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# frozen_string_literal: true
module RuboCop
module Cop
class RubyInterpolationInTranslation < RuboCop::Cop::Cop
MSG = "Don't use ruby interpolation \#{} inside translated strings, instead use \%{}"
TRANSLATION_METHODS = ':_ :s_ :N_ :n_'
def_node_matcher :translation_method?, <<~PATTERN
(send nil? {#{TRANSLATION_METHODS}} $dstr ...)
PATTERN
def_node_matcher :plural_translation_method?, <<~PATTERN
(send nil? :n_ str $dstr ...)
PATTERN
def on_send(node)
interpolation = translation_method?(node) || plural_translation_method?(node)
return unless interpolation
interpolation.descendants.each do |possible_violation|
add_offense(possible_violation, message: MSG) if possible_violation.type != :str
end
end
end
end
end
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