Contents

require_relative '../smells'
require_relative 'smell_detector'
require_relative '../configuration/app_configuration'

module Reek
  module Smells
    #
    # Contains all the existing smells and exposes operations on them.
    #
    # @api private
    class SmellRepository
      def self.smell_types
        Reek::Smells::SmellDetector.descendants.sort_by(&:name)
      end

      def initialize(source_description: nil,
                     smell_types: self.class.smell_types,
                     configuration: Configuration::AppConfiguration.new)
        @source_via    = source_description
        @configuration = configuration
        @smell_types   = smell_types

        configuration.directive_for(source_via).each do |klass, config|
          configure klass, config
        end
      end

      def configure(klass, config)
        detector = detectors[klass]
        raise ArgumentError, "Unknown smell type #{klass} found in configuration" unless detector
        detector.configure_with(config)
      end

      def report_on(listener)
        detectors.each_value { |detector| detector.report_on(listener) }
      end

      def examine(scope)
        smell_listeners[scope.type].each do |detector|
          detector.examine(scope)
        end
      end

      def detectors
        @initialized_detectors ||= smell_types.map do |klass|
          { klass => klass.new(source_via) }
        end.reduce({}, :merge)
      end

      private

      private_attr_reader :configuration, :source_via, :smell_types

      def smell_listeners
        @smell_listeners ||= Hash.new { |hash, key| hash[key] = [] }.tap do |listeners|
          detectors.each_value { |detector| detector.register(listeners) }
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
reek-3.2.1	lib/reek/smells/smell_repository.rb
reek-3.2	lib/reek/smells/smell_repository.rb