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module Lrama
class Grammar
# type: :dollar or :at
# name: String (e.g. $$, $foo, $expr.right)
# number: Integer (e.g. $1)
# index: Integer
# ex_tag: "$<tag>1" (Optional)
class Reference < Struct.new(:type, :name, :number, :index, :ex_tag, :first_column, :last_column, keyword_init: true)
def value
name || number
end
end
end
end
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