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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Rails
# Looks for delegations that pass :allow_blank as an option
# instead of :allow_nil. :allow_blank is not a valid option to pass
# to ActiveSupport#delegate.
#
# @example
# # bad
# delegate :foo, to: :bar, allow_blank: true
#
# # good
# delegate :foo, to: :bar, allow_nil: true
class DelegateAllowBlank < Base
extend AutoCorrector
MSG = '`allow_blank` is not a valid option, use `allow_nil`.'
RESTRICT_ON_SEND = %i[delegate].freeze
def_node_matcher :allow_blank_option, <<~PATTERN
(send nil? :delegate _ (hash <$(pair (sym :allow_blank) true) ...>))
PATTERN
def on_send(node)
return unless (offending_node = allow_blank_option(node))
add_offense(offending_node) do |corrector|
corrector.replace(offending_node.key, 'allow_nil')
end
end
end
end
end
end
Version data entries
37 entries across 36 versions & 7 rubygems