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Introduced Suspendable type class #710

Merged
merged 3 commits into from
Aug 16, 2016
Merged

Introduced Suspendable type class #710

merged 3 commits into from
Aug 16, 2016

Commits on Aug 16, 2016

  1. Introduced Suspendable type class 

    This PR moves `suspend` and `delay` from the `Effect` type class to a
new `Suspendable` type class. There are two motivations for doing this:

 - Exposing `unsafeRunAsync` to any function that requires `suspend`
   or `delay` gives up a lot of parametricity.

 - Some type constructors have `Suspendable` instances but do not
   support value extraction. This came up in the [port of Doobie to
   FS2](typelevel/doobie#323 (comment)).

This [came up on Gitter a while back as
well](http://www.gitterforum.com/discussion/scalaz-scalaz-stream?page=143).
    @mpilquist
    mpilquist committed Aug 16, 2016
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  2. Fixed typo in guide

    @mpilquist
    mpilquist committed Aug 16, 2016
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  3. Minor ScalaDoc changes to Suspendable

    @mpilquist
    mpilquist committed Aug 16, 2016
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