TAO/TAO_IDL/be/be_visitor_exception/exception.cpp

   1
   2 //=============================================================================
   3 /**
   4  *  @file    exception.cpp
   5  *
   6  *  Generic visitor generating code for Exceptions.
   7  *
   8  *  @author Aniruddha Gokhale
   9  */
  10 //=============================================================================
  11
  12 #include "exception.h"
  13
  14 // Generic exception visitor.
  15 be_visitor_exception::be_visitor_exception (be_visitor_context *ctx)
  16   : be_visitor_scope (ctx)
  17 {
  18 }
  19
  20 be_visitor_exception::~be_visitor_exception ()
  21 {
  22 }
  23
  24 // Visit the Exception node and its scope.
  25 int
  26 be_visitor_exception::visit_exception (be_exception *)
  27 {
  28   // Must be overriden.
  29   return -1;
  30 }
  31
  32 int
  33 be_visitor_exception::visit_field (be_field *node)
  34 {
  35   // Instantiate a visitor context with a copy of our context. This info
  36   // will be modified based on what type of node we are visiting.
  37   be_visitor_context ctx (*this->ctx_);
  38   ctx.node (node);
  39   int status = 0;
  40
  41   // This switch is acceptable rather than having derived visitors overriding
  42   // this method and differing only in what state they set
  43
  44   switch (this->ctx_->state ())
  45     {
  46     case TAO_CodeGen::TAO_ROOT_CH:
  47     case TAO_CodeGen::TAO_INTERFACE_CH:
  48       {
  49         be_visitor_field_ch visitor (&ctx);
  50         status = node->accept (&visitor);
  51         break;
  52       }
  53     case TAO_CodeGen::TAO_ROOT_CI:
  54       {
  55         be_visitor_field_ci visitor (&ctx);
  56         status = node->accept (&visitor);
  57         break;
  58       }
  59     case TAO_CodeGen::TAO_ROOT_CS:
  60       {
  61         be_visitor_field_cs visitor (&ctx);
  62         status = node->accept (&visitor);
  63         break;
  64       }
  65     case TAO_CodeGen::TAO_ROOT_CDR_OP_CH:
  66       {
  67         be_visitor_field_cdr_op_ch visitor (&ctx);
  68         status = node->accept (&visitor);
  69         break;
  70       }
  71     case TAO_CodeGen::TAO_ROOT_CDR_OP_CS:
  72       {
  73         be_visitor_field_cdr_op_cs visitor (&ctx);
  74         status = node->accept (&visitor);
  75         break;
  76       }
  77     default:
  78       {
  79         ACE_ERROR_RETURN ((LM_ERROR,
  80                            "(%N:%l) be_visitor_exception::"
  81                            "visit_field - "
  82                            "Bad context state\n"),
  83                           -1);
  84       }
  85     }
  86
  87   if (status == -1)
  88     {
  89       ACE_ERROR_RETURN ((LM_ERROR,
  90                          "(%N:%l) be_visitor_exception::"
  91                          "visit_field - "
  92                          "failed to accept visitor\n"),
  93                         -1);
  94     }
  95
  96   return 0;
  97 }