public static Shrub <T2> Collapse <T2>(Shrub <Shrub <T2> > input)
{
return(input.Match <Shrub <T2> >(
l => Shrub <T2> .Node(l.Select(Collapse <T2>).ToList()),
v => v.Match(Shrub <T2> .Node, Shrub <T2> .Leaf)
));
}
public bool Equal(Shrub <T> input)
{
return(Match <bool>(l1 => input.Match <bool>(l2 =>
{
if (l1.Count != l2.Count)
{
return false;
}
for (int i = 0; i < l1.Count; i++)
{
if (!l1[i].Equal(l2[i]))
{
return false;
}
}
return true;
}, s2 => false), s1 => input.Match <bool>(l2 => false
, s2 => s1.Equals(s2))));
}