warn "dead code following this construct" when using * or any

I’m not sure if thats due to my config but whenever I try to use any or * without specyfing type parameters I get

[error] Foo.scala: dead code following this construct
[error]       foo.bar(*).shouldReturn(List())
[error]               ^

This happens because compiler infers it to Nothing. I’m not sure if it can be fixed though…

Workaround for now is to add the following to build.sbt

scalacOptions in Test -= "-Ywarn-dead-code",

[bbonanno]

@LeonardMeyer if you specify the type to the Any matcher (or add -Ywarn-dead-code just for the test code) that problem goes away. Scalac doesn’t have type inference on parameters, so I’m afraid there is no way to solve this. My preferred choice is to disable that warning for test code as I prefer the clean API without the types for the any matchers, but if you don’t mind that you can add said types and problem solved.

[dormelamed]

For me, It wasn’t enough to add the Test / scalacOptions -= "-Ywarn-dead-code" at the build.sbt file. If you have the same problem and you are using IntelliJ. Go to sbt -> auto-reload settings -> compiler -> scala compiler -> additional compiler options. And delete the “-Ywarn-dead-code” from there.