protected override Expression VisitSelect(SelectExpression select)
{
select = (SelectExpression)base.VisitSelect(select);
var inExpressions = InExpressionGatherer.Gather(select.Where);
if (!inExpressions.Any())
{
return(select);
}
var newSelect = AddInnerJoins(select, inExpressions);
return(InExpressionRemover.Remove(newSelect, inExpressions));
}
public static ReadOnlyCollection<InExpression> Gather(Expression expression)
{
var gatherer = new InExpressionGatherer();
if (expression == null) {
return gatherer._expressions.ToReadOnly();
}
gatherer.Visit(expression);
if (!gatherer._canRewrite) {
gatherer._expressions.Clear();
}
return gatherer._expressions.ToReadOnly();
}
public static ReadOnlyCollection <InExpression> Gather(Expression expression)
{
var gatherer = new InExpressionGatherer();
if (expression == null)
{
return(gatherer._expressions.ToReadOnly());
}
gatherer.Visit(expression);
if (!gatherer._canRewrite)
{
gatherer._expressions.Clear();
}
return(gatherer._expressions.ToReadOnly());
}
