public void MatchJoinNode <T>(Action <JoinNode <T> > callback)
where T : class
{
if (_alphaNodes.Count == 0)
{
return;
}
_alphaNodes[0].Select <T>(alpha =>
{
if (_alphaNodes.Count == 1)
{
_configurator.MatchJoinNode(alpha, callback);
return;
}
MemoryNode <T> left = alpha;
for (int i = 1; i < _alphaNodes.Count; i++)
{
_alphaNodes[i].Select <T>(right =>
{
_configurator.MatchJoinNode(left, right, join =>
{
if (i + 1 < _alphaNodes.Count)
{
left = join;
}
else
{
callback(join);
}
});
});
}
});
}
public bool MatchJoinNode <T>(Action <MemoryNode <T> > callback)
where T : class
{
if (_alphaNodes.Count == 0)
{
return(false);
}
if (typeof(T).IsGenericType && typeof(T).GetGenericTypeDefinition() == typeof(Tuple <,>))
{
Type[] arguments = typeof(T).GetGenericArguments();
var tupleNode = (RuleNodeSelector)Activator.CreateInstance(
typeof(TupleRuleNodeSelector <,>).MakeGenericType(arguments[0], arguments[1]),
_configurator, this);
return(tupleNode.Select(callback));
}
var done = new HashSet <int>();
MemoryNode <T> left = null;
for (int index = 0; index < _alphaNodes.Count; index++)
{
if (done.Contains(index))
{
continue;
}
if (_alphaNodes[index].Select <T>(alpha =>
{
done.Add(index);
left = alpha;
for (int i = index + 1; i < _alphaNodes.Count; i++)
{
if (done.Contains(i))
{
continue;
}
_alphaNodes[i].Select <T>(right =>
{
done.Add(i);
_configurator.MatchJoinNode(left, right, join => { left = join; });
});
}
}))
{
break;
}
}
if (left != null)
{
if (left is AlphaNode <T> )
{
_configurator.MatchJoinNode(left, join => { left = join; });
}
callback(left);
return(true);
}
return(false);
}
