Comments (6)
dispalt
commented on June 4, 2024
1
I forgot to mention but it works when its within another object, another reason why it was so annoying to figure it out. If you move one of those traits with two annotations to the top level of the file, it won't work, IIRC.
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joroKr21
commented on June 4, 2024
Ha, interesting. I guess the two annotations are competing on adding the companion object
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dispalt
commented on June 4, 2024
yup ran into this a bunch before, real annoying could never figure out a workaround.
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joroKr21
commented on June 4, 2024
But the tests are full of such algebras with two annotations and no companion objects:
https://github.com/typelevel/cats-tagless/blob/master/tests/src/test/scala/cats/tagless/tests/autoFunctorKTests.scala
Could it be something related to incremental compilation?
Can you try to clean and compile again?
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danslapman
commented on June 4, 2024
Good old bug: scalameta/scalameta#1046, this is to be fixed in scalac (paradise was merged in 2.13)
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joroKr21
commented on June 4, 2024
Would this fix the problem? scala/scala#9555
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