[SOLVED] Import / include / using objects from another source file into a Scala script file

Import / include / using objects from another source file into a Scala script file

I have a MyScript.scala file:

//> using scala "3"

object MyUtils {
  def sayHello() = println("Hello")
}

@main
def main(): Unit =
  MyUtils.sayHello();

I successfully run it like this:

> scala MyScript.scala

Compiling project (Scala 3.6.4, JVM (17))
Compiled project (Scala 3.6.4, JVM (17))
Hello

Question: What do I need to do to move my MyUtils object into another source file (e.g., MyUtils.scala or MyUtils.sc) and still call the sayHello method from within MyScript.scala?

Solution

With the Scala CLI, you can use the using file directive.

For instance, in the main file:

//> using scala "3"
//> using file Utils.scala

@main
def main(): Unit = {
  MyUtils.sayHello()
}

And the imported file Utils.scala:

object MyUtils {  
  def sayHello() = println("Hello")
}

Reference : https://scala-cli.virtuslab.org/docs/guides/scripting/scripts#define-source-files-in-using-directives