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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// structure.cpp
//
// = DESCRIPTION
// Visitor generating code for Structures. This is a generic visitor.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_structure.h"
ACE_RCSID(be_visitor_structure, structure, "$Id$")
// generic struct visitor
be_visitor_structure::be_visitor_structure (be_visitor_context *ctx)
: be_visitor_scope (ctx)
{
}
be_visitor_structure::~be_visitor_structure (void)
{
}
// visit the Structure node and its scope
int
be_visitor_structure::visit_structure (be_structure *node)
{
return -1; // must be overriden
}
int
be_visitor_structure::visit_field (be_field *node)
{
// instantiate a visitor context with a copy of our context. This info
// will be modified based on what type of node we are visiting
be_visitor_context ctx (*this->ctx_);
ctx.node (node); // set the node to be the node being visited. The scope is
// still the same
// this switch is acceptable rather than having derived visitors overriding
// this method and differing only in what state they set
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_STRUCT_CH:
ctx.state (TAO_CodeGen::TAO_FIELD_CH);
break;
case TAO_CodeGen::TAO_STRUCT_CI:
ctx.state (TAO_CodeGen::TAO_FIELD_CI);
break;
case TAO_CodeGen::TAO_STRUCT_CS:
ctx.state (TAO_CodeGen::TAO_FIELD_CS);
break;
case TAO_CodeGen::TAO_STRUCT_CDR_OP_CH:
ctx.state (TAO_CodeGen::TAO_FIELD_CDR_OP_CH);
break;
case TAO_CodeGen::TAO_STRUCT_CDR_OP_CS:
ctx.state (TAO_CodeGen::TAO_FIELD_CDR_OP_CS);
break;
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure::"
"visit_field - "
"Bad context state\n"
), -1);
}
}
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure::"
"visit_field - "
"NUL visitor\n"
), -1);
}
// let the node accept this visitor
if (node->accept (visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_structure::"
"visit_field - "
"failed to accept visitor\n"
), -1);
}
delete visitor;
return 0;
}
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