Sha256: 21da3f4f7b32626ec95fd906086810985961f8711a8ea4f89da344c6c59822b3
Contents?: true
Size: 848 Bytes
Versions: 14
Compression:
Stored size: 848 Bytes
Contents
# encoding: utf-8
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for comparison of something with nil using ==.
#
# @example
#
# # bad
# if x == nil
#
# # good
# if x.nil?
class NilComparison < Cop
MSG = 'Prefer the use of the `nil?` predicate.'.freeze
OPS = [:==, :===].freeze
NIL_NODE = s(:nil)
def on_send(node)
_receiver, method, args = *node
return unless OPS.include?(method)
add_offense(node, :selector) if args == NIL_NODE
end
private
def autocorrect(node)
new_code = node.source.sub(/\s*={2,3}\s*nil/, '.nil?')
->(corrector) { corrector.replace(node.source_range, new_code) }
end
end
end
end
end
Version data entries
14 entries across 14 versions & 2 rubygems