internal static string StringifyElement(HashSet <NeoValue> seen, NeoValue value)
{
if (value is NeoObject o)
{
if (seen.Contains(value))
{
return("<already-seen>");
}
else
{
seen.Add(value);
return(o.Stringify(seen));
}
}
else if (value is NeoArray a)
{
if (seen.Contains(value))
{
return("[already-seen]");
}
else
{
seen.Add(value);
return(a.Stringify(seen));
}
}
else
{
return(value.ToNeoString());
}
}
public virtual NeoValue Concat(NeoValue other) => NeoString.ValueOf($"{ToNeoString()}{other.ToNeoString()}");