text: //
  // operation_ss.cpp,v 1.58 2001/09/24 08:30:39 othman Exp
  //
  
  // ============================================================================
  //
  // = LIBRARY
  //    TAO IDL
  //
  // = FILENAME
  //    operation_ss.cpp
  //
  // = DESCRIPTION
  //    Visitor generating code for Operation in the server skeleton
  //
  // = AUTHOR
  //    Aniruddha Gokhale
  //
  // ============================================================================
  
  #include        "idl.h"
  #include        "idl_extern.h"
  #include        "be.h"
  
  #include "be_visitor_operation.h"
  #include "be_visitor_argument.h"
  
  ACE_RCSID (be_visitor_operation,
             operation_ss,
             "operation_ss.cpp,v 1.58 2001/09/24 08:30:39 othman Exp")
  
  
  // ************************************************************
  // Operation visitor for server skeletons
  // ************************************************************
  
  be_visitor_operation_ss::be_visitor_operation_ss (be_visitor_context *ctx)
    : be_visitor_operation (ctx),
      operation_name_ (0)
  {
  }
  
  be_visitor_operation_ss::~be_visitor_operation_ss (void)
  {
    delete[] this->operation_name_;
  }
  
  // Processing to be done after every element in the scope is processed.
  int
  be_visitor_operation_ss::post_process (be_decl *bd)
  {
    // All we do here is to insert a comma and a newline.
    TAO_OutStream *os = this->ctx_->stream ();
  
    if (!this->last_node (bd))
      {
        *os << ",\n";
      }
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::visit_operation (be_operation *node)
  {
    TAO_OutStream *os = this->ctx_->stream ();
    be_type *bt = 0;
  
    this->ctx_->node (node);
  
    os->indent ();
  
    // If there is an argument of type "native", return immediately.
    if (node->has_native ())
      {
        return 0;
      }
  
    // Retrieve the operation return type.
    bt = be_type::narrow_from_decl (node->return_type ());
  
    if (!bt)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "Bad return type\n"),
                          -1);
      }
  
    // We need the interface node in which this operation was defined. However,
    // if this operation node was an attribute node in disguise, we get this
    // information from the context
    be_interface *intf;
    intf = this->ctx_->attribute ()
      ? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
      : be_interface::narrow_from_scope (node->defined_in ());
  
    if (!intf)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "bad interface scope\n"),
                          -1);
      }
  
    // Generate the signature of the static skeleton.
    os->indent ();
    *os << "void " << intf->full_skel_name () << "::";
  
    // Check if we are an attribute node in disguise.
    if (this->ctx_->attribute ())
      {
        // Now check if we are a "get" or "set" operation.
        if (node->nmembers () == 1)
          {
            *os << "_set_";
          }
        else
          {
            *os << "_get_";
          }
      }
    *os << node->local_name ()
        << "_skel (" << be_idt << be_idt_nl
        << "TAO_ServerRequest &_tao_server_request," << be_nl
        << "void *_tao_object_reference," << be_nl
        << "void *_tao_servant_upcall," << be_nl
        << "CORBA::Environment &ACE_TRY_ENV" << be_uidt_nl
        << ")" << be_uidt_nl;
  
    // Generate the actual code for the skeleton. However, if any of the argument
    // types is "native", we do not generate any skeleton
    // last argument - is always CORBA::Environment.
    *os << "{\n" << be_idt;
  
    // Generate all the tables and other pre-skel info.
    if (this->gen_pre_skel_info (node) == -1)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "gen_pre_skel_info failed\n"),
                          -1);
      }
  
    os->indent ();
  
    // Get the right object implementation.
    *os << intf->full_skel_name () << " *_tao_impl =" << be_idt_nl
        << "ACE_static_cast (" << be_idt << be_idt_nl
        << intf->full_skel_name () << " *," << be_nl
        << "_tao_object_reference" << be_uidt_nl
        << ");" << be_uidt << be_uidt_nl;
  
    // Declare a return type variable.
    be_visitor_context ctx = *this->ctx_;
    ctx.state (TAO_CodeGen::TAO_OPERATION_RETVAL_DECL_SS);
    be_visitor *visitor = tao_cg->make_visitor (&ctx);
  
    // Do we have any arguments in the operation that needs marshalling.
    UTL_ScopeActiveIterator si (node,
                                UTL_Scope::IK_decls);
    AST_Decl *d = 0;
    AST_Argument *arg = 0;
    int flag = 0;
  
    while (!si.is_done ())
    {
      d = si.item ();
      arg = AST_Argument::narrow_from_decl (d);
  
      if (arg->direction () == AST_Argument::dir_INOUT ||
          arg->direction () == AST_Argument::dir_OUT)
        {
          // There are return type that needs to get marshalled.
          flag = 1;
          break;
        }
  
      si.next ();
    }
  
    // Check if the flag is zero and for the return type.
    if (flag == 0 && node->void_return_type () == 1)
      {
        // There are no return type and argument values that needs to be
        // marshalled.
        *os << "_tao_server_request.argument_flag (0);" << be_nl;
      }
  
    if (!visitor || (bt->accept (visitor) == -1))
      {
        delete visitor;
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "codegen for return var decl failed\n"),
                          -1);
      }
  
    // Declare variables for arguments.
    ctx = *this->ctx_;
    ctx.state (TAO_CodeGen::TAO_OPERATION_ARG_DECL_SS);
    visitor = tao_cg->make_visitor (&ctx);
  
    if (!visitor || (node->accept (visitor) == -1))
      {
        delete visitor;
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "codegen for return var decl failed\n"),
                          -1);
      }
  
    // Demarshal parameters.
    if (this->gen_demarshal_params (node, bt) == -1)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "gen_demarshal_params failed\n"),
                          -1);
      }
  
    // Fish out the interceptors.
    *os << "\n#if (TAO_HAS_INTERCEPTORS == 1)" << be_nl;
  
    // Cast the Servant_Upcall pointer.
    *os << "TAO_Object_Adapter::Servant_Upcall *_tao_upcall =" << be_idt_nl
        << "ACE_static_cast (TAO_Object_Adapter::Servant_Upcall *, "
        << "_tao_servant_upcall);"
        << be_uidt_nl << be_nl;
  
    *os << "TAO_ServerRequestInterceptor_Adapter _tao_vfr ("
        << be_idt << be_idt_nl
        << "_tao_server_request.orb_core ()->server_request_interceptors (),"
        << be_nl
        << "_tao_server_request.interceptor_count ()" << be_uidt_nl
        << ");" << be_uidt_nl << be_nl;
  
    *os << "TAO_ServerRequestInfo_" << node->flat_name ();
  
    // We need the interface node in which this operation was defined. However,
    // if this operation node was an attribute node in disguise, we get this
    // information from the context and add a "_get"/"_set" to the flat
    // name to get around the problem of overloaded methods which are
    // generated for attributes.
    if (this->ctx_->attribute ())
      {
        bt = be_type::narrow_from_decl (node->return_type ());
        if (!bt)
          {
            ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_interceptors_ch::"
                               "visit_operation - "
                               "Bad return type\n"),
                              -1);
          }
  
        // Grab the right visitor to generate the return type if its not
        // void it means it is not the accessor.
        if (!this->void_return_type (bt))
          {
            *os << "_get";
          }
        else
          {
            *os << "_set";
          }
      }
  
    *os << " _tao_ri (" << be_idt << be_idt_nl
        << "_tao_server_request," << be_nl
        << "_tao_upcall," << be_nl
        << "_tao_impl";
  
    // Generate the formal argument fields which are passed to the
    // RequestInfo object.
    ctx = *this->ctx_;
    ctx.state (TAO_CodeGen::TAO_OPERATION_INTERCEPTORS_INFO_ARGLIST_SS);
    visitor = tao_cg->make_visitor (&ctx);
  
    if ((!visitor) || (node->accept (visitor) == -1))
      {
        delete visitor;
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_cs::"
                           "visit_operation - "
                           "codegen for arglist failed\n"),
                          -1);
      }
  
    delete visitor;
    *os << be_uidt_nl << ");" << be_uidt_nl << be_nl;
  
    *os << "ACE_TRY" << be_idt_nl
        << "{" << be_idt_nl;
  
    // Create a new scope.  The receive_request() interception point and
    // the upcall will occur within this scope.
    *os << "{" << be_idt_nl;
  
    // Copy the thread scope current (TSC) to the request scope current
    // (RSC) upon leaving this scope, i.e. just after the upcall
    // completes.  A "guard" is used to make the copy also occur if an
    // exception is thrown.
    *os << "TAO_PICurrent_Guard _tao_pi_guard (_tao_ri.server_request (),"
        << be_nl
        << "                                   1  /* Copy TSC to RSC */);"
        << be_nl << be_nl;
  
    // Invoke the receive_request() interception point.
    *os << "_tao_vfr.receive_request (&_tao_ri, ACE_TRY_ENV);" << be_nl
        << "ACE_TRY_CHECK;" << be_nl;
  
    *os << "\n#endif /* TAO_HAS_INTERCEPTORS */\n";
  
    // Make the upcall and assign to the return val.
    ctx = *this->ctx_;
    ctx.state (TAO_CodeGen::TAO_OPERATION_RETVAL_ASSIGN_SS);
    visitor = tao_cg->make_visitor (&ctx);
  
    if (!visitor || (bt->accept (visitor) == -1))
      {
        delete visitor;
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "codegen for retval assignment failed\n"),
                          -1);
      }
  
    // Make the upcall.
    *os << be_nl
        << "_tao_impl->" << node->local_name () << " (" << be_idt << be_idt_nl;
    ctx = *this->ctx_;
    ctx.state (TAO_CodeGen::TAO_OPERATION_ARG_UPCALL_SS);
    visitor = tao_cg->make_visitor (&ctx);
  
    if (!visitor || (node->accept (visitor) == -1))
      {
        delete visitor;
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "codegen for making upcall failed\n"),
                          -1);
      }
  
    // End the upcall.
    *os << be_uidt_nl << ");" << be_uidt_nl;
  
    if (!be_global->exception_support ())
      {
        *os << "TAO_INTERCEPTOR_CHECK;" << be_nl;
      }
  
    // Update the result.
    bt = be_type::narrow_from_decl (node->return_type ());
  
    if (!bt)
      {
            ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_interceptors_ch::"
                               "visit_operation - "
                               "Bad return type\n"),
                              -1);
      }
  
    // Invoke the send_reply() or send_other() interception point, and
    // check for exception.
    *os << "\n#if (TAO_HAS_INTERCEPTORS == 1)" << be_nl;
  
    *os << be_uidt
        << "}" << be_nl << be_nl;
  
    // Grab the right visitor to generate the return type accessor if
    // it's not void since we can't have a private member to be of void
    // type.
    if (!this->void_return_type (bt))
      {
        // Here's what we are going to do to have a uniform way of
        // getting the return value updated for the Request Info:
        // declare a operation_retval type object and assign the
        // _tao_safe_retval._retn() to it.  We pass this to the result
        // updation method (note: it hasn't been destroyed).  We then
        // put it back into the original _tao_safe_retval object.  And
        // finally the _retn() is returned from the operation without
        // causing any problems.
        // Generate the return type mapping (same as in the header file)
        ctx = *this->ctx_;
        ctx.state (TAO_CodeGen::TAO_OPERATION_RETTYPE_OTHERS);
        visitor = tao_cg->make_visitor (&ctx);
  
  //      os->indent ();
  
        if ((!visitor) || (bt->accept (visitor) == -1))
          {
            delete visitor;
            ACE_ERROR_RETURN ((LM_ERROR,
                               "(%N:%l) be_visitor_operation_cs::"
                               "visit_operation - "
                               "codegen for return type failed\n"),
                              -1);
          }
  
        delete visitor;
  
        if (bt->size_type () == be_decl::VARIABLE
            || bt->base_node_type () == AST_Decl::NT_array)
          {
            *os << " _tao_retval_info = _tao_retval._retn ();" << be_nl
                << "_tao_ri.result (_tao_retval_info);" << be_nl
                << "_tao_retval = _tao_retval_info;" << be_nl;
          }
        else
          {
            *os << " _tao_retval_info = _tao_retval;" << be_nl
                << "_tao_ri.result (_tao_retval_info);" << be_nl;
          }
      }
  
    *os << "_tao_ri.reply_status (PortableInterceptor::SUCCESSFUL);" << be_nl
        << "_tao_vfr.send_reply (&_tao_ri, ACE_TRY_ENV);"<< be_nl
            << "ACE_TRY_CHECK;" << be_uidt_nl;
  
    *os << "}" << be_uidt_nl
        << "ACE_CATCHANY" << be_idt_nl
        << "{" << be_idt_nl;
    // Update the ServerRequestInfo exception attribute.
    *os << "_tao_ri.exception (&ACE_ANY_EXCEPTION);"<< be_nl
        << "_tao_vfr.send_exception (" << be_idt << be_idt_nl
        << "&_tao_ri," << be_nl
        << "ACE_TRY_ENV" << be_uidt_nl
        << ");" << be_uidt_nl
        << "ACE_TRY_CHECK;" << be_nl;
  
    // The send_exception() interception point may have transformed the
    // caught exception.  In that event, we must not re-throw the caught
    // exception.
    *os << be_nl
        << "PortableInterceptor::ReplyStatus _tao_status =" << be_idt_nl
        << "_tao_ri.reply_status (ACE_TRY_ENV);" << be_uidt_nl
        << "ACE_TRY_CHECK;" << be_nl;
  
    *os << be_nl
        << "if (_tao_status == PortableInterceptor::SYSTEM_EXCEPTION" << be_nl
        << "    || _tao_status == PortableInterceptor::USER_EXCEPTION)"
        << be_idt_nl;
  
    if (be_global->use_raw_throw ())
      *os << "throw;" << be_uidt << be_uidt_nl;
    else
      *os << "ACE_RE_THROW;" << be_uidt << be_uidt_nl;
  
    *os << "}" << be_uidt_nl
        << "ACE_ENDTRY;" << be_nl;
    *os << "ACE_CHECK;\n"
        << "#endif /* TAO_HAS_INTERCEPTORS */" << be_nl << be_nl;
  
    // Check if we are oneway in which case, we are done.
    if (node->flags () == AST_Operation::OP_oneway)
      {
        // We are done. Nothing else to do, except closing the function body.
        *os << "if (_tao_server_request.response_expected ()" << be_idt
            << be_idt_nl
            << "&& !_tao_server_request.sync_with_server ())" << be_uidt_nl
            << "{" << be_idt_nl
            << "_tao_server_request.init_reply ();" << be_uidt_nl
            << "}" << be_uidt_nl << be_nl;
      }
  
    // Marshal outgoing parameters.
    else if (this->gen_marshal_params (node, bt) == -1)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_operation - "
                           "gen_marshal_params failed\n"),
                          -1);
      }
  
    *os << "// In case _tao_servant_upcall is not used in this function"
        << be_nl 
        << "ACE_UNUSED_ARG (_tao_servant_upcall);" << be_nl << be_nl;
  
    *os << "// In case ACE_TRY_ENV is not used in this function" << be_nl
        << "ACE_UNUSED_ARG (ACE_TRY_ENV);" << be_uidt_nl
        << "}\n\n";
    return 0;
  }
  
  int
  be_visitor_operation_ss::visit_argument (be_argument *node)
  {
    // This method is used to generate the ParamData table entry.
  
    TAO_OutStream *os = this->ctx_->stream ();
    be_type *bt; // argument type
  
    // Retrieve the type for this argument.
    bt = be_type::narrow_from_decl (node->field_type ());
  
    if (!bt)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_visitor_operation_ss::"
                           "visit_argument - "
                           "Bad argument type\n"),
                          -1);
      }
  
    os->indent ();
    *os << "{" << bt->tc_name () << ", ";
    switch (node->direction ())
      {
      case AST_Argument::dir_IN:
        *os << "CORBA::ARG_IN, ";
        break;
      case AST_Argument::dir_INOUT:
        *os << "CORBA::ARG_INOUT, ";
        break;
      case AST_Argument::dir_OUT:
        *os << "CORBA::ARG_OUT, ";
        break;
      }
    *os << "0}";
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::gen_pre_skel_info (be_operation *node)
  {
    TAO_OutStream *os = this->ctx_->stream ();
  
    // Now make sure that we have some in and inout parameters. Otherwise, there
    // is nothing to be marshaled in.
    if (this->has_param_type (node, AST_Argument::dir_IN) ||
        this->has_param_type (node, AST_Argument::dir_INOUT))
      {
        // Instantiate a TAO_InputCDR variable.
        os->indent ();
        *os << "TAO_InputCDR &_tao_in = _tao_server_request.incoming ();\n";
      }
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::gen_demarshal_params (be_operation *node,
                                                 be_type *bt)
  {
    TAO_OutStream *os = this->ctx_->stream ();
    be_visitor *visitor;
    be_visitor_context ctx;
  
    // Now make sure that we have some in and inout parameters. Otherwise, there
    // is nothing to be marshaled in.
    if (this->has_param_type (node, AST_Argument::dir_IN) ||
        this->has_param_type (node, AST_Argument::dir_INOUT))
      {
        os->indent ();
  
        // demarshal the in and inout arguments
        *os << "if (!(\n" << be_idt;
  
        // Marshal each in and inout argument.
        ctx = *this->ctx_;
        ctx.state (TAO_CodeGen::TAO_OPERATION_ARG_DEMARSHAL_SS);
        ctx.sub_state (TAO_CodeGen::TAO_CDR_INPUT);
        visitor = tao_cg->make_visitor (&ctx);
  
        if (!visitor || (node->accept (visitor) == -1))
          {
            delete visitor;
            ACE_ERROR_RETURN ((LM_ERROR,
                               "(%N:%l) be_compiled_visitor_operation_ss::"
                               "gen_demarshal_params - "
                               "codegen for demarshal failed\n"),
                              -1);
          }
  
        *os << be_uidt_nl << "))\n" << be_idt;
  
        // If marshaling fails, raise exception.
        if (this->gen_raise_exception (bt, "CORBA::MARSHAL",
                                       "",
                                       "ACE_TRY_ENV") == -1)
          {
            ACE_ERROR_RETURN ((LM_ERROR,
                               "(%N:%l) be_compiled_visitor_operation_ss::"
                               "gen_marshal_and invoke - "
                               "codegen for return var failed\n"),
                              -1);
          }
  
        *os << be_uidt << "\n";
  
      };
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::gen_marshal_params (be_operation *node,
                                               be_type *bt)
  {
    TAO_OutStream *os = this->ctx_->stream ();
    be_visitor *visitor;
    be_visitor_context ctx;
  
    // Setup parameters for marshaling and marshal them into the
    // outgoing stream.
    // The code below this is for 2way operations only.
  
    // We will be here only if we are 2way
    // first initialize a reply message
    *os << "_tao_server_request.init_reply ();" << be_nl << be_nl;
  
    // We still need the following check because we maybe 2way and yet have no
    // parameters and a void return type.
    if (this->void_return_type (bt) &&
        !this->has_param_type (node, AST_Argument::dir_INOUT) &&
        !this->has_param_type (node, AST_Argument::dir_OUT))
      {
        return 0;
      }
  
    // Create temporary variables for the out and return parameters.
    if (!this->void_return_type (bt))
      {
        ctx = *this->ctx_;
  
        be_visitor_context *new_ctx = 0;
        ACE_NEW_RETURN (new_ctx,
                        be_visitor_context (ctx),
                        0);
  
        be_visitor_operation_rettype_post_upcall_ss visitor (new_ctx);
  
        if (bt->accept (&visitor) == -1)
          {
            ACE_ERROR_RETURN ((LM_ERROR,
                               "(%N:%l) be_compiled_visitor_operation_ss::"
                               "gen_marshal_params - "
                               "codegen for return var [post upcall] failed\n"),
                              -1);
          }
      }
  
    // Generate any temporary variables to demarshal the arguments.
    ctx = *this->ctx_;
    be_visitor_args_post_upcall_ss vis1 (new be_visitor_context (ctx));
  
    if (node->accept (&vis1) == -1)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_compiled_visitor_operation_cs::"
                           "gen_pre_stub_info - "
                           "codegen for pre args failed\n"),
                          -1);
      }
  
    *os << "TAO_OutputCDR &_tao_out = _tao_server_request.outgoing ();"
        << be_nl << be_nl;
    *os << "if (!(\n" << be_idt << be_idt;
  
    if (!this->void_return_type (bt))
      {
        // Demarshal the return val and each inout and out argument.
        ctx = *this->ctx_;
        ctx.state (TAO_CodeGen::TAO_OPERATION_RETVAL_MARSHAL_SS);
        ctx.sub_state (TAO_CodeGen::TAO_CDR_OUTPUT);
        visitor = tao_cg->make_visitor (&ctx);
  
        if (!visitor || (node->accept (visitor) == -1))
          {
            delete visitor;
            ACE_ERROR_RETURN ((LM_ERROR,
                               "(%N:%l) be_compiled_visitor_operation_ss::"
                               "gen_marshal_params - "
                               "codegen for return var failed\n"),
                              -1);
          }
      }
  
    if (this->has_param_type (node, AST_Argument::dir_INOUT) ||
        this->has_param_type (node, AST_Argument::dir_OUT))
      {
  
        if (!this->void_return_type (bt))
          {
            // We have already printed the return val. SO put a &&.
            *os << " &&\n";
          }
  
        // Marshal each in and inout argument.
        ctx = *this->ctx_;
        ctx.state (TAO_CodeGen::TAO_OPERATION_ARG_MARSHAL_SS);
        ctx.sub_state (TAO_CodeGen::TAO_CDR_OUTPUT);
        visitor = tao_cg->make_visitor (&ctx);
  
        if (!visitor || (node->accept (visitor) == -1))
          {
            delete visitor;
            ACE_ERROR_RETURN ((LM_ERROR,
                               "(%N:%l) be_compiled_visitor_operation_ss::"
                               "gen_marshal_params - "
                               "codegen for args failed\n"),
                              -1);
          }
      }
  
    *os << be_uidt_nl << "))\n";
    // if marshaling fails, raise exception
    if (this->gen_raise_exception (bt, "CORBA::MARSHAL",
                                   "",
                                   "ACE_TRY_ENV") == -1)
      {
        ACE_ERROR_RETURN ((LM_ERROR,
                           "(%N:%l) be_compiled_visitor_operation_ss::"
                           "gen_marshal_params - "
                           "codegen for raising exception failed\n"),
                          -1);
      }
  
    *os << be_uidt_nl;
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::gen_raise_exception (be_type *,
                                                const char *excep,
                                                const char *completion_status,
                                                const char * /* env */)
  {
    TAO_OutStream *os = this->ctx_->stream ();
  
    os->indent ();
  
    if (be_global->use_raw_throw ())
      {
        *os << "throw ";
      }
    else
      {
        *os << "ACE_THROW (";
      }
  
    *os << excep << "(" << completion_status << ")";
  
    if (be_global->use_raw_throw ())
      {
        *os << ";\n";
      }
    else
      {
        *os << ");\n";
      }
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::gen_check_exception (be_type *,
                                                const char * /* env */)
  {
    TAO_OutStream *os = this->ctx_->stream ();
  
    os->indent ();
  
    // Check if there is an exception.
    *os << "ACE_CHECK;\n";
  
    return 0;
  }
  
  int
  be_visitor_operation_ss::gen_check_interceptor_exception (be_type *, const char * /* env */)
  {
    TAO_OutStream *os = this->ctx_->stream ();
  
    os->indent ();
  
    // Check if there is an exception.
    *os << "TAO_INTERCEPTOR_CHECK;\n";
  
    return 0;
  }
  
  const char *
  be_visitor_operation_ss::compute_operation_name (be_operation *node)
  {
    if (this->operation_name_ == 0)
      {
        size_t len = 3;           // The null termination char.
  
        if (this->ctx_->attribute ())
          {
            len += 5;               // "Added length for "_set_" or "_get_".
          }
  
        len += ACE_OS::strlen (node->local_name ()->get_string ());
  
        ACE_NEW_RETURN (this->operation_name_,
                        char [len],
                        0);
  
        ACE_OS::strcpy (this->operation_name_, "\"");
  
        if (this->ctx_->attribute ())
          {
            if (node->nmembers () == 1)
              {
                ACE_OS::strcat (this->operation_name_, "_set_");
              }
            else
              {
                ACE_OS::strcat (this->operation_name_, "_get_");
              }
          }
  
        ACE_OS::strcat (this->operation_name_,
                        node->local_name ()->get_string ());
        ACE_OS::strcat (this->operation_name_, "\"");
      }
  
    return this->operation_name_;
  }
  