scala3 feature examples - trait parameters / published by https://github.com/dacr/code-examples-manager #9ddc2563-f5a4-461f-b137-8d57c3be914a/428285e9dc84436a0f5c05846dfa7bf7a001cebc

scala3-feature-trait-parameters.scala

// summary : scala3 feature examples - trait parameters
// keywords : scala3, tutorial, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : 9ddc2563-f5a4-461f-b137-8d57c3be914a
// created-on : 2021-11-17T18:46:03+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

//> using scala "3.1.1"

// -----------------------------------------------------

trait HelloTrait1(name:String):
  def message = s"Hello $name"

case class Hello1() extends HelloTrait1("joe")

// -----------------------------------------------------

trait HelloTrait2(val name:String):
  def message = s"Hello $name"

case class Hello2() extends HelloTrait2("paul")

// -----------------------------------------------------

@main def go():Unit =
  println(Hello1().message)
  println(Hello2().message + Hello2().name)