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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// sequence_ch.cpp
//
// = DESCRIPTION
// Visitor generating code for Sequence in the client header
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
ACE_RCSID (be_visitor_sequence,
sequence_ch,
"$Id$")
// Root visitor for client header.
be_visitor_sequence_ch::be_visitor_sequence_ch (be_visitor_context *ctx)
: be_visitor_decl (ctx)
{
}
be_visitor_sequence_ch::~be_visitor_sequence_ch (void)
{
}
int be_visitor_sequence_ch::visit_sequence (be_sequence *node)
{
if (node->defined_in () == 0)
{
// The node is a nested sequence, and has had no scope defined.
node->set_defined_in (DeclAsScope (this->ctx_->scope ()));
}
// First create a name for ourselves.
if (node->create_name (this->ctx_->tdef ()) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_sequence_ch::"
"visit_sequence - "
"failed creating name\n"),
-1);
}
if (node->cli_hdr_gen () || node->imported ())
{
return 0;
}
be_type *bt = 0;
TAO_OutStream *os = this->ctx_->stream ();
// Retrieve the base type since we may need to do some code
// generation for the base type.
bt = be_type::narrow_from_decl (node->base_type ());
if (bt == 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_sequence_ch::"
"visit_sequence - "
"Bad element type\n"),
-1);
}
bt->seen_in_sequence (true);
AST_Decl::NodeType nt = bt->node_type ();
// If our base type is an anonymouse sequence, we must create a name
// and generate a class declaration for it as well.
if (nt == AST_Decl::NT_sequence)
{
// Temporarily make the context's tdef node 0 so the nested call
// to create_name will not get confused and give our anonymous
// sequence element type the same name as we have.
be_typedef *tmp = this->ctx_->tdef ();
this->ctx_->tdef (0);
if (bt->accept (this) != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_sequence_ch::"
"visit_sequence - "
"codegen for anonymous base type failed\n"),
-1);
}
// Restore the tdef value.
this->ctx_->tdef (tmp);
}
*os << be_nl << be_nl << "// TAO_IDL - Generated from" << be_nl
<< "// " << __FILE__ << ":" << __LINE__;
os->gen_ifdef_macro (node->flat_name ());
if (this->ctx_->tdef () != 0)
{
*os << be_nl << be_nl
<< "class " << node->local_name () << ";";
}
if (this->ctx_->tdef () != 0)
{
this->gen_varout_typedefs (node,
bt);
}
*os << be_nl << be_nl
<< "class " << be_global->stub_export_macro () << " "
<< node->local_name () << be_idt_nl
<< ": public" << be_idt << be_idt_nl;
if (node->gen_base_class_name (os, "", this->ctx_->scope ()) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_sequence_ch::"
"visit_sequence - "
"Base class name generation failed\n"),
-1);
}
*os << be_uidt << be_uidt << be_uidt;
*os << be_nl
<< "{" << be_nl
<< "public:" << be_idt;
*os << be_nl
<< node->local_name () << " (void);";
if (node->unbounded ())
{
*os << be_nl
<< node->local_name () << " ( ::CORBA::ULong max);";
}
*os << be_nl
<< node->local_name () << " (" << be_idt << be_idt;
if (node->unbounded ())
{
*os << be_nl
<< "::CORBA::ULong max,";
}
*os << be_nl
<< "::CORBA::ULong length," << be_nl;
// Generate the base type for the buffer.
be_visitor_context ctx (*this->ctx_);
ctx.state (TAO_CodeGen::TAO_SEQUENCE_BUFFER_TYPE_CH);
be_visitor_sequence_buffer_type bt_visitor (&ctx);
if (bt->accept (&bt_visitor) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_sequence_ch::"
"visit_sequence - "
"base type visit failed\n"),
-1);
}
*os << "* buffer, " << be_nl
<< "::CORBA::Boolean release = false" << be_uidt_nl
<< ");" << be_uidt_nl;
*os << node->local_name () << " (const " << node->local_name ()
<< " &);" << be_nl;
*os << "virtual ~" << node->local_name () << " (void);";
if (be_global->any_support () && !node->anonymous ())
{
*os << be_nl << be_nl
<< "static void _tao_any_destructor (void *);";
}
// Generate the _var_type typedef (only if we are not anonymous).
if (this->ctx_->tdef () != 0)
{
*os << be_nl << be_nl
<< "typedef " << node->local_name () << "_var _var_type;"
<< be_nl
<< "typedef " << node->local_name () << "_out _out_type;"
<< be_nl << be_nl;
}
// TAO provides extensions for octet sequences, first find out if
// the base type is an octet (or an alias for octet).
be_predefined_type *predef = 0;
if (bt->base_node_type () == AST_Type::NT_pre_defined)
{
be_typedef* alias =
be_typedef::narrow_from_decl (bt);
if (alias == 0)
{
predef = be_predefined_type::narrow_from_decl (bt);
}
else
{
predef =
be_predefined_type::narrow_from_decl (
alias->primitive_base_type ()
);
}
}
// Now generate the extension...
if (predef != 0 && predef->pt () == AST_PredefinedType::PT_octet
&& node->unbounded ())
{
*os << "\n\n#if (TAO_NO_COPY_OCTET_SEQUENCES == 1)" << be_nl
<< node->local_name () << " (" << be_idt << be_idt_nl
<< "::CORBA::ULong length," << be_nl
<< "const ACE_Message_Block* mb" << be_uidt_nl
<< ")" << be_uidt_nl
<< " : TAO::unbounded_value_sequence< ::CORBA::Octet>"
<< " (length, mb) {}" << "\n"
<< "#endif /* TAO_NO_COPY_OCTET_SEQUENCE == 1 */";
}
*os << be_uidt_nl
<< "};";
os->gen_endif ();
node->cli_hdr_gen (1);
return 0;
}
void
be_visitor_sequence_ch::gen_varout_typedefs (be_sequence *node,
be_type *elem)
{
TAO_OutStream *os = this->ctx_->stream ();
*os << be_nl << be_nl;
AST_Type::SIZE_TYPE st = elem->size_type ();
*os << "typedef" << be_idt_nl
<< (st == AST_Type::FIXED ? "TAO_FixedSeq_Var_T<"
: "TAO_VarSeq_Var_T<")
<< be_idt << be_idt_nl
<< node->local_name ();
*os << be_uidt_nl
<< ">" << be_uidt_nl
<< node->local_name () << "_var;" << be_uidt;
*os << be_nl << be_nl
<< "typedef" << be_idt_nl
<< "TAO_Seq_Out_T<" << be_idt << be_idt_nl
<< node->local_name () << be_uidt_nl
<< ">" << be_uidt_nl
<< node->local_name () << "_out;" << be_uidt;
}
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