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//=============================================================================
/**
* @file marshal_cs.cpp
*
* Concrete visitor for valuetypes.
* This one provides code generation for marshalling.
*
* @author Torsten Kuepper <kuepper2@lfa.uni-wuppertal.de>
*/
//=============================================================================
#include "valuetype.h"
be_visitor_valuetype_marshal_cs::be_visitor_valuetype_marshal_cs (
be_visitor_context *ctx
)
: be_visitor_scope (ctx)
{
}
be_visitor_valuetype_marshal_cs::~be_visitor_valuetype_marshal_cs ()
{
}
int
be_visitor_valuetype_marshal_cs::visit_valuetype (be_valuetype *node)
{
TAO_OutStream *os = this->ctx_->stream ();
this->ctx_->sub_state (TAO_CodeGen::TAO_CDR_OUTPUT);
*os << "// TAO_IDL - Generated from" << be_nl
<< "// " << __FILE__ << ":" << __LINE__ << be_nl_2;
*os << "::CORBA::Boolean" << be_nl;
this->class_name (node, os);
*os << "::_tao_marshal_state (TAO_OutputCDR &";
be_valuetype *inh = node->statefull_inherit ();
// If the valuetype has no fields, and no stateful inherit,
// the stream arg is unused.
if (inh != nullptr || node->data_members_count () > 0)
{
*os << "strm";
}
*os << ", TAO_ChunkInfo&";
// If the valuetype has no fields, and no stateful inherit,
// the chunking helper arg is unused.
if (inh != nullptr || node->data_members_count () > 0)
{
*os << "ci";
}
*os << ") const" << be_nl
<< "{" << be_idt_nl;
if (inh)
{
*os << "if (! ci.start_chunk (strm))" << be_idt_nl;
*os << "return false;" << be_uidt_nl << be_nl;
if (inh->opt_accessor ())
{
*os << "if (!this->";
this->class_name (inh, os);
*os << "::_tao_marshal_state (strm, ci))" << be_idt_nl
<< "{" << be_idt_nl
<< "return false;" << be_uidt_nl
<< "}" << be_uidt_nl << be_nl;
}
// Can access base class only via virtual function.
else
{
*os << "if (! this->_tao_marshal__"
<< inh->flat_name ()
<< " (strm, ci))" << be_idt_nl
<< "{" << be_idt_nl
<< "return false;" << be_uidt_nl
<< "}" << be_uidt_nl << be_nl;
}
}
be_visitor_context new_ctx = *this->ctx_;
be_visitor_valuetype_field_cdr_decl field_out_cdr (&new_ctx);
if (field_out_cdr.visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_valuetype_marshal_cs::")
ACE_TEXT ("visit_valuetype - ")
ACE_TEXT ("codegen for field out ")
ACE_TEXT ("cdr scope failed\n")),
-1);
}
if (node->data_members_count () > 0)
{
*os << "if (! ci.start_chunk (strm))" << be_idt_nl;
*os << "return false;" << be_uidt_nl << be_nl;
*os << "CORBA::Boolean const ret = " << be_idt << be_idt_nl;
// All we have to do is to visit the scope and generate code.
this->gen_fields (node,
*this->ctx_);
*os << ";" << be_uidt << be_uidt_nl;
*os << "if ( ! ret) " << be_idt_nl;
*os << "return false; " << be_uidt_nl << be_nl;
*os << "if (! ci.end_chunk (strm))" << be_idt_nl;
*os << "return false;" << be_uidt_nl << be_nl;
}
if (inh)
{
*os << "if (! ci.end_chunk (strm))" << be_idt_nl;
*os << "return false;" << be_uidt_nl << be_nl;
}
*os << "return true;" << be_uidt_nl;
*os << "}" << be_nl_2;
// Set the substate as generating code for the input operator.
this->ctx_->sub_state (TAO_CodeGen::TAO_CDR_INPUT);
*os << "::CORBA::Boolean" << be_nl;
this->class_name (node, os);
*os << "::_tao_unmarshal_state (TAO_InputCDR &";
// If the valuetype has no fields, and no stateful inherit,
// the stream arg is unused.
if (inh != nullptr || node->data_members_count () > 0)
{
*os << "strm";
}
*os << ", TAO_ChunkInfo&";
// If the valuetype has no fields, and no stateful inherit,
// the chunking helper arg is unused.
if (inh != nullptr || node->data_members_count () > 0)
{
*os << "ci";
}
*os << ")" << be_nl
<< "{" << be_idt_nl;
if (inh)
{
*os << "if (!ci.handle_chunking (strm))" << be_idt_nl;
*os << "return false;" << be_uidt_nl << be_nl;
if (inh->opt_accessor ())
{
*os << "if (!this->";
this->class_name (inh, os);
*os << "::_tao_unmarshal_state (strm, ci))" << be_idt_nl
<< "{" << be_idt_nl
<< "return false;" << be_uidt_nl
<< "}" << be_uidt_nl << be_nl;
}
else // only can access base class via virtual function
{
*os << "if (!this->_tao_unmarshal__"
<< inh->flat_name ()
<< " (strm, ci))" << be_idt_nl
<< "{" << be_idt_nl
<< "return false;" << be_uidt_nl
<< "}" << be_uidt_nl << be_nl;
}
}
be_visitor_valuetype_field_cdr_decl field_in_cdr (&new_ctx);
if (field_in_cdr.visit_scope (node) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_valuetype_marshal_cs::")
ACE_TEXT ("visit_valuetype - ")
ACE_TEXT ("codegen for field in ")
ACE_TEXT ("cdr scope failed\n")),
-1);
}
if (node->data_members_count () > 0)
{
*os << "if (!ci.handle_chunking (strm))" << be_idt_nl;
*os << "return false;" << be_uidt_nl << be_nl;
*os << "CORBA::Boolean const ret = " << be_idt << be_idt_nl;
// All we have to do is to visit the scope and generate code.
this->gen_fields (node,
*this->ctx_);
*os << ";" << be_uidt << be_uidt_nl;
*os << "if (!ret) " << be_idt_nl;
*os << "return false; " << be_uidt_nl << be_nl;
*os << "if (this->require_truncation_)" << be_idt_nl;
*os << "return ci.skip_chunks (strm);" << be_uidt_nl << be_nl;
*os << "else" << be_idt_nl;
*os << "return ci.handle_chunking (strm);" << be_uidt_nl << be_nl;
}
else
*os << "return true;";
*os << be_uidt_nl << "}" << be_nl_2;
*os << "void" << be_nl;
this->class_name (node, os);
*os << "::truncation_hook ()" << be_nl
<< "{" << be_idt_nl
<< "this->require_truncation_ = true;" << be_uidt_nl
<< "}" << be_nl_2;
return 0;
}
int
be_visitor_valuetype_marshal_cs::visit_eventtype (be_eventtype *node)
{
return this->visit_valuetype (node);
}
void
be_visitor_valuetype_marshal_cs::class_name (be_valuetype *node,
TAO_OutStream *os)
{
if (node->opt_accessor ())
{
be_decl *scope =
dynamic_cast<be_scope*> (node->defined_in ())->decl ();
*os << scope->name () << "::"
<< node->local_name ();
}
else
{
*os << node->full_obv_skel_name ();
}
}
// Operations for field marshaling.
int
be_visitor_valuetype_marshal_cs::gen_fields (be_valuetype *node,
be_visitor_context &ctx)
{
int n_processed = 0;
TAO_OutStream *os = ctx.stream ();
this->elem_number_ = 0;
// Initialize an iterator to iterate thru our scope.
for (UTL_ScopeActiveIterator si (node, UTL_Scope::IK_decls);
!si.is_done ();
si.next())
{
AST_Decl *d = si.item ();
if (!d)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_scope::visit_scope - ")
ACE_TEXT ("bad node in this scope\n")),
-1);
}
// (JP) 2010-10-21
// be_attribute now inherits from be_field, so we need this check.
be_attribute *attr = dynamic_cast<be_attribute*> (d);
be_field *field = dynamic_cast<be_field*> (d);
if (field != nullptr && attr == nullptr)
{
if (n_processed > 0)
{
*os << " &&" << be_nl;
}
++n_processed;
be_visitor_valuetype_field_cdr_cs visitor (&ctx);
visitor.pre_ = node->field_pd_prefix ();
visitor.post_ = node->field_pd_postfix ();
if (visitor.visit_field (field) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("be_visitor_valuetype_marshal_cs::")
ACE_TEXT ("visit_valuetype - ")
ACE_TEXT ("codegen for scope failed\n")),
-1);
}
}
}
if (n_processed == 0)
{
*os << "true";
}
return 0;
}
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