private static ColumnReferenceExpression ExtractColumnReferenceOrDie(SelectFieldExpression c)
{
var result = c.Expression as ColumnReferenceExpression;
if (result == null)
{
const string messageFormat = "could not determine subquery property name from expression [{0}]";
throw new NotSupportedException(string.Format(messageFormat, c.Expression));
}
return(result);
}
public override SelectFieldExpression VisitSelectField(SelectFieldExpression clause)
{
WithCurrentPart(SelectPart.Select, () => base.VisitSelectField(clause));
return(clause);
}
public virtual SelectFieldExpression VisitSelectField(SelectFieldExpression clause)
{
clause.Expression = Visit(clause.Expression);
return(clause);
}
public override SelectFieldExpression VisitSelectField(SelectFieldExpression clause)
{
Visit(clause.Expression);
WriteAlias(clause.Alias);
return(clause);
}
