A pure Ruby implementation of curry for Proc objects

curry.rb

# A pure Ruby implementation of curry for Proc objects.
#
# For example
#
#     >> f = Proc.new { |x, y| x**y }
#     => #<Proc:0x007fb662016c18@(eval):1>
#     >> curry(f).call(5).call(3)
#     => 125
#
def curry(p)
  eval(
    (1..p.arity).
      to_a.
      reverse.
      inject("p.call(#{(1..p.arity).map { |n| "x#{n}" }.join(', ')})") do |result, n|
        "Proc.new { |x#{n}| #{result} }"
      end
  )
end