scalaz中的hoistEither等于什么？
[英]What's the equivalent of hoistEither in scalaz?
问题描述
What's the equivalent of hoistEither :: Monad m => Either ea -> EitherT ema ? 
hoistEither :: Monad m => Either ea -> EitherT ema什么？
I have an \\/[E, A] and I'd like to get a EitherT[M[_],E,A] 我有一个\\/[E, A] ，我想得到一个EitherT[M[_],E,A]
1 个解决方案
解决方案1
2 已采纳 2015-12-22 18:30:00
You can use EitherT#fromDisjunction . 您可以使用EitherT#fromDisjunction 。
- https://github.com/scalaz/scalaz/blob/v7.2.0/core/src/main/scala/scalaz/EitherT.scala#L212-L217 https://github.com/scalaz/scalaz/blob/v7.2.0/core/src/main/scala/scalaz/EitherT.scala#L212-L217
- https://github.com/scalaz/scalaz/blob/v7.2.0/tests/src/test/scala/scalaz/EitherTTest.scala#L44 https://github.com/scalaz/scalaz/blob/v7.2.0/tests/src/test/scala/scalaz/EitherTTest.scala#L44
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