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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// union.cpp
//
// = DESCRIPTION
// Generic visitor generating code for Unions
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
ACE_RCSID (be_visitor_union,
union,
"$Id$")
be_visitor_union::be_visitor_union (be_visitor_context *ctx)
: be_visitor_scope (ctx)
{
}
be_visitor_union::~be_visitor_union (void)
{
}
int
be_visitor_union::visit_union (be_union *)
{
return -1; // Must be overriden.
}
int
be_visitor_union::visit_union_branch (be_union_branch *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);
int status = 0;
switch (this->ctx_->state ())
{
case TAO_CodeGen::TAO_UNION_PUBLIC_CH:
{
be_visitor_union_branch_public_ch visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_UNION_PRIVATE_CH:
{
be_visitor_union_branch_private_ch visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_ROOT_CI:
{
be_visitor_union_branch_public_ci visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_UNION_PUBLIC_CS:
{
be_visitor_union_branch_public_cs visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_UNION_PUBLIC_ASSIGN_CS:
{
be_visitor_union_branch_public_assign_cs visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_UNION_PUBLIC_RESET_CS:
{
be_visitor_union_branch_public_reset_cs visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_ROOT_CDR_OP_CH:
{
be_visitor_union_branch_cdr_op_ch visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_ROOT_CDR_OP_CS:
{
be_visitor_union_branch_cdr_op_cs visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_ROOT_SERIALIZER_OP_CH:
{
be_visitor_union_branch_serializer_op_ch visitor (&ctx);
status = node->accept (&visitor);
break;
}
case TAO_CodeGen::TAO_ROOT_SERIALIZER_OP_CS:
{
be_visitor_union_branch_serializer_op_cs visitor (&ctx);
status = node->accept (&visitor);
break;
}
default:
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union::"
"visit_union_branch - "
"Bad context state\n"),
-1);
}
}
if (status == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_union::"
"visit_union_branch - "
"failed to accept visitor\n"),
-1);
}
return 0;
}
int
be_visitor_union_cdr_op_cs::pre_process (be_decl *bd)
{
if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_SCOPE)
{
return 0;
}
// Enum val nodes are added just to help check reference
// clashes, since an enum declared in our scope is not itself
// a scope.
if (bd->node_type () == AST_Decl::NT_enum_val)
{
return 0;
}
TAO_OutStream *os = this->ctx_->stream ();
be_union_branch* b =
be_union_branch::narrow_from_decl (bd);
*os << be_nl;
for (unsigned long i = 0; i < b->label_list_length (); ++i)
{
// check if we are printing the default case
if (b->label (i)->label_kind () == AST_UnionLabel::UL_default)
{
*os << "default:";
}
else
{
*os << "case ";
b->gen_label_value (os, i);
*os << ":";
}
if (i == (b->label_list_length () - 1))
{
*os << be_idt_nl;
}
else
{
*os << be_nl;
}
}
*os << "{" << be_idt_nl;
return 0;
}
int
be_visitor_union_cdr_op_cs::post_process (be_decl *bd)
{
if (this->ctx_->sub_state () == TAO_CodeGen::TAO_CDR_SCOPE)
{
return 0;
}
if (bd->node_type () == AST_Decl::NT_enum_val)
{
return 0;
}
TAO_OutStream *os = this->ctx_->stream ();
*os << be_uidt_nl << "}" << be_nl
<< "break;" << be_uidt;
return 0;
}
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