public string VisitMutableBox(MutableBoxDatum d)
{
if (boxReferences.BoxesReferenced.ContainsKey(d))
{
if (boxesStarted.Contains(d))
{
return("#b[" + boxReferences.BoxesReferenced[d].Visit(this) + "]");
}
else
{
boxesStarted = boxesStarted.Add(d);
return("#b[" + boxReferences.BoxesReferenced[d].Visit(this) + "]=" + d.Content.Visit(this));
}
}
else
{
return("#b=" + d.Content.Visit(this));
}
}
public static IEnumerable <JoinResult <Datum, bool, Option <Datum> > > FullJoin(SetDatum left, DictionaryDatum right)
{
SetDatum keys = SetDatum.Union(left, right.Keys);
return(keys.Select(k => new JoinResult <Datum, bool, Option <Datum> >(k, left.Contains(k), right.TryGet(k))));
}
public static IEnumerable <JoinResult <Datum, bool, Datum> > RightJoin(SetDatum left, DictionaryDatum right)
{
return(right.Keys.Select(k => new JoinResult <Datum, bool, Datum>(k, left.Contains(k), right[k])));
}
public static IEnumerable <JoinResult <Datum, Datum, bool> > LeftJoin(DictionaryDatum left, SetDatum right)
{
return(left.Keys.Select(k => new JoinResult <Datum, Datum, bool>(k, left[k], right.Contains(k))));
}
public static IEnumerable <JoinResult <Datum, bool, bool> > FullJoin(SetDatum left, SetDatum right)
{
SetDatum keys = SetDatum.Union(left, right);
return(keys.Select(k => new JoinResult <Datum, bool, bool>(k, left.Contains(k), right.Contains(k))));
}
public static IEnumerable <JoinResult <Datum, bool, Nothing> > RightJoin(SetDatum left, SetDatum right)
{
return(right.Select(k => new JoinResult <Datum, bool, Nothing>(k, left.Contains(k), Nothing.Value)));
}
public static IEnumerable <JoinResult <Datum, Nothing, bool> > LeftJoin(SetDatum left, SetDatum right)
{
return(left.Select(k => new JoinResult <Datum, Nothing, bool>(k, Nothing.Value, right.Contains(k))));
}