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 846   fprintf(proxy, "    0\n");
 847   fprintf(proxy, "};\n");
 848   fprintf(proxy, "\n");
 849
 850   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 851   fprintf(proxy, "{\n");
 852   for (i = 0; i < count; i++)
 853       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 854   fprintf(proxy, "    0\n");
 855   fprintf(proxy, "};\n");
 856   fprintf(proxy, "\n");
 857
 858   if ((have_baseiid = does_any_iface(stmts, need_delegation_indirect)))
 859   {
 860       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 861       fprintf(proxy, "{\n");
 862       for (i = 0; i < count; i++)
 863       {
 864           if (get_delegation_indirect(interfaces[i], &delegate_to))
 865               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 866           else
 867               fprintf( proxy, "    0,\n" );
 868       }
 869       fprintf(proxy, "    0\n");
 870       fprintf(proxy, "};\n");
 871       fprintf(proxy, "\n");
 872   }
 873
 874   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 875   fprintf(proxy, "{\n");
 876   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 877   fprintf(proxy, "\n");
 878   fprintf(proxy, "    while (low <= high)\n");
 879   fprintf(proxy, "    {\n");
 880   fprintf(proxy, "        int pos = (low + high) / 2;\n");
 881   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
 882   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
 883   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
 884   fprintf(proxy, "        else high = pos - 1;\n");
 885   fprintf(proxy, "    }\n");
 886   fprintf(proxy, "    return 0;\n");
 887   fprintf(proxy, "}\n");
 888   fprintf(proxy, "\n");
 889
 890   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
 891   fprintf(proxy, "{\n");
 892   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
 893   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
 894   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 895   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
 896   else fprintf(proxy, "    0,\n");
 897   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
 898   fprintf(proxy, "    %d,\n", count);
 899   fprintf(proxy, "    1,\n");
 900   fprintf(proxy, "    0,\n");
 901   fprintf(proxy, "    0,\n");
 902   fprintf(proxy, "    0,\n");
 903   fprintf(proxy, "    0\n");
 904   fprintf(proxy, "};\n");
 905
 906   fclose(proxy);
 907 }