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// file : XSCRT/Traversal.txx
// author : Boris Kolpackov <boris@dre.vanderbilt.edu>
// cvs-id : $Id$
namespace XSCRT
{
namespace Traversal
{
// TraverserBase
//
//
template<typename B>
TraverserBase<B>::
~TraverserBase ()
{
}
// DispatcherBase
//
//
template <typename B>
DispatcherBase<B>::
~DispatcherBase ()
{
}
//@@ merge after dropping VC6
//
//
template <typename B>
void DispatcherBase<B>::
dispatch (B& n)
{
LevelMap levels;
//@@ VC6
ExtendedTypeInfo const& ti = extended_type_info (n);
unsigned long max = compute_levels (ti, 0, levels);
//wcerr << "starting dispatch process for "
// << typeid (n).name () << " with "
// << max << " levels" << endl;
for (unsigned long l = 0; l < max + 1; ++l)
{
TypeInfoSet dispatched;
for (typename LevelMap::const_iterator
i (levels.begin ()), e (levels.end ());
i != e; ++i)
{
if (i->second == l)
{
typename TraversalMap::const_iterator v (
traversal_map_.find (i->first.type_id ()));
if (v != traversal_map_.end ())
{
//wcerr << "dispatching traversers for "
// << typeid (n).name () << " as "
// << i->first.type_id ().name () << endl;
//@@ VC6
Traversers const& traversers = v->second;
for (typename Traversers::const_iterator
ti (traversers.begin ()), te (traversers.end ());
ti != te; ++ti)
{
(*ti)->trampoline (n);
}
flatten_tree (i->first, dispatched);
}
}
}
// Remove traversed types from the level map.
//
//@@ VC6
{
for (typename TypeInfoSet::const_iterator i = dispatched.begin ();
i != dispatched.end ();
++i)
{
levels.erase (*i);
}
}
}
}
template <typename B>
void DispatcherBase<B>::
dispatch (B const& n)
{
LevelMap levels;
//@@ VC6
ExtendedTypeInfo const& ti = extended_type_info (n);
unsigned long max = compute_levels (ti, 0, levels);
//wcerr << "starting dispatch process for "
// << typeid (n).name () << " with "
// << max << " levels" << endl;
//wcerr << "using " << &traversal_map_ << " traversal map" << endl;
for (unsigned long l = 0; l < max + 1; ++l)
{
TypeInfoSet dispatched;
for (typename LevelMap::const_iterator
i (levels.begin ()), e (levels.end ());
i != e; ++i)
{
if (i->second == l)
{
typename TraversalMap::const_iterator v (
traversal_map_.find (i->first.type_id ()));
if (v != traversal_map_.end ())
{
//wcerr << "dispatching traversers for "
// << typeid (n).name () << " as "
// << i->first.type_id ().name () << endl;
//@@ VC6
Traversers const& traversers = v->second;
for (typename Traversers::const_iterator
ti (traversers.begin ()), te (traversers.end ());
ti != te; ++ti)
{
(*ti)->trampoline (n);
}
flatten_tree (i->first, dispatched);
}
}
}
// Remove traversed types from the level map.
//
//@@ VC6
{
for (typename TypeInfoSet::const_iterator i = dispatched.begin ();
i != dispatched.end ();
++i)
{
levels.erase (*i);
}
}
}
}
template <typename B>
unsigned long DispatcherBase<B>::
compute_levels (ExtendedTypeInfo const& ti,
unsigned long cur,
LevelMap& map)
{
unsigned long ret = cur;
if (map.find (ti) == map.end () || map[ti] < cur) map[ti] = cur;
for (ExtendedTypeInfo::BaseIterator i = ti.begin_base ();
i != ti.end_base ();
i++)
{
unsigned long t = compute_levels (i->type_info (), cur + 1, map);
if (t > ret) ret = t;
}
return ret;
}
template <typename B>
void DispatcherBase<B>::
flatten_tree (ExtendedTypeInfo const& ti, TypeInfoSet& set)
{
set.insert (ti);
for (ExtendedTypeInfo::BaseIterator i = ti.begin_base ();
i != ti.end_base ();
i++)
{
flatten_tree (i->type_info (), set);
}
}
}
}
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