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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Rails
# This cop 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 < Cop
MSG = '`allow_blank` is not a valid option, use `allow_nil`.'
def_node_matcher :allow_blank_option, <<~PATTERN
(send nil? :delegate _ (hash <$(pair (sym :allow_blank) true) ...>))
PATTERN
def on_send(node)
allow_blank_option(node) do |offending_node|
add_offense(offending_node)
end
end
def autocorrect(pair_node)
lambda do |corrector|
corrector.replace(pair_node.key.source_range, 'allow_nil')
end
end
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems