Contents

# encoding: utf-8

module Rubocop
  module Cop
    module Lint
      # This cop checks for uses of the deprecated class method usages.
      class DeprecatedClassMethods < Cop
        include AST::Sexp

        MSG = '%s is deprecated in favor of %s.'

        DEPRECATED_METHODS = [
          [:File, :exists?, :exist?],
          [:Dir, :exists?, :exist?]
        ]

        def on_send(node)
          receiver, method_name, *_args = *node

          DEPRECATED_METHODS.each do |data|
            next unless receiver == class_node(data)
            next unless method_name == data[1]

            add_offense(node, :selector,
                        MSG.format(deprecated_method(data),
                                   replacement_method(data)))
          end
        end

        def autocorrect(node)
          @corrections << lambda do |corrector|
            receiver, method_name, *_args = *node

            DEPRECATED_METHODS.each do |data|
              next unless receiver == class_node(data)
              next unless method_name == data[1]

              corrector.replace(node.loc.selector,
                                data[2].to_s)
            end
          end
        end

        private

        def class_node(data)
          s(:const, nil, data[0])
        end

        def deprecated_method(data)
          format('%s.%s', data[0], data[1])
        end

        def replacement_method(data)
          format('%s.%s', data[0], data[2])
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rubocop-0.19.1	lib/rubocop/cop/lint/deprecated_class_methods.rb
rubocop-0.19.0	lib/rubocop/cop/lint/deprecated_class_methods.rb