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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for parentheses in the definition of a method,
# that does not take any arguments. Both instance and
# class/singleton methods are checked.
#
# @example
#
# # bad
# def foo()
# # does a thing
# end
#
# # good
# def foo
# # does a thing
# end
#
# # also good
# def foo() does_a_thing end
#
# @example
#
# # bad
# def Baz.foo()
# # does a thing
# end
#
# # good
# def Baz.foo
# # does a thing
# end
class DefWithParentheses < Cop
MSG = "Omit the parentheses in defs when the method doesn't accept " \
'any arguments.'.freeze
def on_def(node)
return if node.single_line?
return unless !node.arguments? && node.arguments.loc.begin
add_offense(node.arguments, location: :begin)
end
alias on_defs on_def
def autocorrect(node)
lambda do |corrector|
corrector.remove(node.loc.begin)
corrector.remove(node.loc.end)
end
end
end
end
end
end
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