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# frozen_string_literal: true
require_relative '../../spec_helpers'
module RuboCop
module Cop
module Gitlab
# Cop that disallows the use of `Gitlab::SQL::Union`, in favour of using
# the `FromUnion` module.
class Union < RuboCop::Cop::Cop
include SpecHelpers
MSG = 'Use the `FromUnion` concern, instead of using `Gitlab::SQL::Union` directly'
def_node_matcher :raw_union?, <<~PATTERN
(send (const (const (const nil? :Gitlab) :SQL) :Union) :new ...)
PATTERN
def on_send(node)
return unless raw_union?(node)
return if in_spec?(node)
add_offense(node, location: :expression)
end
end
end
end
end
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