23 lines
440 B
Ruby
23 lines
440 B
Ruby
module Mutant
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class Matcher
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# A null matcher, that does not match any subjects
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class Null < self
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include Concord.new
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# Enumerate subjects
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#
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# @return [Enumerator<Subject]
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# if no block given
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#
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# @return [self]
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# otherwise
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#
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# @api private
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def each
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return to_enum unless block_given?
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self
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end
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end # Null
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end # Matcher
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end # Mutant
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