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// $Id$
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// operation_ih.cpp
//
// = DESCRIPTION
// Visitor generating code for Operation in the implementation header
//
// = AUTHOR
// Yamuna Krishnamurthy (yamuna@cs.wustl.edu)
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_operation.h"
ACE_RCSID(be_visitor_operation, operation_ih, "$Id$")
// ************************************************************
// Operation visitor for implementation header
// ************************************************************
be_visitor_operation_ih::be_visitor_operation_ih (be_visitor_context *ctx)
: be_visitor_operation (ctx)
{
}
be_visitor_operation_ih::~be_visitor_operation_ih (void)
{
}
int
be_visitor_operation_ih::visit_operation (be_operation *node)
{
TAO_OutStream *os; // output stream
be_type *bt; // type node representing the return type
os = this->ctx_->stream ();
this->ctx_->node (node); // save the node
os->indent (); // start with the current indentation level
// every operation is declared virtual in the client code
*os << "virtual ";
// STEP I: generate the return type
bt = be_type::narrow_from_decl (node->return_type ());
if (!bt)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_sh::"
"visit_operation - "
"Bad return type\n"),
-1);
}
// grab the right visitor to generate the return type
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_ih::"
"visit_operation - "
"Bad visitor to return type\n"),
-1);
}
if (bt->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_ih::"
"visit_operation - "
"codegen for return type failed\n"),
-1);
}
delete visitor;
// STEP 2: generate the operation name
*os << " " << node->local_name ();
// STEP 3: generate the argument list with the appropriate mapping. For these
// we grab a visitor that generates the parameter listing
ctx = *this->ctx_;
ctx.state (TAO_CodeGen::TAO_OPERATION_ARGLIST_IH);
visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_operation_ih::"
"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_ih::"
"visit_operation - "
"codegen for argument list failed\n"),
-1);
}
delete visitor;
//generate the exceptions that are thrown by the operation
gen_raise_exception (node);
*os << ";\n\n";
return 0;
}
//Method to generate the exceptions that are thrown by the operation
int
be_visitor_operation_ih::gen_raise_exception (be_operation *node)
{
TAO_OutStream *os = this->ctx_->stream (); // grab the out stream
if (node->exceptions ())
{
os->indent ();
// initialize an iterator to iterate thru the exception list
UTL_ExceptlistActiveIterator *ei;
ACE_NEW_RETURN (ei,
UTL_ExceptlistActiveIterator (node->exceptions ()),
-1);
*os << be_idt_nl << "TAO_THROW_SPEC ((";
// continue until each element is visited
while (!ei->is_done ())
{
be_exception *excp = be_exception::narrow_from_decl (ei->item ());
if (excp == 0)
{
delete ei;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_exceptlist_cs"
"visit_operation - "
"codegen for scope failed\n"), -1);
}
// allocator method
*os << excp->name ();
ei->next ();
if (!ei->is_done ())
{
*os << "," <<be_nl<<"\t\t";
//os->indent ();
}
// except the last one is processed?
} // end of while loop
delete ei;
*os << "))"<<be_uidt;
} // end of if
return 0;
}
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