vendor/rails/activesupport/lib/active_support/core_ext/range/blockless_step.rb

   1 module ActiveSupport #:nodoc:
   2   module CoreExtensions #:nodoc:
   3     module Range #:nodoc:
   4       # Return an array when step is called without a block.
   5       module BlocklessStep
   6         def self.included(base) #:nodoc:
   7           base.alias_method_chain :step, :blockless
   8         end
   9
  10         if RUBY_VERSION < '1.9'
  11           def step_with_blockless(value = 1, &block)
  12             if block_given?
  13               step_without_blockless(value, &block)
  14             else
  15               returning [] do |array|
  16                 step_without_blockless(value) { |step| array << step }
  17               end
  18             end
  19           end
  20         else
  21           def step_with_blockless(value = 1, &block)
  22             if block_given?
  23               step_without_blockless(value, &block)
  24             else
  25               step_without_blockless(value).to_a
  26             end
  27           end
  28         end
  29       end
  30     end
  31   end
  32 end