31 lines
516 B
Ruby
31 lines
516 B
Ruby
# encoding: utf-8
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module Mutant
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class Mutator
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class Node
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# Mutator for nth-ref nodes
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class NthRef < self
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handle :nth_ref
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children :number
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private
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# Perform dispatch
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#
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# @return [undefined]
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#
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# @api private
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#
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def dispatch
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unless number.equal?(1)
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emit_number(number - 1)
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end
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emit_number(number + 1)
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end
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end # NthRef
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end # Node
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end # Mutator
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end # Mutant
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