Class: Fib::Trie

Inherits:
Object
  • Object
show all
Defined in:
lib/fib/trie.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(key, data, subnode = {}) ⇒ Trie

Returns a new instance of Trie.



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# File 'lib/fib/trie.rb', line 5

def initialize key, data, subnode={}
  @key = key
  @data = data
  @subnode = subnode
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/fib/trie.rb', line 3

def data
  @data
end

#key ⇒ Object

Returns the value of attribute key.



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# File 'lib/fib/trie.rb', line 3

def key
  @key
end

#subnode ⇒ Object

Returns the value of attribute subnode.



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# File 'lib/fib/trie.rb', line 3

def subnode
  @subnode
end

Instance Method Details

#add_sub(key, node) ⇒ Object 



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# File 'lib/fib/trie.rb', line 24

def add_sub key, node
  t = Trie.new key, node
  subnode[key] = t
  t
end

#dig(*node_key) ⇒ Object 



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# File 'lib/fib/trie.rb', line 11

def dig *node_key
  return nil unless node_key.is_a? Array

  if node_key.size < 1
    return data
  end

  current_key = node_key.first
  node_key.shift

  subnode.has_key?(current_key) ? subnode[current_key]&.dig(*node_key) : nil
end