mspec/lib/mspec/helpers/const_lookup.rb
require 'mspec/utils/version'
module Kernel
def const_lookup(c)
extra_arg = SpecVersion.new(RUBY_VERSION) >= "1.9"
names = c.split '::'
names.shift if names.first.empty?
names.inject(Object) do |m, n|
defined = extra_arg ? m.const_defined?(n, false) : m.const_defined?(n)
defined ? m.const_get(n) : m.const_missing(n)
end
end
end