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Null typeclass for Param in automatic derivation #402
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wsargent
changed the title
Null typeclass for Param in semi-automatic derivation
Null typeclass for Param in automatic derivation
May 30, 2022
I've put together an isolated test case https://github.com/wsargent/magnolia-issue-402 |
It looks like a simple workaround is to define generated implicits using |
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I have a failing spec in my project that is coming from a null typeclass, and I suspect this is a bug in Magnolia
Here's the code for it:
The PR at tersesystems/echopraxia-plusscala#1 (comment)
This is taken directly from https://github.com/softwaremill/magnolia/blob/scala2/examples/src/main/scala/magnolia1/examples/print.scala#L22 so I don't think this should be possible.
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