lib/rambling/trie/node.rb in rambling-trie-0.6.1 vs lib/rambling/trie/node.rb in rambling-trie-0.7.0

@@ -24,11 +24,11 @@
       attr_accessor :parent
 
       # Creates a new Node.
       # @param [String, nil] word the word from which to create this Node and his branch.
       # @param [Node, nil] parent the parent of this node.
-      def initialize(word = nil, parent = nil)
+      def initialize word = nil, parent = nil
         self.parent = parent
         self.children_tree = {}
 
         unless word.nil? || word.empty?
           self.letter = word.slice! 0
@@ -72,15 +72,14 @@
       protected
 
       attr_writer :children_tree
       attr_accessor :terminal
 
-      def letter=(letter)
-        return unless letter
-
-        letter = letter.to_sym
-        @letter = letter
-        parent[letter] = self if parent
+      def letter= new_letter
+        if new_letter
+          @letter = new_letter.to_sym
+          parent[letter] = self if parent
+        end
       end
     end
   end
 end