protected void logPush(SemanticItem item)
{
if (_queryLog.Count == 0)
{
//logging is not enabled
return;
}
Log.QueryPush(item);
var peek = _queryLog.Peek();
if (peek.Query == item)
{
_queryLog.Push(peek);
}
else
{
var log = new QueryLog(item);
if (_expectDependencyQuery)
{
log.IsDependency = true;
_expectDependencyQuery = false;
}
peek.AddSubquery(log);
_queryLog.Push(log);
}
}
internal void AddSubquery(QueryLog subquery)
{
if (subquery.Parent != null)
{
throw new InvalidOperationException("Cannot reset parent.");
}
if (subquery == this)
{
throw new InvalidOperationException("Cannot set self as a parent.");
}
subquery.Parent = this;
if (subquery.IsDependency)
{
_dependencyQueries.Add(subquery);
}
else
{
_subqueries.Add(subquery);
}
}