2018-fumichan-thesis / sinatra-practice / form-sample / vendor / bundle / ruby / 2.5.0 / gems / backports-3.11.4 / lib / backports / rails / kernel.rb

# frozen_string_literal: true

# From ActiveSupport
unless Object.method_defined? :try
  class Object
    def try(*a, &b)
      if a.empty? || respond_to?(a.first)
        if a.empty? && block_given?
          if b.arity == 0
            instance_eval(&b)
          else
            yield self
          end
        else
          public_send(*a, &b)
        end
      end
    end
  end

  class NilClass
    def try(*args)
      nil
    end
  end
end