doc: make TypeTest example compiling #23009

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road21 wants to merge 1 commit into scala:main from road21:fix-doc-typetest-compile

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road21 commented Apr 16, 2025

Current example is not compiling:

import scala.reflect.{ClassTag, TypeTest}

val tt: TypeTest[Any, String] =
  new TypeTest[Any, String]:
    def unapply(s: Any): Option[s.type & String] = s match
      case s: String => Some(s) // compiler error Found: (s : String) Required: (s² : Any) & String
      case _ => None

https://scastie.scala-lang.org/road21/jq3j9XsUTdeshqbHxDXv3w


          [doc]: make TypeTest example compiling

8a826ec

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