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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# Before Ruby 3.0, interpolated strings followed the frozen string literal
# magic comment which sometimes made it necessary to explicitly unfreeze them.
# Ruby 3.0 changed interpolated strings to always be unfrozen which makes
# unfreezing them redundant.
#
# @example
# # bad
# +"#{foo} bar"
#
# # bad
# "#{foo} bar".dup
#
# # good
# "#{foo} bar"
#
class RedundantInterpolationUnfreeze < Base
include FrozenStringLiteral
extend AutoCorrector
extend TargetRubyVersion
MSG = "Don't unfreeze interpolated strings as they are already unfrozen."
RESTRICT_ON_SEND = %i[+@ dup].freeze
minimum_target_ruby_version 3.0
def on_send(node)
return if node.arguments?
return unless (receiver = node.receiver)
return unless receiver.dstr_type?
return if uninterpolated_string?(receiver) || uninterpolated_heredoc?(receiver)
add_offense(node.loc.selector) do |corrector|
corrector.remove(node.loc.selector)
corrector.remove(node.loc.dot) unless node.unary_operation?
end
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems