gneuvill
gneuvill
/ cats-mtl.scala
Created
May 23, 2017 18:26
— forked from aaronlevin/cats-mtl.scala
Does the cats-mtl design support for-comprehensions with multiple Monad constraints? Looks like it does!
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| package cats | |
| import cats.data.{StateT, WriterT} | |
| import cats.implicits._ | |
| /** | |
| * TypeLevel is working on some alternative encodings of the Monad Transformer | |
| * Library (MTL). The existing solution in cats was broken for a few reasons. | |
| * One annoying issue made it imposisible to use for-comprehension with more | |
| * than one Monad$FOO constraint owing to implicit resolution ambiguities. |