43 lines
625 B
Ruby
43 lines
625 B
Ruby
class Version
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NULL = Class.new do
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include Comparable
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def <=>(_other)
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-1
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end
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def eql?(_other)
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# Makes sure that the same instance of Version::NULL
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# will never equal itself; normally Comparable#==
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# will return true for this regardless of the return
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# value of #<=>
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false
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end
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def detected_from_url?
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false
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end
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def head?
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false
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end
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def null?
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true
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end
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def to_f
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Float::NAN
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end
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def to_s
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""
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end
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alias_method :to_str, :to_s
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def inspect
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"#<Version::NULL>".freeze
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end
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end.new
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end
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