Logging

logging.scala

trait Logger {
  def log(msg: String)(implicit logType: String) = {
    println(s"${logType}: ${msg}")
  }
}

object DefaultLogger extends Logger

class SomeClass {
  implicit val logType = "SomeClass"
  DefaultLogger log "Creating SomeClass"
}

object Main extends App {
  val s = new SomeClass
}

logging.swift

protocol Logger {
    func log(msg: String, logType: String)
}

extension Logger {
    func log(msg: String, logType: String) {
        print("\(logType): \(msg)")
    }
}

struct DefaultLogger: Logger {
    
}

class SomeClass {
    let logType = "SomeClass"
    
    init() {
        defLogger.log("Creating SomeClass", logType: "SomeClass")
    }
}

var defLogger = DefaultLogger()

let a = SomeClass()