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", 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( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
  99   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ 440\n");
 100   print_proxy( "#endif /* __REDQ_RPCPROXY_H_VERSION__ */\n");
 101   print_proxy( "\n");
 102   print_proxy( "#define __midl_proxy\n");
 103   if (stub_mode == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 104   print_proxy( "#include \"objbase.h\"\n");
 105   print_proxy( "#include \"rpcproxy.h\"\n");
 106   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 107   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 108   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 109   print_proxy( "\n");
 110   print_proxy( "#include \"%s\"\n", header_name);
 111   print_proxy( "\n");
 112   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
 113   print_proxy( "#define DECLSPEC_HIDDEN\n");
 114   print_proxy( "#endif\n");
 115   print_proxy( "\n");
 116 }
 117
 118 static void clear_output_vars( const var_list_t *args )
 119 {
 120   const var_t *arg;
 121
 122   if (!args) return;
 123   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 124   {
 125     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 126       print_proxy( "if(%s)\n", arg->name );
 127       indent++;
 128       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 129       indent--;
 130     }
 131   }
 132 }
 133
 134 int is_var_ptr(const var_t *v)
 135 {
 136   return is_ptr(v->type);
 137 }
 138
 139 int cant_be_null(const var_t *v)
 140 {
 141     switch (typegen_detect_type(v->type, v->attrs, TDT_IGNORE_STRINGS))
 142     {
 143     case TGT_ARRAY:
 144     case TGT_POINTER:
 145         return (get_pointer_fc(v->type, v->attrs, TRUE) == RPC_FC_RP);
 146     case TGT_CTXT_HANDLE_POINTER:
 147         return TRUE;
 148     default:
 149         return 0;
 150     }
 151
 152 }
 153
 154 static int need_delegation(const type_t *iface)
 155 {
 156     return type_iface_get_inherit(iface) &&
 157            type_iface_get_inherit(type_iface_get_inherit(iface)) &&
 158            type_iface_get_inherit(iface)->ignore;
 159 }
 160
 161 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 162 {
 163   const type_t * cur_iface;
 164   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 165     if (need_delegation(cur_iface))
 166     {
 167       if(delegate_to)
 168         *delegate_to = type_iface_get_inherit(cur_iface);
 169       return 1;
 170     }
 171   return 0;
 172 }
 173
 174 static int need_delegation_indirect(const type_t *iface)
 175 {
 176   return get_delegation_indirect(iface, NULL);
 177 }
 178
 179 static void proxy_check_pointers( const var_list_t *args )
 180 {
 181   const var_t *arg;
 182
 183   if (!args) return;
 184   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 185   {
 186     if (is_var_ptr(arg) && cant_be_null(arg)) {
 187         print_proxy( "if(!%s)\n", arg->name );
 188         indent++;
 189         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 190         indent--;
 191     }
 192   }
 193 }
 194
 195 static void free_variable( const var_t *arg, const char *local_var_prefix )
 196 {
 197   unsigned int type_offset = arg->type->typestring_offset;
 198   expr_t *iid;
 199   type_t *type = arg->type;
 200   expr_t *size = get_size_is_expr(type, arg->name);
 201
 202   if (size)
 203   {
 204     print_proxy( "__frame->_StubMsg.MaxCount = " );
 205     write_expr(proxy, size, 0, 1, NULL, NULL, local_var_prefix);
 206     fprintf(proxy, ";\n\n");
 207     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 208     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 209     fprintf(proxy, "(void*)%s );\n", arg->name );
 210     return;
 211   }
 212
 213   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 214   {
 215   case TGT_ENUM:
 216   case TGT_BASIC:
 217     break;
 218
 219   case TGT_STRUCT:
 220     if (get_struct_fc(type) != RPC_FC_STRUCT)
 221       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 222     break;
 223
 224   case TGT_IFACE_POINTER:
 225     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 226     if( iid )
 227     {
 228       print_proxy( "__frame->_StubMsg.MaxCount = (ULONG_PTR) " );
 229       write_expr(proxy, iid, 1, 1, NULL, NULL, local_var_prefix);
 230       print_proxy( ";\n\n" );
 231     }
 232     /* fall through */
 233   case TGT_POINTER:
 234     if (get_pointer_fc(type, arg->attrs, TRUE) == RPC_FC_FP)
 235     {
 236       print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 237       fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 238       fprintf(proxy, "(void*)%s );\n", arg->name );
 239     }
 240     else
 241       print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 242     break;
 243
 244   default:
 245     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 246   }
 247 }
 248
 249 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 250 {
 251   const var_t *arg;
 252
 253   if (!args) return;
 254   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 255     if (is_attr(arg->attrs, ATTR_OUT))
 256     {
 257       free_variable( arg, local_var_prefix );
 258       fprintf(proxy, "\n");
 259     }
 260 }
 261
 262 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 263                       unsigned int proc_offset)
 264 {
 265   type_t *rettype = type_function_get_rettype(func->type);
 266   int has_ret = !is_void(rettype);
 267   int has_full_pointer = is_full_pointer_function(func);
 268   const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 269   const var_list_t *args = type_get_function_args(func->type);
 270   if (!callconv) callconv = "STDMETHODCALLTYPE";
 271
 272   indent = 0;
 273   if (is_interpreted_func( iface, func ))
 274   {
 275       if (stub_mode == MODE_Oif && !is_callas( func->attrs )) return;
 276       write_type_decl_left(proxy, type_function_get_rettype(func->type));
 277       print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 278       write_args(proxy, args, iface->name, 1, TRUE);
 279       print_proxy( ")\n");
 280       print_proxy( "{\n");
 281       indent++;
 282       if (has_ret) print_proxy( "%s", "CLIENT_CALL_RETURN _RetVal;\n\n" );
 283       print_proxy( "%s%s( &Object_StubDesc, &__MIDL_ProcFormatString.Format[%u], ",
 284                    has_ret ? "_RetVal = " : "",
 285                    stub_mode == MODE_Oif ? "NdrClientCall2" : "NdrClientCall",
 286                    proc_offset );
 287       fprintf( proxy, "(unsigned char *)&This );\n" );
 288       if (has_ret)
 289       {
 290           print_proxy( "return (" );
 291           write_type_decl_left(proxy, rettype);
 292           fprintf( proxy, ")*(LONG_PTR *)&_RetVal;\n" );
 293       }
 294       indent--;
 295       print_proxy( "}\n\n");
 296       return;
 297   }
 298   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 299                iface->name, get_name(func) );
 300   print_proxy( "{\n");
 301   indent++;
 302   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 303   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 304   indent--;
 305   print_proxy( "}\n");
 306   print_proxy( "\n");
 307
 308   write_type_decl_left(proxy, rettype);
 309   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 310   write_args(proxy, args, iface->name, 1, TRUE);
 311   print_proxy( ")\n");
 312   print_proxy( "{\n");
 313   indent ++;
 314   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 315   /* local variables */
 316   if (has_ret) {
 317     print_proxy( "%s", "" );
 318     write_type_decl_left(proxy, rettype);
 319     print_proxy( " _RetVal;\n");
 320   }
 321   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 322   if (has_ret) {
 323     if (decl_indirect(rettype))
 324       print_proxy("void *_p_%s = &%s;\n",
 325                  "_RetVal", "_RetVal");
 326   }
 327   print_proxy( "\n");
 328
 329   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 330   print_proxy( "__frame->This = This;\n" );
 331
 332   if (has_full_pointer)
 333     write_full_pointer_init(proxy, indent, func, FALSE);
 334
 335   /* FIXME: trace */
 336   clear_output_vars( type_get_function_args(func->type) );
 337
 338   print_proxy( "RpcTryExcept\n" );
 339   print_proxy( "{\n" );
 340   indent++;
 341   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 342   proxy_check_pointers( type_get_function_args(func->type) );
 343
 344   print_proxy( "RpcTryFinally\n" );
 345   print_proxy( "{\n" );
 346   indent++;
 347
 348   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 349
 350   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 351
 352   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 353
 354   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 355   fprintf(proxy, "\n");
 356   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 357   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 358
 359   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 360   indent++;
 361   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 362   indent--;
 363   fprintf(proxy, "\n");
 364
 365   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 366
 367   if (has_ret)
 368   {
 369       if (decl_indirect(rettype))
 370           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 371       else if (is_ptr(rettype) || is_array(rettype))
 372           print_proxy("%s = 0;\n", "_RetVal");
 373       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 374   }
 375
 376   indent--;
 377   print_proxy( "}\n");
 378   print_proxy( "RpcFinally\n" );
 379   print_proxy( "{\n" );
 380   indent++;
 381   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 382   indent--;
 383   print_proxy( "}\n");
 384   print_proxy( "RpcEndFinally\n" );
 385   indent--;
 386   print_proxy( "}\n" );
 387   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 388   print_proxy( "{\n" );
 389   if (has_ret) {
 390     indent++;
 391     proxy_free_variables( type_get_function_args(func->type), "" );
 392     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 393     indent--;
 394   }
 395   print_proxy( "}\n" );
 396   print_proxy( "RpcEndExcept\n" );
 397
 398   if (has_ret) {
 399     print_proxy( "return _RetVal;\n" );
 400   }
 401   indent--;
 402   print_proxy( "}\n");
 403   print_proxy( "\n");
 404 }
 405
 406 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 407                      unsigned int proc_offset)
 408 {
 409   const var_t *arg;
 410   int has_ret = !is_void(type_function_get_rettype(func->type));
 411   int has_full_pointer = is_full_pointer_function(func);
 412
 413   if (is_interpreted_func( iface, func )) return;
 414
 415   indent = 0;
 416   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 417   indent++;
 418   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 419   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 420   print_proxy( "%s * _This;\n", iface->name );
 421   declare_stub_args( proxy, indent, func );
 422   indent--;
 423   print_proxy( "};\n\n" );
 424
 425   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 426   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 427   indent++;
 428   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 429   if (has_full_pointer)
 430     write_full_pointer_free(proxy, indent, func);
 431   indent--;
 432   print_proxy( "}\n\n" );
 433
 434   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 435   indent++;
 436   print_proxy( "IRpcStubBuffer* This,\n");
 437   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 438   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 439   print_proxy( "DWORD* _pdwStubPhase)\n");
 440   indent--;
 441   print_proxy( "{\n");
 442   indent++;
 443   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 444                iface->name, get_name(func) );
 445
 446   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 447
 448   /* FIXME: trace */
 449
 450   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 451   fprintf(proxy, "\n");
 452   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 453
 454   write_parameters_init(proxy, indent, func, "__frame->");
 455
 456   print_proxy("RpcTryFinally\n");
 457   print_proxy("{\n");
 458   indent++;
 459   if (has_full_pointer)
 460     write_full_pointer_init(proxy, indent, func, TRUE);
 461   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 462   indent++;
 463   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 464   indent--;
 465   fprintf(proxy, "\n");
 466
 467   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 468   fprintf(proxy, "\n");
 469
 470   assign_stub_out_args( proxy, indent, func, "__frame->" );
 471
 472   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 473   fprintf(proxy, "\n");
 474   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 475   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 476   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 477   fprintf(proxy, "(__frame->_This");
 478
 479   if (type_get_function_args(func->type))
 480   {
 481       LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 482           fprintf(proxy, ", %s__frame->%s", is_array(arg->type) && !type_array_is_decl_as_ptr(arg->type) ? "*" :"" , arg->name);
 483   }
 484   fprintf(proxy, ");\n");
 485   fprintf(proxy, "\n");
 486   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 487   fprintf(proxy, "\n");
 488
 489   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 490
 491   if (!is_void(type_function_get_rettype(func->type)))
 492     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 493
 494   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 495
 496   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 497   fprintf(proxy, "\n");
 498
 499   /* marshall the return value */
 500   if (!is_void(type_function_get_rettype(func->type)))
 501     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 502
 503   indent--;
 504   print_proxy("}\n");
 505   print_proxy("RpcFinally\n");
 506   print_proxy("{\n");
 507   indent++;
 508   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 509   indent--;
 510   print_proxy("}\n");
 511   print_proxy("RpcEndFinally\n");
 512
 513   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 514   indent--;
 515
 516   print_proxy("}\n");
 517   print_proxy("\n");
 518 }
 519
 520 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 521 {
 522     int has_ret = !is_void( type_function_get_rettype( func->type ));
 523     const var_t *arg, *callas = is_callas( func->attrs );
 524     const var_list_t *args = type_get_function_args( func->type );
 525
 526     indent = 0;
 527     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 528                  iface->name, get_name(func) );
 529     print_proxy( "{\n");
 530     indent++;
 531     write_func_param_struct( proxy, iface, func->type, "pParamStruct" );
 532     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 533                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 534     indent++;
 535     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 536     {
 537         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 538     }
 539     fprintf( proxy, " );\n" );
 540     indent--;
 541     indent--;
 542     print_proxy( "}\n\n");
 543 }
 544
 545 int count_methods(const type_t *iface)
 546 {
 547     const statement_t *stmt;
 548     int count = 0;
 549
 550     if (type_iface_get_inherit(iface))
 551         count = count_methods(type_iface_get_inherit(iface));
 552
 553     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 554         const var_t *func = stmt->u.var;
 555         if (!is_callas(func->attrs)) count++;
 556     }
 557     return count;
 558 }
 559
 560 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 561 {
 562   const statement_t * source;
 563   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 564     const var_t * cas = is_callas(source->u.var->attrs );
 565     if (cas && !strcmp(def->name, cas->name))
 566       return source;
 567   }
 568   return NULL;
 569 }
 570
 571 static int write_proxy_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_proxy_methods(type_iface_get_inherit(iface),
 578                             need_delegation(iface));
 579   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 580     const var_t *func = stmt->u.var;
 581     if (!is_callas(func->attrs)) {
 582       int missing = 0;
 583       const char * fname = get_name(func);
 584       if (is_local(func->attrs)) {
 585         const statement_t * callas_source = get_callas_source(iface, func);
 586         if(!callas_source)
 587           missing = 1;
 588         else
 589           fname = get_name(callas_source->u.var);
 590       }
 591       if (skip || missing) print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 592       else if (is_interpreted_func( iface, func ))
 593       {
 594           if (!is_local( func->attrs ) && type_iface_get_inherit(iface))
 595               print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 596           else
 597               print_proxy( "%s_%s_Proxy,\n", iface->name, fname);
 598       }
 599       else print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 600       i++;
 601     }
 602   }
 603   return i;
 604 }
 605
 606 static int write_stub_methods(type_t *iface, int skip)
 607 {
 608   const statement_t *stmt;
 609   int i = 0;
 610
 611   if (type_iface_get_inherit(iface))
 612     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 613   else
 614     return i; /* skip IUnknown */
 615
 616   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 617     const var_t *func = stmt->u.var;
 618     if (!is_callas(func->attrs)) {
 619       int missing = 0;
 620       const char * fname = get_name(func);
 621       if(is_local(func->attrs)) {
 622         const statement_t * callas_source = get_callas_source(iface, func);
 623         if(!callas_source)
 624           missing = 1;
 625         else
 626           fname = get_name(callas_source->u.var);
 627       }
 628       if (i) fprintf(proxy,",\n");
 629       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 630       else if (is_interpreted_func( iface, func ))
 631           print_proxy( "(PRPC_STUB_FUNCTION)%s", stub_mode == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 632       else print_proxy( "%s_%s_Stub", iface->name, fname);
 633       i++;
 634     }
 635   }
 636   return i;
 637 }
 638
 639 static void write_thunk_methods( type_t *iface )
 640 {
 641     const statement_t *stmt;
 642     int i = 0;
 643
 644     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 645     {
 646         var_t *func = stmt->u.var;
 647         const var_t *cas = is_callas(func->attrs);
 648
 649         if (is_local( func->attrs )) continue;
 650         if (i) fprintf(proxy, ",\n");
 651         if (cas && is_interpreted_func( iface, func ))
 652             print_proxy( "%s_%s_Thunk", iface->name, func->name );
 653         else
 654             print_proxy( "0" );
 655         i++;
 656     }
 657     fputc( '\n', proxy );
 658 }
 659
 660 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 661 {
 662   int count;
 663   const statement_t *stmt;
 664   int first_func = 1;
 665   int needs_stub_thunks = 0;
 666   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 667
 668   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 669     var_t *func = stmt->u.var;
 670     if (first_func) {
 671       fprintf(proxy, "/*****************************************************************************\n");
 672       fprintf(proxy, " * %s interface\n", iface->name);
 673       fprintf(proxy, " */\n");
 674       first_func = 0;
 675     }
 676     if (!is_local(func->attrs)) {
 677       const var_t *cas = is_callas(func->attrs);
 678       const char *cname = cas ? cas->name : NULL;
 679       int idx = func->type->details.function->idx;
 680       if (cname) {
 681           const statement_t *stmt2;
 682           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 683               const var_t *m = stmt2->u.var;
 684               if (!strcmp(m->name, cname))
 685               {
 686                   idx = m->type->details.function->idx;
 687                   break;
 688               }
 689           }
 690       }
 691       func->procstring_offset = *proc_offset;
 692       gen_proxy(iface, func, idx, *proc_offset);
 693       gen_stub(iface, func, cname, *proc_offset);
 694       if (cas && is_interpreted_func( iface, func ))
 695       {
 696           needs_stub_thunks = 1;
 697           gen_stub_thunk(iface, func, *proc_offset);
 698       }
 699       *proc_offset += get_size_procformatstring_func( iface, func );
 700     }
 701   }
 702
 703   count = count_methods(iface);
 704
 705   write_procformatstring_offsets( proxy, iface );
 706
 707   /* proxy info */
 708   if (stub_mode == MODE_Oif)
 709   {
 710       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 711       print_proxy( "{\n" );
 712       indent++;
 713       print_proxy( "&Object_StubDesc,\n" );
 714       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 715       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 716       print_proxy( "0,\n" );
 717       print_proxy( "0,\n" );
 718       print_proxy( "0\n" );
 719       indent--;
 720       print_proxy( "};\n\n" );
 721   }
 722
 723   /* proxy vtable */
 724   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 725                need_delegation_indirect(iface) ? "" : "const ", count, iface->name);
 726   print_proxy( "{\n");
 727   indent++;
 728   print_proxy( "{\n");
 729   indent++;
 730   if (stub_mode == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
 731   print_proxy( "&IID_%s,\n", iface->name);
 732   indent--;
 733   print_proxy( "},\n");
 734   print_proxy( "{\n");
 735   indent++;
 736   write_proxy_methods(iface, FALSE);
 737   indent--;
 738   print_proxy( "}\n");
 739   indent--;
 740   print_proxy( "};\n\n");
 741
 742   /* stub thunk table */
 743   if (needs_stub_thunks)
 744   {
 745       print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
 746       print_proxy( "{\n");
 747       indent++;
 748       write_thunk_methods( iface );
 749       indent--;
 750       print_proxy( "};\n\n");
 751   }
 752
 753   /* server info */
 754   print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
 755   print_proxy( "{\n" );
 756   indent++;
 757   print_proxy( "&Object_StubDesc,\n" );
 758   print_proxy( "0,\n" );
 759   print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 760   print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 761   if (needs_stub_thunks)
 762       print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
 763   else
 764       print_proxy( "0,\n" );
 765   print_proxy( "0,\n" );
 766   print_proxy( "0,\n" );
 767   print_proxy( "0\n" );
 768   indent--;
 769   print_proxy( "};\n\n" );
 770
 771   /* stub vtable */
 772   if (needs_inline_stubs)
 773   {
 774       print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 775       print_proxy( "{\n");
 776       indent++;
 777       write_stub_methods(iface, FALSE);
 778       fprintf(proxy, "\n");
 779       indent--;
 780       fprintf(proxy, "};\n\n");
 781   }
 782   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 783                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 784   print_proxy( "{\n");
 785   indent++;
 786   print_proxy( "{\n");
 787   indent++;
 788   print_proxy( "&IID_%s,\n", iface->name);
 789   print_proxy( "&%s_ServerInfo,\n", iface->name );
 790   print_proxy( "%d,\n", count);
 791   if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
 792   else print_proxy( "0\n" );
 793   indent--;
 794   print_proxy( "},\n");
 795   print_proxy( "{\n");
 796   indent++;
 797   print_proxy( "CStdStubBuffer_%s\n", need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 798   indent--;
 799   print_proxy( "}\n");
 800   indent--;
 801   print_proxy( "};\n");
 802   print_proxy( "\n");
 803 }
 804
 805 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 806 {
 807   const statement_t *stmt;
 808
 809   if (stmts)
 810     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 811     {
 812       if (stmt->type == STMT_LIBRARY)
 813       {
 814           if (does_any_iface(stmt->u.lib->stmts, pred))
 815               return TRUE;
 816       }
 817       else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 818       {
 819         if (pred(stmt->u.type))
 820           return TRUE;
 821       }
 822     }
 823
 824   return FALSE;
 825 }
 826
 827 int need_proxy(const type_t *iface)
 828 {
 829     if (!is_object( iface )) return 0;
 830     if (is_local( iface->attrs )) return 0;
 831     if (is_attr( iface->attrs, ATTR_OLEAUTOMATION )) return 0;
 832     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 833     return 1;
 834 }
 835
 836 int need_stub(const type_t *iface)
 837 {
 838   return !is_object(iface) && !is_local(iface->attrs);
 839 }
 840
 841 int need_proxy_file(const statement_list_t *stmts)
 842 {
 843   return does_any_iface(stmts, need_proxy);
 844 }
 845
 846 int need_inline_stubs(const type_t *iface)
 847 {
 848     const statement_t *stmt;
 849
 850     if (stub_mode == MODE_Os) return 1;
 851
 852     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 853     {
 854         const var_t *func = stmt->u.var;
 855         if (!is_interpreted_func( iface, func )) return 1;
 856     }
 857     return 0;
 858 }
 859
 860 int need_stub_files(const statement_list_t *stmts)
 861 {
 862   return does_any_iface(stmts, need_stub);
 863 }
 864
 865 int need_inline_stubs_file(const statement_list_t *stmts)
 866 {
 867   return does_any_iface(stmts, need_inline_stubs);
 868 }
 869
 870 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 871 {
 872   const statement_t *stmt;
 873   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 874   {
 875     if (stmt->type == STMT_LIBRARY)
 876       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 877     else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 878     {
 879       if (need_proxy(stmt->u.type))
 880         write_proxy(stmt->u.type, proc_offset);
 881     }
 882   }
 883 }
 884
 885 static int cmp_iid( const void *ptr1, const void *ptr2 )
 886 {
 887     const type_t * const *iface1 = ptr1;
 888     const type_t * const *iface2 = ptr2;
 889     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 890     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 891     return memcmp( uuid1, uuid2, sizeof(UUID) );
 892 }
 893
 894 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 895 {
 896     const statement_t *stmt;
 897
 898     if (!stmts) return;
 899     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 900     {
 901         if (stmt->type == STMT_LIBRARY)
 902             build_iface_list(stmt->u.lib->stmts, ifaces, count);
 903         else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 904         {
 905             type_t *iface = stmt->u.type;
 906             if (type_iface_get_inherit(iface) && need_proxy(iface))
 907             {
 908                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 909                 (*ifaces)[(*count)++] = iface;
 910             }
 911         }
 912     }
 913 }
 914
 915 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 916 {
 917     type_t **ifaces = NULL;
 918
 919     *count = 0;
 920     build_iface_list( stmts, &ifaces, count );
 921     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 922     return ifaces;
 923 }
 924
 925 static void write_proxy_routines(const statement_list_t *stmts)
 926 {
 927   int expr_eval_routines;
 928   unsigned int proc_offset = 0;
 929   char *file_id = proxy_token;
 930   int i, count, have_baseiid;
 931   type_t **interfaces;
 932   const type_t * delegate_to;
 933
 934   if (need_inline_stubs_file( stmts ))
 935   {
 936       write_exceptions( proxy );
 937       print_proxy( "\n");
 938       print_proxy( "struct __proxy_frame\n");
 939       print_proxy( "{\n");
 940       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 941       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 942       print_proxy( "    void             *This;\n");
 943       print_proxy( "};\n");
 944       print_proxy( "\n");
 945       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 946       print_proxy( "{\n");
 947       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 948       print_proxy( "}\n");
 949       print_proxy( "\n");
 950   }
 951
 952   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 953   write_stubdescproto();
 954   write_proxy_stmts(stmts, &proc_offset);
 955
 956   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 957   if (expr_eval_routines)
 958       write_expr_eval_routine_list(proxy, proxy_token);
 959   write_user_quad_list(proxy);
 960   write_stubdesc(expr_eval_routines);
 961
 962   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 963   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 964   print_proxy( "#endif\n");
 965   print_proxy( "\n");
 966   write_procformatstring(proxy, stmts, need_proxy);
 967   write_typeformatstring(proxy, stmts, need_proxy);
 968
 969   interfaces = sort_interfaces(stmts, &count);
 970   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 971   fprintf(proxy, "{\n");
 972   for (i = 0; i < count; i++)
 973       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 974   fprintf(proxy, "    0\n");
 975   fprintf(proxy, "};\n");
 976   fprintf(proxy, "\n");
 977
 978   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 979   fprintf(proxy, "{\n");
 980   for (i = 0; i < count; i++)
 981       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 982   fprintf(proxy, "    0\n");
 983   fprintf(proxy, "};\n");
 984   fprintf(proxy, "\n");
 985
 986   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 987   fprintf(proxy, "{\n");
 988   for (i = 0; i < count; i++)
 989       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 990   fprintf(proxy, "    0\n");
 991   fprintf(proxy, "};\n");
 992   fprintf(proxy, "\n");
 993
 994   if ((have_baseiid = does_any_iface(stmts, need_delegation_indirect)))
 995   {
 996       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 997       fprintf(proxy, "{\n");
 998       for (i = 0; i < count; i++)
 999       {
1000           if (get_delegation_indirect(interfaces[i], &delegate_to))
1001               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
1002           else
1003               fprintf( proxy, "    0,\n" );
1004       }
1005       fprintf(proxy, "    0\n");
1006       fprintf(proxy, "};\n");
1007       fprintf(proxy, "\n");
1008   }
1009
1010   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
1011   fprintf(proxy, "{\n");
1012   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
1013   fprintf(proxy, "\n");
1014   fprintf(proxy, "    while (low <= high)\n");
1015   fprintf(proxy, "    {\n");
1016   fprintf(proxy, "        int pos = (low + high) / 2;\n");
1017   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
1018   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
1019   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
1020   fprintf(proxy, "        else high = pos - 1;\n");
1021   fprintf(proxy, "    }\n");
1022   fprintf(proxy, "    return 0;\n");
1023   fprintf(proxy, "}\n");
1024   fprintf(proxy, "\n");
1025
1026   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
1027   fprintf(proxy, "{\n");
1028   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
1029   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
1030   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
1031   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
1032   else fprintf(proxy, "    0,\n");
1033   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1034   fprintf(proxy, "    %d,\n", count);
1035   fprintf(proxy, "    %d,\n", stub_mode == MODE_Oif ? 2 : 1);
1036   fprintf(proxy, "    0,\n");
1037   fprintf(proxy, "    0,\n");
1038   fprintf(proxy, "    0,\n");
1039   fprintf(proxy, "    0\n");
1040   fprintf(proxy, "};\n");
1041 }
1042
1043 void write_proxies(const statement_list_t *stmts)
1044 {
1045   if (!do_proxies) return;
1046   if (do_everything && !need_proxy_file(stmts)) return;
1047
1048   init_proxy(stmts);
1049   if(!proxy) return;
1050
1051   if (do_win32 && do_win64)
1052   {
1053       fprintf(proxy, "\n#ifndef _WIN64\n\n");
1054       pointer_size = 4;
1055       write_proxy_routines( stmts );
1056       fprintf(proxy, "\n#else /* _WIN64 */\n\n");
1057       pointer_size = 8;
1058       write_proxy_routines( stmts );
1059       fprintf(proxy, "\n#endif /* _WIN64 */\n");
1060   }
1061   else if (do_win32)
1062   {
1063       pointer_size = 4;
1064       write_proxy_routines( stmts );
1065   }
1066   else if (do_win64)
1067   {
1068       pointer_size = 8;
1069       write_proxy_routines( stmts );
1070   }
1071
1072   fclose(proxy);
1073 }