Monthly Archives: April 2015

Anko 0.6 is Released

Posted on April 30, 2015 by Andrey Breslav

Today we are glad to present the new version of Anko — a library which facilitates Android application development. We are happy to have received lots of feedback, and some of the changes in 0.6 were actually proposed by the … Continue reading →

Posted in Android | 15 Comments

Try Kotlin in Your Browser: New Look and More Features

Posted on April 16, 2015 by Andrey Breslav

We released Kotlin Web Demo quite a while ago, it did a good job helping people try Kotlin right in the browser and share runnable code with each other. Now, a shiny new version is ready, it’s time to retire … Continue reading →

Posted in Tools | 16 Comments

Upcoming Change: More Null-safety for Java

Posted on April 10, 2015 by Andrey Breslav

Our battle for combining null-safety and Java interop has been a long one already: we started off treating all Java reference types as nullable, and it was too inconvenient; then we employed external annotations to specify nullability, created KAnnotator, but … Continue reading →

Posted in Language design | Comments Off

Upcoming Change: Function Types Reform

Posted on April 9, 2015 by Andrey Breslav

Kotlin M12 will likely bring another change that is crucial for implementing a useful reflection library for Kotlin. In short, we are going to unify FunctionX and ExtensionFunctionX to be represented in the same way at runtime, but it will … Continue reading →

Posted in Language design | 11 Comments

Announcing Anko for Android

Posted on April 8, 2015 by Hadi Hariri

We’re excited to announce a library we’ve been working on for Android development, which, among other things allows the creation of Application Interfaces in a type-safe and dynamic way using a DSL. A Sample Taste Here is a small example … Continue reading →

Posted in Android | 53 Comments

More changes: Enum Syntax, Another Deprecation and More

Posted on April 7, 2015 by Andrey Breslav

Enum Syntax Currently the syntax for enums with non-trivial constructors is kind of monstrous:

enum class Message(val str: String) {
    ERROR : Message("This is an error")
    WARNING : Message("This is a friendly warning")
    DEBUG : Message("Ignore this")
}

enum class Message(val str: String) {

ERROR : Message("This is an error")

WARNING : Message("This is a friendly warning")

DEBUG : Message("Ignore this")

}

Posted in Language design | 59 Comments

More Deprecations Coming

Posted on April 6, 2015 by Andrey Breslav

There are two more items on the language cleanup list: backing-field syntax and static type assertion operator.

Posted in Language design | 19 Comments

Upcoming Change: Syntax For Annotations

Posted on April 3, 2015 by Andrey Breslav

Kotlin’s syntax for annotations was inspired by C#, which surrounds them with square brackets:

[Inject]
fun setFoo(foo: Foo) { ... }

[Inject]

fun setFoo(foo: Foo) { ... }

But brackets are precious for a language designer, and we would really like to use them later for something else, so we are considering changing … Continue reading →

Posted in Language design | 29 Comments

Upcoming Feature Deprecations

Posted on April 2, 2015 by Andrey Breslav

As we are finalizing the language design, many things have to be cleaned up, and among these are features that were initially designed and (often partly) implemented, but turned out not to be worth the trouble supporting them. In the … Continue reading →

Posted in Language design | 18 Comments