kotlinlang #announcements

Hi! Does anyone know about any good kotlin conferences coming up in the spring? Kotlinconf was in the fall so I’m guessing that will be the case again so my team are looking for alternatives. I’m guessing there’s a few jetbrains people here so you might now which CFP’s you’ve submitted to? 🙂

user

01/18/2019, 2:25 PM

https://twitter.com/kotlin/status/1086268421619146753 New in Kotlin 1.3: Use the Trace Current Stream Chain button on a sequence chained call in the debugger to visually inspect the contents of the sequence at each step of evaluation. https://t.co/gA2G8LU0dr Twitter

https://pbs.twimg.com/media/DxMzXAsXgAEqtxL.jpg▾

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domfox

01/18/2019, 2:50 PM

What could possibly be responsible for a

NullPointerException

thrown from

Class<*>.desc

ReflectClassUtilKt

Copy code

java.lang.NullPointerException
    at kotlin.reflect.jvm.internal.structure.ReflectClassUtilKt.getDesc(reflectClassUtil.kt:74) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.JvmFunctionSignature$JavaConstructor$asString$1.invoke(RuntimeTypeMapper.kt:79) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.JvmFunctionSignature$JavaConstructor$asString$1.invoke(RuntimeTypeMapper.kt:77) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.text.StringsKt__StringBuilderKt.appendElement(StringBuilder.kt:58) ~[kotlin-stdlib-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.collections.ArraysKt___ArraysKt.joinTo(_Arrays.kt:12993) ~[kotlin-stdlib-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.collections.ArraysKt___ArraysKt.joinToString(_Arrays.kt:13210) ~[kotlin-stdlib-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.collections.ArraysKt___ArraysKt.joinToString$default(_Arrays.kt:13209) ~[kotlin-stdlib-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.JvmFunctionSignature$JavaConstructor.asString(RuntimeTypeMapper.kt:79) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.KFunctionImpl.<init>(KFunctionImpl.kt:47) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.KClassImpl$Data$constructors$2.invoke(KClassImpl.kt:92) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.KClassImpl$Data$constructors$2.invoke(KClassImpl.kt:44) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.ReflectProperties$LazySoftVal.invoke(ReflectProperties.java:92) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.ReflectProperties$Val.getValue(ReflectProperties.java:31) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.KClassImpl$Data.getConstructors(KClassImpl.kt) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]
    at kotlin.reflect.jvm.internal.KClassImpl.getConstructors(KClassImpl.kt:224) ~[kotlin-reflect-1.2.71.jar:1.2.71-release-64 (1.2.71)]

03/25/2020, 5:59 PM

hey there, I know it's more intellij than kotlin related but I don't know where else to ask. Is there a simple way to refactor a custom accessor like

val items get() = _items

into a proper method like

fun getItems() = _items

👍 1

Animesh Sahu

03/26/2020, 2:36 PM

Is there any sdk available for JVM for fingerprint scanning in newcoming modern laptops? I heard of windows 10 home but i never saw that it gives api, so is there any native library or wrapper for which fingerprint functionality could be invoked and fingerprint captured?

Sandy

03/26/2020, 9:24 PM

Copy code

while (startTime < 6000) {
                Timer().schedule(object : TimerTask() {
                    override fun run() : AdyenKycOnboardingResponse {
                        val cmd = paypal.getOnboardingUrl(requestHeaderMap(), request)
                        val paypalKycResponse = cmd.execute()
                        return PaypalKycOnboardingResponse(
                            redirectUrl = paypalKycResponse.redirectUrl
                        )
                    }
                }, 2000)
                startTime += 2000
            }

Sandy

03/26/2020, 9:25 PM

How can i return from timer function the PaypalKYconboardingResponse??

user

03/27/2020, 12:18 PM

https://twitter.com/kotlin/status/1243512745070379008 This thread covers the scope functions 'with', 'run', 'let', 'apply', and 'also' which add a context object to the subsequent scope. #KotlinTips https://t.co/QSYQjDZZjd Twitter

yawkat

03/28/2020, 8:48 AM

Is there a way to accept inline types as non-inlined lambda parameters without the additional box operation?

spand

03/28/2020, 1:40 PM

Anyone know if its possible to get a sound or something when a run configuration completes ?

💯 1

🤔 2

Enock Kalya

03/30/2020, 5:27 AM

Hello everyone, I'm glad to be here

hhariri

03/30/2020, 8:32 AM

Folks - as a general reminder (as we get quite a lot of requests). The sole purpose of this Slack is for Kotlin. Using it to share channels with other organisations or as a work instance, is not permitted and all requests will be rejected.

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iseki

03/30/2020, 4:51 PM

Hello, are there a list of compiler plugin extension point? Such as, if I want to add a member function. Which extension need I register?

Holger Steinhauer [Mod]

03/30/2020, 8:19 PM

Spread the word, join us and don’t hold back with feedback and ideas!

iseki

03/31/2020, 12:37 AM

(KAPT can't modify the AST tree(and only available for JVM backend). And the Compiler Plugins has no documents...

itnoles

03/31/2020, 4:49 AM

readonly

iseki

03/31/2020, 4:50 AM

So, are there any decorators means immutable?

iseki

03/31/2020, 4:50 AM

Instead of const... It need compile time looks.

itnoles

03/31/2020, 4:51 AM

there is const val too 🙂

iseki

03/31/2020, 4:51 AM

😥

iseki

03/31/2020, 4:51 AM

Looks

const val

only support simple type?

itnoles

03/31/2020, 4:51 AM

https://kotlinlang.org/docs/reference/properties.html#compile-time-constants

iseki

03/31/2020, 4:52 AM

Yes, it's my problem...

iseki

03/31/2020, 4:52 AM

Is there a decorator means runtime immutable variable?🤔

Michael de Kaste

03/31/2020, 9:56 AM

Can people please refrain from cluttering the channel with conversations that should be threadspecific? Thanks

🧵 4

👍 1

halirutan

03/31/2020, 10:13 AM

Can people please refrain from cluttering the channel with conversations that should be threadspecific? Thanks Posted in #general

hhariri

03/31/2020, 10:24 AM

<!here> I’m very sorry that I have to resort to a “here” notification for 28K people, but I’m asking once again - please do not use this Slack as means to share channels with other organisations or as a replacement for your usual work Slack instance. This Slack is exclusively for use by the Kotlin community for Kotlin. You can create public and private channels for Kotlin usage, and we’re not restricting that, but please try and abide by the very simple guidelines that we have. Thank you.

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K 42

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metal 4

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dps910

03/31/2020, 9:44 PM

hello

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