module Tree
with method depth defined as before.
with method depth defined as before.
Now types `Tree(Empty | Leaf | Node)`, `Empty`, `Leaf(Integer)` and `Node(Tree, Tree)` are defined. Let's add a method, don't miss the **pattern matching** example.
Now types `Tree(Empty | Leaf | Node)`, `Empty`, `Leaf(Integer)` and `Node(Tree, Tree)` are defined. Let's add a method, don't miss the **pattern matching** example.
Public Instance Methods
depth()
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# File doc/data.in.rb, line 10 def depth match self, Tip.to_m >> 0, Node.(any, ~any, ~any) >-> left, right do 1 + [left.depth, right.depth].max end end