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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Rails
# Checks for the use of `Time.zone=` method.
#
# The `zone` attribute persists for the rest of the Ruby runtime, potentially causing
# unexpected behavior at a later time.
# Using `Time.use_zone` ensures the code passed in the block is the only place Time.zone is affected.
# It eliminates the possibility of a `zone` sticking around longer than intended.
#
# @example
# # bad
# Time.zone = 'EST'
#
# # good
# Time.use_zone('EST') do
# end
#
class TimeZoneAssignment < Base
MSG = 'Use `Time.use_zone` with block instead of `Time.zone=`.'
RESTRICT_ON_SEND = %i[zone=].freeze
def_node_matcher :time_zone_assignment?, <<~PATTERN
(send (const {nil? cbase} :Time) :zone= ...)
PATTERN
def on_send(node)
return unless time_zone_assignment?(node)
add_offense(node)
end
end
end
end
end
Version data entries
32 entries across 31 versions & 6 rubygems