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ExceptionalBijection
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| def orElse[A,B](fna: A => Option[B])(fni: B => Option[A])(implicit bi: Bijection[A,B]): Bijection[A,B] = | |
| new Bijection[A,B] { | |
| def apply(a: A) = fna(a).getOrElse(bij(a)) | |
| override invert(b: B) = fni(b).getOrElse(bij.invert(b)) | |
| } |
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