— a lightweight dynamic language for the JVM.

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 Now available: Golo 3.0.0 milestone 2

We are pleased to share the second milestone towards Golo 3.0.0.

Sticking to our roadmap, we will make a new milestone available every 6 weeks.

What’s new?

• Collection comprehensions, inspired by Python.
• The documentation is now generated with AsciiDoctor instead of AsciiDoc.
• Union types now have special methods synthesized from members to facilitate tests.
• The build has been migrated from Maven to Gradle.
• reversed_range has been renamed to reversedRange for consistency reasons.
• The new box(obj) predefined function boxes an object reference into a java.util.concurrent.atomic.AtomicReference. This is useful to inject mutable state into closures.

The highlight of this milestone is clearly the new collection comprehensions contributed by Yannick Loiseau. You can now turn code like:

let l = list[]
foreach x in [1..4] {
  foreach y in ["a", "b", "c"] {
    l: add([x, y])
  }
}

into:

let l = list[ [x, y] foreach x in [1..4] foreach y in ["a", "b", "c"] ]

Links

• Download Golo 3.0.0-incubation-M2
• Read the Golo programming language guide
• Star / fork the project on GitHub
• Get in touch on our mailing-list