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EindbaasExpress / handsonscala-issuemigrator

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"match may not be exhaustive" in macroRW for case class #111

Open EindbaasExpress opened 2 years ago

EindbaasExpress commented 2 years ago

Hello, I was hoping to use sbt-tpolecat in a project of mine that depends on upickle, but it seems that macroRW is causing this compiler warning, so I can't make warnings fatal.

Minimized example: https://scastie.scala-lang.org/Pk7pFpgzT16Nccuyb7JKCA

import upickle.default._
case class Foo(num: Int)
val rw: ReadWriter[Foo] = macroRW

build.sbt

scalaVersion := "2.13.5"
scalacOptions ++= Seq("-Xlint",  "-Xfatal-warnings")
libraryDependencies += "com.lihaoyi" %% "upickle" % "1.3.8"

Result:

match may not be exhaustive. It would fail on the following input: (x: Int forSome x not in 0) ID: 345 Original Author: raquo