Add block argument to traverse method declarations

makersquare · Jul 2, 2014 · 72598a1 · 72598a1
1 parent 05344a0
commit 72598a1
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/traverse.rb b/lib/traverse.rb
@@ -15,15 +15,15 @@ def self.root_only(tree)
     yield tree.data
   end
 
-  def self.with_preorder(node)
+  def self.with_preorder(node, &block)
     # TODO
   end
 
-  def self.with_inorder(node)
+  def self.with_inorder(node, &block)
     # TODO
   end
 
-  def self.with_postorder(node)
+  def self.with_postorder(node, &block)
     # TODO
   end