public void ExitOptionalWhere(QueryParser.OptionalWhereContext context)
{
if (context.WHERE() != null)
{
if (_expressions.Count <= 0)
{
// the predicate is invalid and we can't compile any part of it
return;
}
var query = _queries.Pop();
var predicate = _expressions.Pop();
_queries.Push(query.Where(predicate));
}
}
/// <summary>
/// Exit a parse tree produced by <see cref="QueryParser.optionalWhere"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitOptionalWhere([NotNull] QueryParser.OptionalWhereContext context)
{
}
public void EnterOptionalWhere(QueryParser.OptionalWhereContext context)
{
}