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# frozen_string_literal: true
module RuboCop
module Cop
class StaticTranslationDefinition < RuboCop::Cop::Cop
MSG = "The text you're translating will be already in the translated form when it's assigned to the constant. When a users changes the locale, these texts won't be translated again. Consider moving the translation logic to a method.".freeze
TRANSLATION_METHODS = %i[_ s_ n_].freeze
def_node_matcher :translation_method?, <<~PATTERN
(send _ _ str*)
PATTERN
def_node_matcher :lambda_node?, <<~PATTERN
(send _ :lambda)
PATTERN
def on_send(node)
return unless translation_method?(node)
method_name = node.children[1]
return unless TRANSLATION_METHODS.include?(method_name)
node.each_ancestor do |ancestor|
receiver, _ = *ancestor
break if lambda_node?(receiver) # translations defined in lambda nodes should be allowed
if constant_assignment?(ancestor)
add_offense(node, location: :expression)
break
end
end
end
private
def constant_assignment?(node)
node.type == :casgn
end
end
end
end
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