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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Style
# This cop checks for uses of `DateTime` that should be replaced by
# `Date` or `Time`.
#
# @example
#
# # bad - uses `DateTime` for current time
# DateTime.now
#
# # good - uses `Time` for current time
# Time.now
#
# # bad - uses `DateTime` for modern date
# DateTime.iso8601('2016-06-29')
#
# # good - uses `Date` for modern date
# Date.iso8601('2016-06-29')
#
# # good - uses `DateTime` with start argument for historical date
# DateTime.iso8601('1751-04-23', Date::ENGLAND)
class DateTime < Cop
MSG = 'Prefer Date or Time over DateTime.'.freeze
def_node_matcher :date_time?, <<-PATTERN
(send (const {nil? (cbase)} :DateTime) ...)
PATTERN
def_node_matcher :historic_date?, <<-PATTERN
(send _ _ _ (const (const nil? :Date) _))
PATTERN
def on_send(node)
return unless date_time?(node)
return if historic_date?(node)
add_offense(node)
end
end
end
end
end
Version data entries
13 entries across 13 versions & 2 rubygems