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Path: /opt/chef.upgrade/embedded/lib/ruby/gems/2.3.0/gems/rubocop-0.47.1/lib/rubocop/cop/

Viewing File: offense.rb

# frozen_string_literal: true

module RuboCop
  module Cop
    # An offense represents a style violation detected by RuboCop.
    class Offense
      include Comparable

      # @api private
      COMPARISON_ATTRIBUTES = [:line, :column, :cop_name,
                               :message, :severity].freeze

      # @api public
      #
      # @!attribute [r] severity
      #
      # @return [RuboCop::Cop::Severity]
      attr_reader :severity

      # @api public
      #
      # @!attribute [r] location
      #
      # @return [Parser::Source::Range]
      #   the location where the violation is detected.
      #
      # @see http://rubydoc.info/github/whitequark/parser/Parser/Source/Range
      #   Parser::Source::Range
      attr_reader :location

      # @api public
      #
      # @!attribute [r] message
      #
      # @return [String]
      #   human-readable message
      #
      # @example
      #   'Line is too long. [90/80]'
      attr_reader :message

      # @api public
      #
      # @!attribute [r] cop_name
      #
      # @return [String]
      #   a cop class name without department.
      #   i.e. type of the violation.
      #
      # @example
      #   'LineLength'
      attr_reader :cop_name

      # @api private
      attr_reader :status

      # @api private
      def initialize(severity, location, message, cop_name,
                     status = :uncorrected)
        @severity = RuboCop::Cop::Severity.new(severity)
        @location = location
        @message = message.freeze
        @cop_name = cop_name.freeze
        @status = status
        freeze
      end

      # @api public
      #
      # @!attribute [r] corrected
      #
      # @return [Boolean]
      #   whether this offense is automatically corrected.
      def corrected
        @status == :unsupported ? nil : @status == :corrected
      end
      alias corrected? corrected

      # @api public
      #
      # @!attribute [r] disabled?
      #
      # @return [Boolean]
      #   whether this offense was locally disabled where it occurred
      def disabled?
        @status == :disabled
      end

      # @api public
      #
      # @return [Parser::Source::Range]
      #   the range of the code that is highlighted
      def highlighted_area
        Parser::Source::Range.new(source_line,
                                  column,
                                  column + column_length)
      end

      # @api private
      # This is just for debugging purpose.
      def to_s
        format('%s:%3d:%3d: %s',
               severity.code, line, real_column, message)
      end

      # @api private
      def line
        location.line
      end

      # @api private
      def column
        location.column
      end

      # @api private
      def source_line
        location.source_line
      end

      # @api private
      def column_length
        if first_line == last_line
          column_range.count
        else
          source_line.length - column
        end
      end

      # @api private
      def first_line
        location.first_line
      end

      # @api private
      def last_line
        location.last_line
      end

      # @api private
      def column_range
        location.column_range
      end

      # @api private
      #
      # Internally we use column number that start at 0, but when
      # outputting column numbers, we want them to start at 1. One
      # reason is that editors, such as Emacs, expect this.
      def real_column
        column + 1
      end

      # @api public
      #
      # @return [Boolean]
      #   returns `true` if two offenses contain same attributes
      def ==(other)
        COMPARISON_ATTRIBUTES.all? do |attribute|
          send(attribute) == other.send(attribute)
        end
      end

      alias eql? ==

      def hash
        COMPARISON_ATTRIBUTES.reduce(0) do |hash, attribute|
          hash ^ send(attribute).hash
        end
      end

      # @api public
      #
      # Returns `-1`, `0` or `+1`
      # if this offense is less than, equal to, or greater than `other`.
      #
      # @return [Integer]
      #   comparison result
      def <=>(other)
        COMPARISON_ATTRIBUTES.each do |attribute|
          result = send(attribute) <=> other.send(attribute)
          return result unless result.zero?
        end
        0
      end
    end
  end
end