Ruby: опять макросы

..abc
check = {
  firstCondition => lambda { a and b and c },
  second         => lam...
}
if check[ARGV].call bla bla

h = Hash.new
h["понятное слово 1"] = lambda { (aaa=1 and bbb=2 and ccc=3) or (sss=1 and fff=2) }
h["понятное слово 2"] = lambda { to(:be) or (not to(:be)) }
...
(print a; x += 1) if h[word].call

a = lamda {|a, b, c| a and b and c}
a.call true true false

my $a = sub { "sup " + $_[0] };
$a->("/b/")

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

class Proc
  def bind(context)
    p = self
    ->(*args) do
      Class.new do
        def initialize(context)
          @context = context
        end

        def method_missing(m)
          eval m.to_s, @context
        end

        def run(p, *args)
          instance_exec *args, &p
        end
      end.new(context).run p, *args
    end
  end
end

conditions = {}
conditions["hello"] = ->{ world }
conditions["answer"] = ->{ answer }

answer = 42

puts conditions["answer"].bind(binding).call

l = lambda { @a==1 and b==2}
@a = 1
def b; 2; end
l.call