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