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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This cop checks for the presence of `when` branches without a body.
#
# @example
#
# # bad
# case foo
# when bar
# do_something
# when baz
# end
#
# @example
#
# # good
# case condition
# when foo
# do_something
# when bar
# nil
# end
#
# @example AllowComments: true (default)
#
# # good
# case condition
# when foo
# do_something
# when bar
# # noop
# end
#
# @example AllowComments: false
#
# # bad
# case condition
# when foo
# do_something
# when bar
# # do nothing
# end
#
class EmptyWhen < Base
MSG = 'Avoid `when` branches without a body.'
def on_case(node)
node.each_when do |when_node|
next if when_node.body
next if cop_config['AllowComments'] && comment_lines?(node)
add_offense(when_node)
end
end
end
end
end
end
Version data entries
69 entries across 69 versions & 8 rubygems