2018-fumichan-thesis / sinatra-practice / form-sample / vendor / bundle / ruby / 2.5.0 / gems / backports-3.11.4 / lib / backports / 2.3.0 / hash / lt.rb

unless Hash.method_defined? :<
  require 'backports/tools/arguments'
  class Hash
    def <(hash)
      hash = Backports.coerce_to_hash(hash)
      return false unless size < hash.size
      each do |k, v|
        v2 = hash.fetch(k){ return false }
        return false unless v2 == v
      end
      true
    end
  end
end