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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// direct_collocated_ss.cpp
//
// = DESCRIPTION
// Visitor generating code for direct_collocated Operation in the skeleton.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_operation.h"
ACE_RCSID(be_visitor_operation, direct_collocated_ss, "$Id$")
// *************************************************************************
// be_visitor_operation_direct_collocated_ss --
// This visitor generates code for the direct_collocated operation signature in a
// server skeletons file
// *************************************************************************
be_visitor_operation_direct_collocated_ss::be_visitor_operation_direct_collocated_ss
(be_visitor_context *ctx)
: be_visitor_scope (ctx)
{
}
be_visitor_operation_direct_collocated_ss::~be_visitor_operation_direct_collocated_ss (void)
{
}
int be_visitor_operation_direct_collocated_ss::visit_operation (be_operation *node)
{
TAO_OutStream *os = this->ctx_->stream ();
// We need the interface node in which this operation was defined. However,
// if this operation node was an attribute node in disguise, we get this
// information from the context
be_interface *intf;
intf = this->ctx_->attribute ()
? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
: be_interface::narrow_from_scope (node->defined_in ());
if (!intf)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_direct_collocated_ss::"
"visit_operation - "
"bad interface scope\n"),
-1);
}
// retrieve the operation return type
be_type *bt = be_type::narrow_from_decl (node->return_type ());
if (!bt)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_direct_collocated_ss::"
"visit_operation - "
"Bad return type\n"),
-1);
}
// STEP 2: generate the return type mapping (same as in the header file)
be_visitor_context ctx (*this->ctx_);
ctx.state (TAO_CodeGen::TAO_OPERATION_RETTYPE_OTHERS);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_operation_direct_collocated_ss::"
"visit_operation - "
"Bad visitor for return type\n"),
-1);
}
if (bt->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_direct_collocated_ss::"
"visit_operation - "
"codegen for return type failed\n"),
-1);
}
delete visitor;
*os << " " << intf->full_coll_name (be_interface::DIRECT) << "::"
<< node->local_name () << " ";
// STEP 4: generate the argument list with the appropriate mapping (same as
// in the header file)
ctx = *this->ctx_;
ctx.state (TAO_CodeGen::TAO_OPERATION_ARGLIST_OTHERS);
visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_operation_cs::"
"visit_operation - "
"Bad visitor to return type\n"),
-1);
}
if (node->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_cs::"
"visit_operation - "
"codegen for argument list failed\n"),
-1);
}
delete visitor;
*os << "{" << be_idt << "\n";
os->indent ();
if (!this->void_return_type (bt))
{
*os << "return ";
}
*os << "this->servant_";
if (this->gen_invoke (ctx, node) == -1)
return -1;
*os << be_uidt_nl
<< "}\n\n";
return 0;
}
int be_visitor_operation_direct_collocated_ss::gen_invoke (be_visitor_context &ctx,
be_operation *node)
{
TAO_OutStream *os = this->ctx_->stream ();
*os << "->" << node->local_name () << " ("
<< be_idt << be_idt << "\n";
ctx = *this->ctx_;
ctx.state (TAO_CodeGen::TAO_OPERATION_COLLOCATED_ARG_UPCALL_SS);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor || (node->accept (visitor) == -1))
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_direct_collocated_ss::"
"gen_invoke - "
"codegen for making upcall failed\n"),
-1);
}
// end the upcall
*os << be_uidt_nl
<< ");\n" << be_uidt;
return 0;
}
int
be_visitor_operation_direct_collocated_ss::void_return_type (be_type *bt)
{
// is the operation return type void?
if (bt->node_type () == AST_Decl::NT_pre_defined
&& (be_predefined_type::narrow_from_decl (bt)->pt ()
== AST_PredefinedType::PT_void))
return 1;
else
return 0;
}
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