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// -*- C++ -*-
//=============================================================================
/**
* @file struct_typecode.cpp
*
* Structure TypeCode generation visitor.
*
* @author Ossama Othman <ossama@dre.vanderbilt.edu>
*/
//=============================================================================
#include "typecode.h"
TAO::be_visitor_struct_typecode::be_visitor_struct_typecode (
be_visitor_context * ctx)
: be_visitor_typecode_defn (ctx)
, is_recursive_ (false)
, is_nested_ (false)
{
}
int
TAO::be_visitor_struct_typecode::visit_structure (be_structure * node)
{
if (!node->is_defined ())
{
return this->gen_forward_declared_typecode (node);
}
// Check if we are repeated.
be_visitor_typecode_defn::QNode const * const qnode =
this->queue_lookup (this->tc_queue_, node);
ACE_Unbounded_Queue<AST_Type *> recursion_queue;
bool in_recursion = node->in_recursion (recursion_queue);
if (qnode && in_recursion)
{
// we're repeated and we're recursive so just leave
return 0;
}
else if (this->queue_insert (this->tc_queue_, node, 0) == nullptr)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_struct_typecode::"
"visit_type - "
"queue insert failed\n"),
-1);
}
if (this->recursion_detect_ || this->is_nested_)
{
return 0;
}
// as this was no nested visit mark this typecode as recursive
this->is_recursive_ = in_recursion;
static bool const is_exception = false;
return this->visit (node, is_exception);
}
int
TAO::be_visitor_struct_typecode::visit_exception (be_exception * node)
{
if (this->recursion_detect_)
{
return 0;
}
// No need to check for recursion since exceptions are never
// recursive.
static bool const is_exception = true;
return this->visit (node, is_exception);
}
int
TAO::be_visitor_struct_typecode::visit (AST_Structure * node,
bool is_exception)
{
this->is_nested_ = true;
TAO_OutStream & os = *this->ctx_->stream ();
TAO_INSERT_COMMENT (&os);
if (this->gen_member_typecodes (node) != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"TAO::be_visitor_struct_typecode::visit_structure -"
" Unable to generate structure/exception field "
"TypeCodes.\n"),
-1);
}
ACE_CString const tao_fields ("_tao_fields_");
ACE_CString const fields_name (tao_fields
+ node->flat_name ());
// Generate array containing struct field characteristics.
os << "static TAO::TypeCode::Struct_Field<" << be_idt_nl
<< "char const *," << be_nl
<< "::CORBA::TypeCode_ptr const *> const ";
if (node->nfields () == 0)
{
// Should only be possible for user exceptions with no fields.
os << "* const " << be_idt_nl
<< fields_name.c_str () << " = 0;" << be_uidt_nl << be_uidt_nl;
}
else
{
os << be_idt_nl
<< fields_name.c_str () << "[] =" << be_idt_nl
<< "{" << be_idt_nl;
if (this->visit_members (node) != 0)
{
return -1;
}
os << be_uidt_nl
<< "};" << be_uidt << be_uidt_nl << be_uidt_nl;
}
static char const StringType[] = "char const *";
static char const TypeCodeType[] = "::CORBA::TypeCode_ptr const *";
static char const MemberArrayType[] = "TAO::TypeCode::Struct_Field";
// Generate the TypeCode instantiation.
os << "static ";
if (this->is_recursive_)
{
os << "TAO::TypeCode::Recursive_Type<" << be_idt_nl;
}
// -- TypeCodeBase --
os << "TAO::TypeCode::Struct<" << be_idt_nl
<< StringType << "," << be_nl
<< TypeCodeType << "," << be_nl
<< MemberArrayType << "<" << be_idt_nl
<< StringType << "," << be_nl
<< TypeCodeType << "> const *," << be_uidt_nl
<< "TAO::Null_RefCount_Policy>";
if (this->is_recursive_)
{
os << "," << be_uidt_nl
<< TypeCodeType << "," << be_nl
<< MemberArrayType << "<" << be_idt_nl
<< StringType << "," << be_nl
<< TypeCodeType << "> const *>" << be_uidt;
}
os << be_uidt_nl
<< "_tao_tc_" << node->flat_name () << " (" << be_idt_nl
<< "::CORBA::tk_" << (is_exception ? "except" : "struct") << ","
<< be_nl
<< "\"" << node->repoID () << "\"," << be_nl
<< "\"" << node->original_local_name () << "\"," << be_nl
<< "_tao_fields_" << node->flat_name () << "," << be_nl
<< node->nfields () << ");"
<< be_uidt_nl << be_nl;
if (this->gen_typecode_ptr (dynamic_cast<be_type*> (node)) != 0)
{
return -1;
}
return 0;
}
int
TAO::be_visitor_struct_typecode::gen_member_typecodes (AST_Structure * node)
{
AST_Field ** member_ptr = nullptr;
ACE_CDR::ULong const count = node->nfields ();
for (ACE_CDR::ULong i = 0; i < count; ++i)
{
node->field (member_ptr, i);
be_type * const member_type =
dynamic_cast<be_type*> ((*member_ptr)->field_type ());
if (this->is_typecode_generation_required (member_type)
&& member_type->accept (this) != 0)
{
return -1;
}
/* MCO@20101020 - this is unnecessary since the check for recursiveness
* of *this* typecode has already been done before calling this method
be_structure *bs = dynamic_cast<be_structure*> (node);
if (bs)
{
be_visitor_typecode_defn::QNode const * const qnode =
this->queue_lookup (this->tc_queue_, bs);
ACE_Unbounded_Queue<AST_Type *> recursion_queue;
recursion_queue.enqueue_tail(node);
if (qnode
&& member_type->in_recursion (recursion_queue))
{
this->is_recursive_ = true;
}
}
*/
}
return 0;
}
int
TAO::be_visitor_struct_typecode::visit_members (AST_Structure * node)
{
AST_Field ** member_ptr = nullptr;
ACE_CDR::ULong const count = node->nfields ();
TAO_OutStream & os = *this->ctx_->stream ();
for (ACE_CDR::ULong i = 0; i < count; ++i)
{
node->field (member_ptr, i);
be_decl * const member_decl =
dynamic_cast<be_decl*> (*member_ptr);
be_type * const member_type =
dynamic_cast<be_type*> ((*member_ptr)->field_type ());
os << "{ "
<< "\"" << member_decl->original_local_name () << "\", "
<< "&" << member_type->tc_name ()
<< " }";
if (i < count - 1)
{
os << "," << be_nl;
}
}
return 0;
}
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