public override Expression Visit(Expression expression)
{
if (expression != null)
{
var saveCannotBeEvaluated = cannotBeEvaluated;
cannotBeEvaluated = false;
var query = QueryableHelper.GetQuerableMember(expression);
if (query != null)
{
Visit(query.Expression);
}
else
{
base.Visit(expression);
}
if (!cannotBeEvaluated)
{
if (fnCanBeEvaluated(expression))
{
candidates.Add(expression);
}
else
{
cannotBeEvaluated = true;
}
}
cannotBeEvaluated |= saveCannotBeEvaluated;
}
return(expression);
}
public override Expression Visit(Expression expression)
{
if (expression == null)
{
return(null);
}
var query = QueryableHelper.GetQuerableMember(expression);
if (query != null)
{
return(Visit(query.Expression));
}
else if (candidates.Contains(expression))
{
return(Evaluate(expression));
}
return(base.Visit(expression));
}