Adapt ZIO.someOrFailException to improve interop with error types
#2087
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iravid
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Nov 11, 2019
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Thanks @mlangc! |
Twizty
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Nov 13, 2019
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This PR adapts the signature of
ZIO.someOrFailExceptionto better work with commonly used error types likeThrowable. For example, without this PR,does not compile, but with this PR, it does.
Something that does not yet compile is
(io: IO[E, Option[A]]).someOrFailExceptionifEis not a supertype ofNoSuchElementException, like(io: IO[IllegalArgumentException, Option[A]]).someOrFailException. Ideally, this should work, with the error type of the result being the most specific common supertype ofEandNoSuchElementException, but I didn't yet find a way to achieve this.In any way, this PR is an improvement over the existing state of affairs.