Sha256: c042fb4da408914ad45eb7ce23a77fb3e1be1997e4723c7cee01111ad34e61f6
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Size: 1023 Bytes
Versions: 10
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Stored size: 1023 Bytes
Contents
# encoding: utf-8
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop makes sure that certain operator methods have their sole
# parameter named `other`.
class OpMethod < Cop
MSG = 'When defining the `%s` operator, ' \
'name its argument `other`.'.freeze
OP_LIKE_METHODS = [:eql?, :equal?].freeze
BLACKLISTED = [:+@, :-@, :[], :[]=, :<<].freeze
TARGET_ARGS = [s(:args, s(:arg, :other)),
s(:args, s(:arg, :_other))].freeze
def on_def(node)
name, args, _body = *node
return unless op_method?(name) &&
args.children.size == 1 &&
!TARGET_ARGS.include?(args)
add_offense(args.children[0], :expression, format(MSG, name))
end
def op_method?(name)
return false if BLACKLISTED.include?(name)
name !~ /\A\w/ || OP_LIKE_METHODS.include?(name)
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems