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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for regexp literals used as `match-current-line`.
# If a regexp literal is in condition, the regexp matches `$_` implicitly.
#
# @example
# # bad
# if /foo/
# do_something
# end
#
# # good
# if /foo/ =~ $_
# do_something
# end
class RegexpAsCondition < Base
include IgnoredNode
extend AutoCorrector
MSG = 'Do not use regexp literal as a condition. ' \
'The regexp literal matches `$_` implicitly.'
def on_match_current_line(node)
return if node.ancestors.none?(&:conditional?)
return if part_of_ignored_node?(node)
add_offense(node) { |corrector| corrector.replace(node, "#{node.source} =~ $_") }
ignore_node(node)
end
end
end
end
end
Version data entries
159 entries across 158 versions & 17 rubygems