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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Rails
# This cop checks for the use of `I18n.locale=` method.
#
# The `locale` attribute persists for the rest of the Ruby runtime, potentially causing
# unexpected behavior at a later time.
# Using `I18n.with_locale` ensures the code passed in the block is the only place `I18n.locale` is affected.
# It eliminates the possibility of a `locale` sticking around longer than intended.
#
# @example
# # bad
# I18n.locale = :fr
#
# # good
# I18n.with_locale(:fr) do
# end
#
class I18nLocaleAssignment < Base
MSG = 'Use `I18n.with_locale` with block instead of `I18n.locale=`.'
RESTRICT_ON_SEND = %i[locale=].freeze
def_node_matcher :i18n_locale_assignment?, <<~PATTERN
(send (const {nil? cbase} :I18n) :locale= ...)
PATTERN
def on_send(node)
return unless i18n_locale_assignment?(node)
add_offense(node)
end
end
end
end
end
Version data entries
17 entries across 17 versions & 2 rubygems