text: /*
   * IDL Compiler
   *
   * Copyright 2002 Ove Kaaven
   * Copyright 2004 Mike McCormack
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <ctype.h>
  
  #include "widl.h"
  #include "utils.h"
  #include "parser.h"
  #include "header.h"
  #include "typegen.h"
  #include "expr.h"
  
  static FILE* proxy;
  static int indent = 0;
  
  static void print_proxy( const char *format, ... ) __attribute__((format (printf, 1, 2)));
  static void print_proxy( const char *format, ... )
  {
    va_list va;
    va_start( va, format );
    print( proxy, indent, format, va );
    va_end( va );
  }
  
  static void write_stubdescproto(void)
  {
    print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
    print_proxy( "\n");
  }
  
  static void write_stubdesc(int expr_eval_routines)
  {
    print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
    indent++;
    print_proxy( "0,\n");
    print_proxy( "NdrOleAllocate,\n");
    print_proxy( "NdrOleFree,\n");
    print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
    print_proxy( "__MIDL_TypeFormatString.Format,\n");
    print_proxy( "1, /* -error bounds_check flag */\n");
    print_proxy( "0x%x, /* Ndr library version */\n", get_stub_mode() == MODE_Oif ? 0x50002 : 0x10001);
    print_proxy( "0,\n");
    print_proxy( "0x50200ca, /* MIDL Version 5.2.202 */\n");
    print_proxy( "0,\n");
    print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
    print_proxy( "0,  /* notify & notify_flag routine table */\n");
    print_proxy( "1,  /* Flags */\n");
    print_proxy( "0,  /* Reserved3 */\n");
    print_proxy( "0,  /* Reserved4 */\n");
    print_proxy( "0   /* Reserved5 */\n");
    indent--;
    print_proxy( "};\n");
    print_proxy( "\n");
  }
  
  static void init_proxy(const statement_list_t *stmts)
  {
    if (proxy) return;
    if(!(proxy = fopen(proxy_name, "w")))
      error("Could not open %s for output\n", proxy_name);
    print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
    print_proxy( "\n");
    print_proxy( "#define __midl_proxy\n");
    print_proxy( "#include \"objbase.h\"\n");
    print_proxy( "\n");
    print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
    print_proxy( "#define DECLSPEC_HIDDEN\n");
    print_proxy( "#endif\n");
    print_proxy( "\n");
  }
  
  static void clear_output_vars( const var_list_t *args )
  {
    const var_t *arg;
  
    if (!args) return;
    LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
    {
        if (is_attr(arg->attrs, ATTR_IN)) continue;
        if (!is_attr(arg->attrs, ATTR_OUT)) continue;
        if (is_ptr(arg->declspec.type))
        {
            if (type_get_type(type_pointer_get_ref_type(arg->declspec.type)) == TYPE_BASIC) continue;
            if (type_get_type(type_pointer_get_ref_type(arg->declspec.type)) == TYPE_ENUM) continue;
        }
        print_proxy( "if (%s) MIDL_memset( %s, 0, ", arg->name, arg->name );
        if (is_array(arg->declspec.type) && type_array_has_conformance(arg->declspec.type))
        {
            write_expr( proxy, type_array_get_conformance(arg->declspec.type), 1, 1, NULL, NULL, "" );
            fprintf( proxy, " * " );
        }
        fprintf( proxy, "sizeof( *%s ));\n", arg->name );
    }
  }
  
  static int need_delegation(const type_t *iface)
  {
      const type_t *parent = type_iface_get_inherit( iface );
      return parent && type_iface_get_inherit(parent) && (parent->ignore || is_local( parent->attrs ));
  }
  
  static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
  {
    const type_t * cur_iface;
    for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
      if (need_delegation(cur_iface))
      {
        if(delegate_to)
          *delegate_to = type_iface_get_inherit(cur_iface);
        return 1;
      }
    return 0;
  }
  
  static int need_delegation_indirect(const type_t *iface)
  {
    return get_delegation_indirect(iface, NULL);
  }
  
  static void free_variable( const var_t *arg, const char *local_var_prefix )
  {
    unsigned int type_offset = arg->typestring_offset;
    type_t *type = arg->declspec.type;
  
    write_parameter_conf_or_var_exprs(proxy, indent, local_var_prefix, PHASE_FREE, arg, FALSE);
  
    switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
    {
    case TGT_ENUM:
    case TGT_BASIC:
      break;
  
    case TGT_STRUCT:
      if (get_struct_fc(type) != FC_STRUCT)
        print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
      break;
  
    case TGT_IFACE_POINTER:
    case TGT_POINTER:
    case TGT_ARRAY:
      print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
      fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
      fprintf(proxy, "(void *)%s );\n", arg->name );
      break;
  
    default:
      print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
    }
  }
  
  static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
  {
    const var_t *arg;
  
    if (!args) return;
    LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
      if (is_attr(arg->attrs, ATTR_OUT))
      {
        free_variable( arg, local_var_prefix );
        fprintf(proxy, "\n");
      }
  }
  
  static void gen_proxy(type_t *iface, const var_t *func, int idx,
                        unsigned int proc_offset)
  {
    var_t *retval = type_function_get_retval(func->declspec.type);
    int has_ret = !is_void(retval->declspec.type);
    int has_full_pointer = is_full_pointer_function(func);
    const char *callconv = get_attrp(func->declspec.type->attrs, ATTR_CALLCONV);
    const var_list_t *args = type_function_get_args(func->declspec.type);
    if (!callconv) callconv = "STDMETHODCALLTYPE";
  
    indent = 0;
    if (is_interpreted_func( iface, func ))
    {
        if (get_stub_mode() == MODE_Oif && !is_callas( func->attrs )) return;
        write_type_decl_left(proxy, &retval->declspec);
        print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
        write_args(proxy, args, iface->name, 1, TRUE, NAME_DEFAULT);
        print_proxy( ")\n");
        write_client_call_routine( proxy, iface, func, "Object", proc_offset );
        return;
    }
    print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
                 iface->name, get_name(func) );
    print_proxy( "{\n");
    indent++;
    if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
    print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
    indent--;
    print_proxy( "}\n");
    print_proxy( "\n");
  
    write_type_decl_left(proxy, &retval->declspec);
    print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
    write_args(proxy, args, iface->name, 1, TRUE, NAME_DEFAULT);
    print_proxy( ")\n");
    print_proxy( "{\n");
    indent ++;
    print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
    /* local variables */
    if (has_ret) {
      print_proxy( "%s", "" );
      write_type_decl(proxy, &retval->declspec, retval->name);
      fprintf( proxy, ";\n" );
    }
    print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
    if (has_ret) {
      if (decl_indirect(retval->declspec.type))
          print_proxy("void *_p_%s = &%s;\n", retval->name, retval->name);
    }
    print_proxy( "\n");
  
    print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
    print_proxy( "__frame->This = This;\n" );
  
    if (has_full_pointer)
      write_full_pointer_init(proxy, indent, func, FALSE);
  
    /* FIXME: trace */
    clear_output_vars( type_function_get_args(func->declspec.type) );
  
    print_proxy( "RpcTryExcept\n" );
    print_proxy( "{\n" );
    indent++;
    print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
    write_pointer_checks( proxy, indent, func );
  
    print_proxy( "RpcTryFinally\n" );
    print_proxy( "{\n" );
    indent++;
  
    write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
  
    print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
  
    write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
  
    print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
    fprintf(proxy, "\n");
    print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
    print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
  
    print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
    indent++;
    print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
    indent--;
    fprintf(proxy, "\n");
  
    write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
  
    if (has_ret)
    {
        if (decl_indirect(retval->declspec.type))
            print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", retval->name, retval->name);
        else if (is_ptr(retval->declspec.type) || is_array(retval->declspec.type))
            print_proxy("%s = 0;\n", retval->name);
        write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
    }
  
    indent--;
    print_proxy( "}\n");
    print_proxy( "RpcFinally\n" );
    print_proxy( "{\n" );
    indent++;
    print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
    indent--;
    print_proxy( "}\n");
    print_proxy( "RpcEndFinally\n" );
    indent--;
    print_proxy( "}\n" );
    print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
    print_proxy( "{\n" );
    if (has_ret) {
      indent++;
      proxy_free_variables( type_function_get_args(func->declspec.type), "" );
      print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
      indent--;
    }
    print_proxy( "}\n" );
    print_proxy( "RpcEndExcept\n" );
  
    if (has_ret) {
      print_proxy( "return _RetVal;\n" );
    }
    indent--;
    print_proxy( "}\n");
    print_proxy( "\n");
  }
  
  static void gen_stub(type_t *iface, const var_t *func, const char *cas,
                       unsigned int proc_offset)
  {
    const var_t *arg;
    int has_ret = !is_void(type_function_get_rettype(func->declspec.type));
    int has_full_pointer = is_full_pointer_function(func);
  
    if (is_interpreted_func( iface, func )) return;
  
    indent = 0;
    print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
    indent++;
    print_proxy( "__DECL_EXCEPTION_FRAME\n" );
    print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
    print_proxy( "%s * _This;\n", iface->name );
    declare_stub_args( proxy, indent, func );
    indent--;
    print_proxy( "};\n\n" );
  
    print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
    print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
    indent++;
    write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
    if (has_full_pointer)
      write_full_pointer_free(proxy, indent, func);
    indent--;
    print_proxy( "}\n\n" );
  
    print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
    indent++;
    print_proxy( "IRpcStubBuffer* This,\n");
    print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
    print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
    print_proxy( "DWORD* _pdwStubPhase)\n");
    indent--;
    print_proxy( "{\n");
    indent++;
    print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
                 iface->name, get_name(func) );
  
    print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
  
    /* FIXME: trace */
  
    print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
    fprintf(proxy, "\n");
    print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
  
    write_parameters_init(proxy, indent, func, "__frame->");
  
    print_proxy("RpcTryFinally\n");
    print_proxy("{\n");
    indent++;
    if (has_full_pointer)
      write_full_pointer_init(proxy, indent, func, TRUE);
    print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
    indent++;
    print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
    indent--;
    fprintf(proxy, "\n");
  
    write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
    fprintf(proxy, "\n");
  
    assign_stub_out_args( proxy, indent, func, "__frame->" );
  
    print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
    fprintf(proxy, "\n");
    print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
    if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
    else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
    fprintf(proxy, "(__frame->_This");
  
    if (type_function_get_args(func->declspec.type))
    {
        LIST_FOR_EACH_ENTRY( arg, type_function_get_args(func->declspec.type), const var_t, entry )
            fprintf(proxy, ", %s__frame->%s", is_array(arg->declspec.type) && !type_array_is_decl_as_ptr(arg->declspec.type) ? "*" :"" , arg->name);
    }
    fprintf(proxy, ");\n");
    fprintf(proxy, "\n");
    print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
    fprintf(proxy, "\n");
  
    write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
  
    if (!is_void(type_function_get_rettype(func->declspec.type)))
      write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
  
    print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
  
    write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
    fprintf(proxy, "\n");
  
    /* marshall the return value */
    if (!is_void(type_function_get_rettype(func->declspec.type)))
      write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
  
    indent--;
    print_proxy("}\n");
    print_proxy("RpcFinally\n");
    print_proxy("{\n");
    indent++;
    print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
    indent--;
    print_proxy("}\n");
    print_proxy("RpcEndFinally\n");
  
    print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
    indent--;
  
    print_proxy("}\n");
    print_proxy("\n");
  }
  
  static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
  {
      int has_ret = !is_void( type_function_get_rettype( func->declspec.type ));
      const var_t *arg, *callas = is_callas( func->attrs );
      const var_list_t *args = type_function_get_args( func->declspec.type );
  
      indent = 0;
      print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
                   iface->name, get_name(func) );
      print_proxy( "{\n");
      indent++;
      write_func_param_struct( proxy, iface, func->declspec.type,
                               "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
      print_proxy( "%s%s_%s_Stub( pParamStruct->This",
                   has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
      indent++;
      if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
      {
          fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
      }
      fprintf( proxy, " );\n" );
      indent--;
      indent--;
      print_proxy( "}\n\n");
  }
  
  int count_methods(const type_t *iface)
  {
      const statement_t *stmt;
      int count = 0;
  
      if (type_iface_get_inherit(iface))
          count = count_methods(type_iface_get_inherit(iface));
  
      STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
          const var_t *func = stmt->u.var;
          if (!is_callas(func->attrs)) count++;
      }
      return count;
  }
  
  static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
  {
    const statement_t * source;
    STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
      const var_t * cas = is_callas(source->u.var->attrs );
      if (cas && !strcmp(def->name, cas->name))
        return source;
    }
    return NULL;
  }
  
  static void write_proxy_procformatstring_offsets( const type_t *iface, int skip )
  {
      const statement_t *stmt;
  
      if (type_iface_get_inherit(iface))
          write_proxy_procformatstring_offsets( type_iface_get_inherit(iface), need_delegation(iface));
      else
          return;
  
      STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
      {
          const var_t *func = stmt->u.var;
          int missing = 0;
  
          if (is_callas(func->attrs)) continue;
          if (is_local(func->attrs))
          {
              const statement_t * callas_source = get_callas_source(iface, func);
              if (!callas_source)
                  missing = 1;
              else
                  func = callas_source->u.var;
          }
          if (skip || missing)
              print_proxy( "(unsigned short)-1,  /* %s::%s */\n", iface->name, get_name(func));
          else
              print_proxy( "%u,  /* %s::%s */\n", func->procstring_offset, iface->name, get_name(func));
      }
  }
  
  static int write_proxy_methods(type_t *iface, int skip)
  {
    const statement_t *stmt;
    int i = 0;
  
    if (type_iface_get_inherit(iface))
      i = write_proxy_methods(type_iface_get_inherit(iface),
                              need_delegation(iface));
    STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
      const var_t *func = stmt->u.var;
      if (!is_callas(func->attrs)) {
        if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
            print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
        else if (is_interpreted_func( iface, func ) &&
                 get_stub_mode() == MODE_Oif &&
                 !is_local( func->attrs ) &&
                 type_iface_get_inherit(iface))
            print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
        else
            print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
        i++;
      }
    }
    return i;
  }
  
  static int write_stub_methods(type_t *iface, int skip)
  {
    const statement_t *stmt;
    int i = 0;
  
    if (type_iface_get_inherit(iface))
      i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
    else
      return i; /* skip IUnknown */
  
    STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
      const var_t *func = stmt->u.var;
      if (!is_callas(func->attrs)) {
        int missing = 0;
        const char * fname = get_name(func);
        if(is_local(func->attrs)) {
          const statement_t * callas_source = get_callas_source(iface, func);
          if(!callas_source)
            missing = 1;
          else
            fname = get_name(callas_source->u.var);
        }
        if (i) fprintf(proxy,",\n");
        if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
        else if (is_interpreted_func( iface, func ))
            print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
        else print_proxy( "%s_%s_Stub", iface->name, fname);
        i++;
      }
    }
    return i;
  }
  
  static void write_thunk_methods( type_t *iface, int skip )
  {
      const statement_t *stmt;
  
      if (type_iface_get_inherit( iface ))
          write_thunk_methods( type_iface_get_inherit(iface), need_delegation(iface) );
      else
          return; /* skip IUnknown */
  
      STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
      {
          var_t *func = stmt->u.var;
          const statement_t * callas_source = NULL;
  
          if (is_callas(func->attrs)) continue;
          if (is_local(func->attrs)) callas_source = get_callas_source(iface, func);
  
          if (!skip && callas_source && is_interpreted_func( iface, func ))
              print_proxy( "%s_%s_Thunk,\n", iface->name, get_name(callas_source->u.var) );
          else
              print_proxy( "0, /* %s::%s */\n", iface->name, get_name(func) );
      }
  }
  
  static void write_proxy(type_t *iface, unsigned int *proc_offset)
  {
    int count;
    const statement_t *stmt;
    int first_func = 1;
    int needs_stub_thunks = 0;
    int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
  
    STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
      var_t *func = stmt->u.var;
      if (first_func) {
        fprintf(proxy, "/*****************************************************************************\n");
        fprintf(proxy, " * %s interface\n", iface->name);
        fprintf(proxy, " */\n");
        first_func = 0;
      }
      if (!is_local(func->attrs)) {
        const var_t *cas = is_callas(func->attrs);
        const char *cname = cas ? cas->name : NULL;
        int idx = func->func_idx;
        if (cname) {
            const statement_t *stmt2;
            STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
                const var_t *m = stmt2->u.var;
                if (!strcmp(m->name, cname))
                {
                    idx = m->func_idx;
                    break;
                }
            }
        }
        func->procstring_offset = *proc_offset;
        gen_proxy(iface, func, idx, *proc_offset);
        gen_stub(iface, func, cname, *proc_offset);
        if (cas && is_interpreted_func( iface, func ))
        {
            needs_stub_thunks = 1;
            gen_stub_thunk(iface, func, *proc_offset);
        }
        *proc_offset += get_size_procformatstring_func( iface, func );
      }
    }
  
    count = count_methods(iface);
  
    print_proxy( "static const unsigned short %s_FormatStringOffsetTable[] =\n", iface->name );
    print_proxy( "{\n" );
    indent++;
    write_proxy_procformatstring_offsets( iface, 0 );
    indent--;
    print_proxy( "};\n\n" );
  
    /* proxy info */
    if (get_stub_mode() == MODE_Oif)
    {
        print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
        print_proxy( "{\n" );
        indent++;
        print_proxy( "&Object_StubDesc,\n" );
        print_proxy( "__MIDL_ProcFormatString.Format,\n" );
        print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
        print_proxy( "0,\n" );
        print_proxy( "0,\n" );
        print_proxy( "0\n" );
        indent--;
        print_proxy( "};\n\n" );
    }
  
    /* proxy vtable */
    print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
                 (get_stub_mode() != MODE_Os || need_delegation_indirect(iface)) ? "" : "const ",
                 count, iface->name);
    print_proxy( "{\n");
    indent++;
    print_proxy( "{\n");
    indent++;
    if (get_stub_mode() == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
    print_proxy( "&IID_%s,\n", iface->name);
    indent--;
    print_proxy( "},\n");
    print_proxy( "{\n");
    indent++;
    write_proxy_methods(iface, FALSE);
    indent--;
    print_proxy( "}\n");
    indent--;
    print_proxy( "};\n\n");
  
    /* stub thunk table */
    if (needs_stub_thunks)
    {
        print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
        print_proxy( "{\n");
        indent++;
        write_thunk_methods( iface, 0 );
        indent--;
        print_proxy( "};\n\n");
    }
  
    /* server info */
    print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
    print_proxy( "{\n" );
    indent++;
    print_proxy( "&Object_StubDesc,\n" );
    print_proxy( "0,\n" );
    print_proxy( "__MIDL_ProcFormatString.Format,\n" );
    print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
    if (needs_stub_thunks)
        print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
    else
        print_proxy( "0,\n" );
    print_proxy( "0,\n" );
    print_proxy( "0,\n" );
    print_proxy( "0\n" );
    indent--;
    print_proxy( "};\n\n" );
  
    /* stub vtable */
    if (needs_inline_stubs)
    {
        print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
        print_proxy( "{\n");
        indent++;
        write_stub_methods(iface, FALSE);
        fprintf(proxy, "\n");
        indent--;
        fprintf(proxy, "};\n\n");
    }
    print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
                 need_delegation_indirect(iface) ? "" : "const ", iface->name);
    print_proxy( "{\n");
    indent++;
    print_proxy( "{\n");
    indent++;
    print_proxy( "&IID_%s,\n", iface->name);
    print_proxy( "&%s_ServerInfo,\n", iface->name );
    print_proxy( "%d,\n", count);
    if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
    else print_proxy( "0\n" );
    indent--;
    print_proxy( "},\n");
    print_proxy( "{\n");
    indent++;
    print_proxy( "%s_%s\n",
                 type_iface_get_async_iface(iface) == iface ? "CStdAsyncStubBuffer" : "CStdStubBuffer",
                 need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
    indent--;
    print_proxy( "}\n");
    indent--;
    print_proxy( "};\n");
    print_proxy( "\n");
  }
  
  static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
  {
    const statement_t *stmt;
  
    if (stmts)
      LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
      {
        if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
        {
          if (pred(stmt->u.type))
            return TRUE;
        }
      }
  
    return FALSE;
  }
  
  int need_proxy(const type_t *iface)
  {
      if (!is_object( iface )) return 0;
      if (is_local( iface->attrs )) return 0;
      if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
      return 1;
  }
  
  int need_stub(const type_t *iface)
  {
    return !is_object(iface) && !is_local(iface->attrs);
  }
  
  int need_proxy_file(const statement_list_t *stmts)
  {
      return does_any_iface(stmts, need_proxy);
  }
  
  int need_proxy_delegation(const statement_list_t *stmts)
  {
      return does_any_iface(stmts, need_delegation);
  }
  
  int need_inline_stubs(const type_t *iface)
  {
      const statement_t *stmt;
  
      if (get_stub_mode() == MODE_Os) return 1;
  
      STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
      {
          const var_t *func = stmt->u.var;
          if (is_local( func->attrs )) continue;
          if (!is_interpreted_func( iface, func )) return 1;
      }
      return 0;
  }
  
  static int need_proxy_and_inline_stubs(const type_t *iface)
  {
      const statement_t *stmt;
  
      if (!need_proxy( iface )) return 0;
      if (get_stub_mode() == MODE_Os) return 1;
  
      STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
      {
          const var_t *func = stmt->u.var;
          if (is_local( func->attrs )) continue;
          if (!is_interpreted_func( iface, func )) return 1;
      }
      return 0;
  }
  
  int need_stub_files(const statement_list_t *stmts)
  {
    return does_any_iface(stmts, need_stub);
  }
  
  int need_inline_stubs_file(const statement_list_t *stmts)
  {
    return does_any_iface(stmts, need_inline_stubs);
  }
  
  static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
  {
    const statement_t *stmt;
    if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
    {
      if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
      {
        type_t *iface = stmt->u.type;
        if (need_proxy(iface))
        {
          write_proxy(iface, proc_offset);
          if (type_iface_get_async_iface(iface))
            write_proxy(type_iface_get_async_iface(iface), proc_offset);
        }
      }
    }
  }
  
  static int cmp_iid( const void *ptr1, const void *ptr2 )
  {
      const type_t * const *iface1 = ptr1;
      const type_t * const *iface2 = ptr2;
      const struct uuid *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
      const struct uuid *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
      return memcmp( uuid1, uuid2, sizeof(*uuid1) );
  }
  
  static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
  {
      const statement_t *stmt;
  
      if (!stmts) return;
      LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
      {
          if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
          {
              type_t *iface = stmt->u.type;
              if (type_iface_get_inherit(iface) && need_proxy(iface))
              {
                  *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
                  (*ifaces)[(*count)++] = iface;
                  if (type_iface_get_async_iface(iface))
                  {
                      iface = type_iface_get_async_iface(iface);
                      *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
                      (*ifaces)[(*count)++] = iface;
                  }
              }
          }
      }
  }
  
  static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
  {
      type_t **ifaces = NULL;
  
      *count = 0;
      build_iface_list( stmts, &ifaces, count );
      qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
      return ifaces;
  }
  
  static void write_proxy_routines(const statement_list_t *stmts)
  {
    int expr_eval_routines;
    unsigned int proc_offset = 0;
    char *file_id = proxy_token;
    int i, count, have_baseiid = 0;
    unsigned int table_version;
    type_t **interfaces;
    const type_t * delegate_to;
  
    print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
    print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
    print_proxy( "#endif\n");
    print_proxy( "\n");
    if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
    print_proxy( "#include \"rpcproxy.h\"\n");
    print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
    print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
    print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
    print_proxy( "\n");
    print_proxy( "#include \"%s\"\n", header_name);
    print_proxy( "\n");
  
    if (does_any_iface(stmts, need_proxy_and_inline_stubs))
    {
        write_exceptions( proxy );
        print_proxy( "\n");
        print_proxy( "struct __proxy_frame\n");
        print_proxy( "{\n");
        print_proxy( "    __DECL_EXCEPTION_FRAME\n");
        print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
        print_proxy( "    void             *This;\n");
        print_proxy( "};\n");
        print_proxy( "\n");
        print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
        print_proxy( "{\n");
        print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
        print_proxy( "}\n");
        print_proxy( "\n");
    }
  
    write_formatstringsdecl(proxy, indent, stmts, need_proxy);
    write_stubdescproto();
    write_proxy_stmts(stmts, &proc_offset);
  
    expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
    if (expr_eval_routines)
        write_expr_eval_routine_list(proxy, proxy_token);
    write_user_quad_list(proxy);
    write_stubdesc(expr_eval_routines);
  
    print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
    print_proxy( "#error Invalid build platform for this proxy.\n");
    print_proxy( "#endif\n");
    print_proxy( "\n");
    write_procformatstring(proxy, stmts, need_proxy);
    write_typeformatstring(proxy, stmts, need_proxy);
  
    interfaces = sort_interfaces(stmts, &count);
    fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
    fprintf(proxy, "{\n");
    for (i = 0; i < count; i++)
        fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
    fprintf(proxy, "    0\n");
    fprintf(proxy, "};\n");
    fprintf(proxy, "\n");
  
    fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
    fprintf(proxy, "{\n");
    for (i = 0; i < count; i++)
        fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
    fprintf(proxy, "    0\n");
    fprintf(proxy, "};\n");
    fprintf(proxy, "\n");
  
    fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
    fprintf(proxy, "{\n");
    for (i = 0; i < count; i++)
        fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
    fprintf(proxy, "    0\n");
    fprintf(proxy, "};\n");
    fprintf(proxy, "\n");
  
    for (i = 0; i < count; i++)
        if ((have_baseiid = get_delegation_indirect( interfaces[i], NULL ))) break;
  
    if (have_baseiid)
    {
        fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
        fprintf(proxy, "{\n");
        for (i = 0; i < count; i++)
        {
            if (get_delegation_indirect(interfaces[i], &delegate_to))
                fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
            else
                fprintf( proxy, "    0,\n" );
        }
        fprintf(proxy, "    0\n");
        fprintf(proxy, "};\n");
        fprintf(proxy, "\n");
    }
  
    fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
    fprintf(proxy, "{\n");
    fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
    fprintf(proxy, "\n");
    fprintf(proxy, "    while (low <= high)\n");
    fprintf(proxy, "    {\n");
    fprintf(proxy, "        int pos = (low + high) / 2;\n");
    fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
    fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
    fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
    fprintf(proxy, "        else high = pos - 1;\n");
    fprintf(proxy, "    }\n");
    fprintf(proxy, "    return 0;\n");
    fprintf(proxy, "}\n");
    fprintf(proxy, "\n");
  
    table_version = get_stub_mode() == MODE_Oif ? 2 : 1;
    for (i = 0; i < count; i++)
    {
        if (type_iface_get_async_iface(interfaces[i]) != interfaces[i]) continue;
        if (table_version != 6)
        {
            fprintf(proxy, "static const IID *_AsyncInterfaceTable[] =\n");
            fprintf(proxy, "{\n");
            table_version = 6;
        }
        fprintf(proxy, "    &IID_%s,\n", interfaces[i]->name);
        fprintf(proxy, "    (IID*)(LONG_PTR)-1,\n");
    }
    if (table_version == 6)
    {
        fprintf(proxy, "    0\n");
        fprintf(proxy, "};\n");
        fprintf(proxy, "\n");
    }
  
    fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
    fprintf(proxy, "{\n");
    fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
    fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
    fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
    if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
    else fprintf(proxy, "    0,\n");
    fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
    fprintf(proxy, "    %d,\n", count);
    fprintf(proxy, "    %u,\n", table_version);
    fprintf(proxy, "    %s,\n", table_version == 6 ? "_AsyncInterfaceTable" : "0");
    fprintf(proxy, "    0,\n");
    fprintf(proxy, "    0,\n");
    fprintf(proxy, "    0\n");
    fprintf(proxy, "};\n");
  }
  
  void write_proxies(const statement_list_t *stmts)
  {
    if (!do_proxies) return;
    if (do_everything && !need_proxy_file(stmts)) return;
  
    init_proxy(stmts);
    if(!proxy) return;
  
    write_proxy_routines( stmts );
    fclose(proxy);
  }
  