module Hamster::Associable

def dig(key, *rest)

Returns:
  • (Object) - 
def dig(key, *rest)
  value = get(key)
  if rest.empty? || value.nil?
    value
  elsif value.respond_to?(:dig)
    value.dig(*rest)
  end
end

def update_in(*key_path, &block)

Returns:
  • (Associable) -

Other tags:
    Yieldreturn: - The new value to store

Other tags:
    Yield: - The previously stored value

Parameters:
  • key_path (Object(s)) -- List of keys/indexes which form the path to the key to be modified 
def update_in(*key_path, &block)
  if key_path.empty?
    raise ArgumentError, "must have at least one key in path"
  end
  key = key_path[0]
  if key_path.size == 1
    new_value = block.call(fetch(key, nil))
  else
    value = fetch(key, EmptyHash)
    new_value = value.update_in(*key_path[1..-1], &block)
  end
  put(key, new_value)
end