Call Error

-- CODE
class Subs
    def initialize(name, &block)
        @@subs = {} if @@subs == nil
        @@subs[name.to_sym] = {:code => block}
    end

    def Subs.call(name, *args)
        sym = name.to_sym
        @@subs[sym][:args] = args.reverse
        @@subs[sym][:args_const] = args.reverse
        @@subs[sym][:code].call(args)
        @@calling = sym
    end

    def shift
        ret   = @@subs[@@calling][:args].last
        @@subs[@@calling][:args] = @@subs[@@calling][:args_const].take @@subs[@@calling][:args].length - 2
        return ret
    end

end

-- ERROR

irb(main):148:0> Subs.new 'test', { puts 'lol'}
SyntaxError: (irb):148: syntax error, unexpected tSTRING_BEG, expecting keyword_do or '{' or '('
Subs.new 'test', { puts 'lol'}
                         ^
(irb):148: syntax error, unexpected '}', expecting $end
    from /usr/bin/irb:12:in `<main>'