Build Stuff'16 Lithuania

Kotlin is a fairly easy language to grasp given its similarity with other mainstream ones such as Java, C# and JavaScript. However, Kotlin provides a few characteristics which makes it possible to write nice DSL’s. But the question is, do we always need full-blown domain specific languages in our applications? Are we really going to write all our business rules in a specific language?

Not necessarily, but that doesn’t mean we should discard DSL’s. In fact, DSL’s are really powerful when they are small and focused. In this talk we’re going to show a few DSL’s that we can create to deal with different aspects of our application, whether it’s business dealing with tax rules or infrastructure and working with transactions, and see how with very little effort we can create more concise, maintainable and readable code.

Have you ever wondered where your favorite feature came from? Was it influenced by a feature in another language? How are the different programming languages even related? I spent a couple months researching the history of some programming languages, and wanted to share that with you. In this talk, I cover the history of the ML family from approximately the dawn of time, eventually focusing on F# specifically.

Let's face it - concurrency is hard. Deadlocks, race conditions - these make your head hurt quite often, and trying to debug those issues only adds up more pain. Why don't we try to avoid those and still have our programs run concurrently? But can we do that? YES! Meet Pony. Pony is an object-oriented, capabilities-secure programming language with an actor model implementation at its core - here "actor" is a keyword! Pony is fun because it fixes most issues of concurrent programming. In the world of Pony it's the compiler that tells you whether your program is safe to execute. It's also type-safe, has no runtime exceptions and you can even use lambdas! I'll show you some examples of Pony programs, how its type system works and how capabilities render your concurrency safe.