Contents

# encoding: utf-8

module Rubocop
  module Cop
    class ReduceArguments < Cop
      MSG = 'Name reduce arguments |a, e| (accumulator, element)'

      ARGS_NODE = s(:args, s(:arg, :a), s(:arg, :e))

      def on_block(node)
        # we care only for single line blocks
        return unless Util.block_length(node) == 0

        method_node, args_node, _body_node = *node
        receiver, method_name, _method_args = *method_node

        # discard other scenarios
        return unless receiver
        return unless [:reduce, :inject].include?(method_name)

        unless args_node == ARGS_NODE
          add_offence(:convention, node.loc.line, MSG)
        end

        super
      end
    end
  end
end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
rubocop-0.8.3	lib/rubocop/cop/reduce_arguments.rb
rubocop-0.8.2	lib/rubocop/cop/reduce_arguments.rb
rubocop-0.8.1	lib/rubocop/cop/reduce_arguments.rb
rubocop-0.8.0	lib/rubocop/cop/reduce_arguments.rb