Support `using` directives straight from the REPL

Scala CLI version: 0.1.17 Scala version (default): 3.2.0

Using the following script

//> using lib "com.lihaoyi::os-lib:0.7.8"
//> using lib "org.typelevel::cats-effect:3.4.1"
import os._
import cats.implicits._
println("toto")

when running

> scala-cli script.sc                                                                                                                                                                                                                                              
Downloading 3 dependencies
Compiling project (Scala 3.2.0, JVM)
Compiled project (Scala 3.2.0, JVM)
toto

Which is ok.

But when doing the same thing in the REPL it’s like if the using directive was not used.

> scala-cli                    
Welcome to Scala 3.2.0 (11.0.16, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.
                                                                                                                                                                                                                                                                                                                                                       
scala> //> using lib "com.lihaoyi::os-lib:0.7.8"
                                                                                                                                                                                                                                                                                                                                                       
scala> //> using lib "org.typelevel::cats-effect:3.4.1"
                                                                                                                                                                                                                                                                                                                                                       
scala> import os._
-- [E006] Not Found Error: -----------------------------------------------------
1 |import os._
  |       ^^
  |       Not found: os
  |
  | longer explanation available when compiling with `-explain`
1 error found
              

when using --amm I have same issue, except os-lib which is imported by default.

I would have expected the script to the same way in REPL than from a file. So I could try in REPL what is in my script.

[Gedochao]

re-tagging this as a wontfix feature request. it doesn’t seem we’ll be able to support this until Scala REPL/Ammonite REPL add using directive support.

[Gedochao]

Closing this for the time being, since there’s not much to be done about it on our side for now.