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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for uses of the case equality operator(===).
#
# @example
# # bad
# Array === something
# (1..100) === 7
# /something/ === some_string
#
# # good
# something.is_a?(Array)
# (1..100).include?(7)
# some_string =~ /something/
#
class CaseEquality < Cop
MSG = 'Avoid the use of the case equality operator `===`.'.freeze
def_node_matcher :case_equality?, '(send _ :=== _)'
def on_send(node)
case_equality?(node) { add_offense(node, location: :selector) }
end
end
end
end
end
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6,907 entries across 6,901 versions & 26 rubygems