libraryDependencies ++= Seq(
  "com.github.japgolly.scala-graal"  %% "core"           % "2.0.0"
  "com.github.japgolly.scala-graal" %%% "core-js"        % "2.0.0"
  "com.github.japgolly.scala-graal" %%% "ext-boopickle"  % "2.0.0"
  "com.github.japgolly.scala-graal"  %% "ext-prometheus" % "2.0.0"
)

import japgolly.scalagraal._

// Use semantics and implicit config for JS
// (GraalVM also supports Python, R, Ruby, LLVM)
import japgolly.scalagraal.js._
import GraalJs._

// 1. Pre-compile expression functions for fast invocation.
// 2. Typeclasses translate and/or marshall data between JVM and JS.
val expr: (Int, Int) => Expr[String] =
  Expr.apply2((a, b) => s"($a + $b) * 2 + '!'").compile(_.asString)

// Use a basic synchronous JS environment
val ctx = GraalContext()

val result = ctx.eval(expr(3, 8))
assert(result == Right("22!"))