public static bool HasField <T>(this FilterNode <T>?filter, string field)
{
if (filter == null)
{
return(false);
}
var fields = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
filter.AddFields(fields);
return(fields.Contains(field));
}
public static FilterNode <TValue>?Optimize(FilterNode <TValue> source)
{
return(source?.Accept(Instance));
}
public static FilterNode <TValue>?Transform(FilterNode <TValue> node)
{
return(node.Accept(Instance, None.Value));
}
public void FromSource(FilterNode <IJsonValue> source)
{
throw new NotSupportedException();
}
public static FilterNode Transform(FilterNode node)
{
return(node.Accept(Instance));
}
public static NegateFilter <ClrValue> Not(FilterNode <ClrValue> filter)
{
return(new NegateFilter <ClrValue>(filter));
}
public NegateFilter(FilterNode <TValue> filter)
{
Guard.NotNull(filter, nameof(filter));
Filter = filter;
}
