Sha256: 03f6f642744601cad9bcef487824d731e7622cc7337a027947a195ff59c87a09
Contents?: true
Size: 806 Bytes
Versions: 13
Compression:
Stored size: 806 Bytes
Contents
# 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
# end
#
# # good
# if x.nil?
# end
class NilComparison < Cop
MSG = 'Prefer the use of the `nil?` predicate.'.freeze
def_node_matcher :nil_comparison?, '(send _ {:== :===} nil)'
def on_send(node)
nil_comparison?(node) do
add_offense(node, location: :selector)
end
end
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
13 entries across 13 versions & 2 rubygems