marshal_ss.cpp

来自「这是广泛使用的通信开源项目,对于大容量,高并发的通讯要求完全能够胜任,他广泛可用」· C++ 代码 · 共 829 行 · 第 1/2 页

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829 行
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12
//
// marshal_ss.cpp,v 1.16 2003/12/31 21:28:04 bala Exp
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    marshal_ss.cpp
//
// = DESCRIPTION
//    Visitor that generates code that passes the argument variable to the
//    marshal operations.
//
// = AUTHOR
//    Aniruddha Gokhale
//
// ============================================================================

ACE_RCSID (be_visitor_argument,
           marshal_ss,
           "marshal_ss.cpp,v 1.16 2003/12/31 21:28:04 bala Exp")


// ************************************************************************
// Visitor to generate code for passing argument to the marshal/demarshal
// routines
// ************************************************************************

be_visitor_args_marshal_ss::
be_visitor_args_marshal_ss (be_visitor_context *ctx)
  : be_visitor_args (ctx)
{
}

be_visitor_args_marshal_ss::
~be_visitor_args_marshal_ss (void)
{
}

int be_visitor_args_marshal_ss::visit_argument (be_argument *node)
{
  this->ctx_->node (node);
  be_type *bt = be_type::narrow_from_decl (node->field_type ());

  if (!bt)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_argument - "
                         "Bad argument type\n"),
                        -1);
    }

  // Different types have different mappings when used as in/out or
  // inout parameters. Let this visitor deal with the type

  TAO_OutStream *os = this->ctx_->stream ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << be_nl << "(_tao_in >> ";
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << be_nl << "(_tao_out << ";
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_argument - "
                         "Bad substate\n"),
                        -1);
    }

  if (bt->accept (this) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_argument - "
                         "cannot accept visitor\n"),
                        -1);
    }

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << ")";
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << ")";
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_argument - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_array (be_array *)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          *os << "_tao_forany_" << arg->local_name ();
          break;
        case AST_Argument::dir_INOUT:
          *os << "_tao_forany_" << arg->local_name ();
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
          *os << "_tao_forany_" << arg->local_name ();
          break;
        case AST_Argument::dir_OUT:
          *os << "_tao_forany_" << arg->local_name ();
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_array - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_enum (be_enum *)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << arg->local_name ();
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << arg->local_name ();
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_enum - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_interface (be_interface *)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << arg->local_name () << ".out ()";
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << arg->local_name () << ".in ()";
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_interface - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_interface_fwd (be_interface_fwd *)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << arg->local_name () << ".out ()";
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << arg->local_name () << ".in ()";
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_interface_fwd - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_valuetype (be_valuetype *)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << arg->local_name () << ".out ()";
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << arg->local_name () << ".in ()";
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_valuetype - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_valuetype_fwd (be_valuetype_fwd *)
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          *os << arg->local_name () << ".out ()";
          break;
        case AST_Argument::dir_OUT:
          break;
        }
    }
  else if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_OUTPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
          break;
        case AST_Argument::dir_INOUT:
        case AST_Argument::dir_OUT:
          *os << arg->local_name () << ".in ()";
          break;
        }
    }
  else
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "be_visitor_args_compiled_marshal_ss::"
                         "visit_valuetype_fwd - "
                         "Bad substate\n"),
                        -1);
    }

  return 0;
}

int be_visitor_args_marshal_ss::visit_predefined_type (
    be_predefined_type *node
  )
{
  TAO_OutStream *os = this->ctx_->stream ();
  be_argument *arg = this->ctx_->be_node_as_argument ();

  if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_INPUT)
    {
      switch (this->direction ())
        {
        case AST_Argument::dir_IN:
        case AST_Argument::dir_INOUT:
          switch (node->pt ())
            {
            case AST_PredefinedType::PT_pseudo:
            case AST_PredefinedType::PT_object:
              *os << arg->local_name () << ".out ()";
              break;
            case AST_PredefinedType::PT_any:
            case AST_PredefinedType::PT_long:
            case AST_PredefinedType::PT_ulong:
            case AST_PredefinedType::PT_longlong:
            case AST_PredefinedType::PT_ulonglong:
            case AST_PredefinedType::PT_short:
            case AST_PredefinedType::PT_ushort:
12

marshal_ss.cpp - 源码说明

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