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ZIO Core: Add Named Aliases for ZLayer Operators #3116

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Merged
merged 2 commits into from
Mar 12, 2020
Merged

ZIO Core: Add Named Aliases for ZLayer Operators #3116

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da7c273
add named aliases
adamgfraser Mar 12, 2020
fe62dd8
rename
adamgfraser Mar 12, 2020
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14 changes: 14 additions & 0 deletions core/shared/src/main/scala/zio/ZLayer.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,12 @@ final class ZLayer[-RIn, +E, +ROut] private (
}
)

/**
* A named alias for `>>>`.
*/
def to[E1 >: E, ROut2](that: ZLayer[ROut, E1, ROut2]): ZLayer[RIn, E1, ROut2] =
self >>> that

/**
* Converts a layer that requires no services into a managed runtime, which
* can be used to execute effects.
Expand Down Expand Up @@ -2034,6 +2040,14 @@ object ZLayer {
): ZLayer[RIn with RIn2, E1, ROut with ROut2] =
self.zipWithPar(that)(_.unionAll[ROut2](_))

/**
* A named alias for `++`.
*/
def and[E1 >: E, RIn2, ROut1 >: ROut, ROut2 <: Has[_]](
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Not to delay further but I'm not sure they are alphabetized. I'll approve though!

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I think they are but and just appears far down in the file because it is in the syntax class that provides evidence that the output type is a subtype of Has[_].

that: ZLayer[RIn2, E1, ROut2]
)(implicit tagged: Tagged[ROut2]): ZLayer[RIn with RIn2, E1, ROut1 with ROut2] =
self ++ that

/**
* Updates one of the services output by this layer.
*/
Expand Down