kotlinlang #announcements

@udalov i saw an answer to a question you provided on SO and just wanted to get some more information. It's about retaining parameter names on constructors

krissrex

06/05/2017, 9:01 PM

Are there any libraries for integration testing with databases that work well with kotlin? I can't really find anything other than DBunit on google.

scott

06/05/2017, 9:02 PM

I can’t tell you you are talking about inline functions or functionality intrinsic to the language @diesieben07

strelok

06/06/2017, 3:21 AM

is there a way to see (confirm) the kotlinc command line (or exact options) used by the IntelliJ during a build?

maplonki

06/06/2017, 4:55 AM

I’m trying to compare if 2 classes are of the same instance type but i’m getting an error because

this.contentFragment

is nullable, but i can just null check it

var contentFragment: Fragment? = null

fun exec(contentFragment: Fragment) {
  if (contentFragment::class == this.contentFragment?::class) return
}

😱 3

Slackbot

06/06/2017, 8:50 AM

This message was deleted.

Slackbot

06/06/2017, 8:53 AM

This message was deleted.

andyb

06/06/2017, 2:26 PM

@onionsoup probably because static methods are a bit of a code smell in an OO language. They are much better represented by top-level functions in FP and the companion object is merely a way of grouping these functions.

tulio

06/06/2017, 2:31 PM

@andyb Could you explain how would I include the runtime on this 'fat' jar?

chb0kotlin

06/06/2017, 6:09 PM

I am not entirely sure how to use

File.walk

someone got a handy example

squinky

06/07/2017, 3:46 AM

Hello Kotlin gurus! Just finished reading Kotlin in Action and I’m looking to write a legacy-free backend for a largely single page web app. What’s the best Kotlin framework for that kind of thing? I am going to use Postgres for the database. Thanks!!

rattrayalex

06/07/2017, 4:47 PM

I’m curious; how have people liked the

it

feature of Kotlin? Does it cause problems/confusions?

orangy

06/07/2017, 5:24 PM

For real fans 😄 https://plugins.jetbrains.com/plugin/9754-tiobe-index-for-kotlin

🤘 1

:kotlin: 8

😄 2

vaskir

06/07/2017, 6:58 PM

🙂

molikto

06/08/2017, 6:12 AM

Any reason Kotlin doesn't support overriding

plus

and

plusAssign

the same time? This can be handy for mutable data types, like

Vector2

in libGDX

illaz

06/08/2017, 7:35 AM

@akbarsha03 According to https://discuss.kotlinlang.org/t/fall-through-in-when/2540 there is no fallthrough construct yet.

illaz

06/08/2017, 7:37 AM

@vaskir As far as I know Swift has a “fallthrough” keyword 😉

witoldsz

06/08/2017, 2:30 PM

Hello, where can I find how exactly does

with (x) {a() b() c()}

work? Do the

a()

and

b()

execute on the same instance of

, or do the result of

a()

can "update" the

, so the following methods run on what

a()

returned?

forcelain

06/08/2017, 4:52 PM

I have an

Item

Item

has a list of another

Item

. Is there a way to recursively collect all subitems for a given item into a flat list?

snowe

06/08/2017, 4:53 PM

I'm not seeing any methods that would allow me to.

mg6maciej

06/08/2017, 8:37 PM

@fmd Interesting. When would you separate test into blocks instead of simply creating two separate tests?

ilya.gorbunov

06/09/2017, 1:01 AM

@groostav Take a look at this example: https://try.kotlinlang.org/#/UserProjects/q1qp3un899nd41tcall8qmapg5/9kedig2qt02lre65kj8jt9eqan What is different from your code?

🤔 1

Dalinar

06/09/2017, 3:41 AM

so if a nested class is not

inner

then it is static? The docs don't really say anything about that

dominikabee

06/09/2017, 8:29 AM

Hi, we’re organizing an event about kotlin in Cracow (Poland) and we’re looking for speakers to share their experience using Kotlin in projects. What differs this event from others is that it will not be a fully open event, we’re going to invite Senior Developers, CTOs etc. who are interested in using Kotlin in their projects, so we estimate that the number of attendees will not exceed 50. Are you interested in a speaker role or maybe you know somebody that you can recommend? Thanks for your help!

mnawrot

06/09/2017, 11:01 AM

hey, is it possible to add another condition in the same

is

inside

when()

statement? something like :

when(someVariable) {
        is Int or is String {
            \\\something
        } 
    }

nitrog42

06/09/2017, 1:22 PM

hi guys ! interface SAMListener { public void listen(param1: Object, param2: Object) } myclass.setSAMListener { param1, (param2 as Boolean) -> } I’m trying to make param2 autocast to Boolean, but it’s not working... Is there any way to do it in the prototype of the lambda ?

chb0kotlin

06/09/2017, 6:16 PM

private fun hash(f: File): String {
        MessageDigest.getInstance(hashAlgo)?.let {
            FileInputStream(f).let { f ->
                IOUtils.copy(f, DigestOutputStream(NullOutputStream(), it))
                f.close()
            }
            it.digest().map { String.format("%02x",it) }.reduce{String::plus}
        }
        throw RuntimeException("Something went wrong")
    }

Slackbot

06/10/2017, 10:07 AM

This message was deleted.

tvede

06/10/2017, 10:31 AM

Hi Guys, So if i have a type parameter, is there no way to say that it can be “Any” except “Exception” ?

Eugenio

06/10/2017, 12:30 PM

What is the font in the Kotlin logo? Is it available anywhere?

❤️ 2