public SubQueryFilterParser(WhereClauseParser parent, SubQueryExpression expression)
{
_parent = parent;
_expression = expression;
foreach (var @operator in expression.QueryModel.ResultOperators)
{
switch (@operator)
{
case AnyResultOperator _:
Usage = SubQueryUsage.Any;
break;
case CountResultOperator _:
Usage = SubQueryUsage.Count;
break;
case LongCountResultOperator _:
Usage = SubQueryUsage.Count;
break;
case DistinctResultOperator _:
_isDistinct = true;
break;
case ContainsResultOperator op:
Usage = op.Item is QuerySourceReferenceExpression
? SubQueryUsage.Intersect
: SubQueryUsage.Contains;
_contains = op.Item;
break;
// TODO -- add Min/Max/Avg/Sum operators?
default:
throw new BadLinqExpressionException($"Invalid result operator {@operator} in sub query '{expression}'");
}
}
_wheres = expression.QueryModel.BodyClauses.OfType <WhereClause>().ToArray();
}
public BinaryExpressionVisitor(WhereClauseParser parent)
{
_parent = parent;
}