like

someList[:]

in Python

My approach so far was : 1. Create an equivalent java class (fields declaration should be enough) , 2. Generate equals hashcode , 3. Transform to kotlin file

@Paul Woitaschek Helper methods to generate these for you would require reflection, and

equals()

and

hashCode()

are not methods where you want to do that. Guava has some helper methods, though: https://gist.github.com/rocketraman/1399080/a50ea2206f6ea4bda65ef00d1f54aab6d654d3bd

@mg6maciej only if you put

let

and

when

on different lines which there's no reason to do

only beef after reading through it is claiming coroutines could support actors is a little absurd..

Hey gents, I was hoping to replace @cedric's JCommander command-line parser with something a little bit more kotlin friendly. After a couple of weekends I came up with `getoptk`: https://github.com/EmpowerOperations/getoptk. I'm using it on a couple of personal projects but I dont have particularly complex requirements for a command line parser. I would very much appreciate any thoughts or feedback,

@groostav

TBD: link to sonatype/maven central

Build with Kobalt and upload to JCenter in just two lines in your build file 😄

does anyone know if there is a way to dynamically generate functions or extension functions in Kotlin?

hi all , IDEA question , I can’t seem to have IDEA show Method Separators for Kotlin code ? Is this a known issue ? some way of forcing it ? thanks

Is it possible to define a type with typealias which implements multiple interfaces? something like typalias Person = CanBeNice & CanBeMean

Trying to find a better pattern. Have some code like this:

var s : String? = null
exec {
    s = createS()
}
s!!.doSomething()

the

exec

block is executed synchronously so

s

will be assigned to a non-null value, but the type system doesn’t know this hence the

!!

.

createS()

can only be called within the

exec

block. Obviously the

!!

is ugly, I’m trying to figure out whether there is a better way to get

s

“out” of the inner code block. I could modify

exec

such that it will return whatever is returned by the code block, but what if I need to get multiple variables out of the code block?

Hello there. Is there a protobuf generator for Kotlin. I'm currently using the generated Java classes.

I just found something in Haskell 😱 https://github.com/adelnizamutdinov/kotlin-protobuf by @adeln

And what, it can then run in something like nodejs?

java.util.function.Function

has an

apply

method. How can I tell the kotlin compiler to call the

apply

method and not the extension function?

All our builds have a few warnings "parameter

blah blah

is never used." Is there a way to silence that specific Kotlin warning for my entire team? We're using gradle to build.

Hi, I'm trying to convince my manager to start using Kotlin at my company. Does anyone have any up-to-date stats on who's using Kotlin? or lines of code on github? Or anything similar.

That a known issue?

has anybody used Bazel + Kotlin? even first impressions could save me some time 🙂

I'd just prefer looking at a block that tells me everything in here is an extension for Int

I used to have a big extensions file, but I refactored and now I have 3 equally big ones

Companion is a singleton. Static methods are visible through subclasses, companion objects’ methods are not. Static methods are procedural, companions are object-oriented.

I don't like code like this in `RecyclerView`'s

Adapter

tho. Prefer to have each case as a class.

Interesting question. I have a couple of places in my code where I could do that. Let me check on living organism.

looks like I'm encountering this. http://stackoverflow.com/questions/35272761/how-to-compare-two-arrays-in-kotlin/35275418#35275418

Is there an alternative to delegated properties for observing changes to all properties on a class? Even a hacky reflection-driven way would be fine... Right now, I'm having to add the delegate to every single property and it's easy to miss one (especially in subclasses)

@kevinrob, yes, there is a kotlin compiler daemon that is used for compilation by default. You can set a system prop

kotlin.compiler.execution.strategy

to

in-process

to disable it. (The prop should be visible by kotlin gradle plugin, so I guess you can do it via

GRADLE_OPTS

env var, but it depends on the gradle execution settings.) But it would be nice to understand the problem first, so could you please first set the prop

-Dkotlin.daemon.verbose

and rerun the gradle build with

--debug

, and then send us the relevant part of the log/output (that would be last several hundreds lines starting from the failing module compilation). We’ll appreciate that a lot. // cc: @alexey.tsvetkov

@ilya.chernikov here you are! With this log I think that it is linked to low memory? 😕

This won't be a problem for me, since I'm not going to be using Java at all (why use Java when you have Kotlin), but I'd like to make things​easier for others who may use my library

@ilya.chernikov Is that compiler daemon used when I invoke

kotlinc

directrly (or

K2JVMCompiler

) or is that daemon only usable from Gradle?