paddymahoney / scala-native

Your favourite language gets closer to bare metal.

Scala Native

Scala Native is a new ahead-of-time compiler and lightweight managed runtime designed specifically for Scala. Project is currently in pre-release stage. Follow us on twitter to be first to know about upcoming updates.

Features

• Low-level primitives.

  @struct class Vec(
    val x: Double,
    val y: Double,
    val z: Double
  )
  
  val vec = stackalloc[Vec] // pointer to stack allocation
  !vec = new Vec(1, 2, 3)   // store value to stack
  length(vec)               // pass by reference

  Pointers, structs, you name it. Low-level primitives let you hand-tune your application to make it work exactly as you want it to. You're in control.

• Extern objects.

  @extern object stdlib {
    def malloc(size: CSize): Ptr[_] = extern
  }
  
  val ptr = stdlib.malloc(32)

  Calling C code has never been easier. With the help of extern objects you can seamlessly call native code without any runtime overhead.

• Instant startup.

  > time hello-native
  hello, native!
  
  real    0m0.005s
  user    0m0.002s
  sys     0m0.002s
  

  Scala Native is compiled ahead-of-time via LLVM. This means that there is no sluggish warm-up phase that's common for just-in-time compilers. Your code is immediately fast and ready for action.

Documentation

• Contributing guidelines.

License

Scala Native is distributed under the Scala license.