What is the reason that it’s not possible to provide interface function default implementations for

toString()

and alike? That would be super helpful 🙂

@Alexey Belkov [JB], What are the differences between versions of the libraries that have K*otlin_version* specified and those that do not? Sample in Ktor:

1.3.2-$kotlin_version

vs

1.3.2

. Both work it

I'm still new to Android development and now I'm getting started with Clean Architecture and I'm wondering about some things. First of all I'm using a single activity pattern and am in the process of modularizing my project by features and adding usecases. I've got a couple of questions if anyone's got some time. 1. What's a good level of dividing features? Could one feature have multiple associated fragments? 2. I find myself not creating repositories for most features. Instead I have 3 repos in the app module, because they must be used in multiple places of the project. Is this right or wrong? 3. How would I handle things like someone sending me a message when that logic will only happen once I'm in an assignment together with that person. This would require that I'm somehow notified about the message in multiple fragments. I would need to observe the same data in multiple viewmodels, use an extra activity, or put the livedata observing in the main viewmodel. This would quickly make the mainviewmodel full of stuff it only needs in certain areas of the app. I have a similar requirement for other areas of the app where I need to receive notifications in the form of popups across certain fragments. Thanks.

is there a list type where you can insert into the middle? either before or after a element, or at an index? any of the above?

Are there any plan to improve the experience of the REPL?

Kotlin docs say

i in 1..4

is equivalent of

1 <= i && i <= 4

, but is it really on the bytecode level? Doesn't range expression generate an additional range object?

Do you think the fact that bounded property reference is not lazy is an error? For me it should be, and

lazy { a.makeB() }

should be the same as

lazy(a::makeB)

https://blog.kotlin-academy.com/method-references-and-lambdas-in-lazy-properties-371dbbea857b

Is it bad to call a blocking function from inside a coroutine?

Hey Guys Actually i'm getting a little frustrated learning kotlin please tell something to boost me up!!

Is there a way to pass a generic parameter to a (secondary) constructor? If it was any other method, I would do

fun <T> foo(param: T)

, but with a constructor I can’t just do

<T> constructor(param: T)

There are ways I can get around this limitation, but I’m just curious if it’s possible with slightly different syntax. (also, I don’t want to make the entire class generic to

T

)

Hi there, I'm new in the community 🙂

How do I pass the constructor of a nested class?

class Base() {
    class Nested() {
    }
}

funWithCtor(::Base) // works
funWithCtor(::Base.Nested) // doesn't work
funWithCtor(::Nested) // works if: import Outer.Nested

Hey :) i know there's an option to tell kotlin which bytecode level to produce. Is there anything that also prevents from compiling against jdk stuff from above the specified version? With java, there is the --release flag, which is also nicely supported by gradle 6.6 now. We need to be able to use jdk for example 11, but our application has to run on java 8. Thanks in advance for any hints :)

Hi, I just want to check if I'm in progress of solving something that does not need solving. I want users to be able to run kotlin scripts out of the box (no pre-installation requirements) with (runtime) maven dependency resolution. So I made https://github.com/markaren/kts yesterday. It allows users to download the

kts

executable and then invoke a

.kts

script with maven dependencies. I know of kscript (unix systems) and the official scripting support (needs kotlin installed). My solution requires no prior software installed and works regardless of platform. Is it valuable?

📣 It's

2020-08-13T15:15:00Z

, a good time to announce the first milestone of kotlinx-datetime library, v0.1, has been published https://discuss.kotlinlang.org/t/kotlinx-datetime-0-1-has-been-published/18766

We are starting the 1.4.0 release activities. Please be patient, it will take a bit of time. It will be officially out only after the blog post appears in blog.jetbrains.com/kotlin. In the next couple of days you may see new artifacts appear in various repositories. Since we don’t have full control of all the systems involved, you may temporarily observe an inconsistent state of the 1.4.0 world. Please don’t be alarmed, the blog post will notify you when we reach a consistent state 🙂 Looking forward to your feedback on 1.4.0 when it’s ready. Have a nice Kotlin!

Hi folks, how would you write in kotlin a function that execute a function based on a percentage. Say for example you get a function to be called millions of times, and based on a param (the fixed percentage) you execute it. Something like: FunctionLimiter.execute(function, 10%) //function will be called only 10% of the times

Should my

commonTest

module be able to see

internal

code from

commonMain

? Are they part of the same compile group?

anyone familar with spring boot with kotlin?

Where should I report a problem with experimental API? Specifically for 

@ExperimentalUnsignedTypes

?

Hello. Does anybody know why ktor by default disables okhttp redirects? https://github.com/ktorio/ktor/blob/master/ktor-client/ktor-client-okhttp/jvm/src/io/ktor/client/engine/okhttp/OkHttpConfig.kt#L16 It is strange because okhttp enables redirects by default.

Im struggling a bit with reified generics. I have a class that needs to call a 3rd party inline function. I want a method in my class to be generic and pass the generic type to the inline function but i cannot do this:

class MyClass {
        suspend fun <T> doStuff(): T {
            return myReified<T>()
        }
    }

suspend inline fun <reified T> myReified(): T

What is a good workaround?

Can someone tell me what I am doing wrong? I would like to use contracts to hide the type check, but the smart cast either doesn't work, or something like this happens:

Hi folks, quick question. Why I can’t convert a sequence into a java stream like this

sequence {
   yieldAll(1..100 step 10)
}.asStream()

while in the <http://(https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.streams/kotlin.sequences.-sequence/as-stream.html|doc> it seems it’s possible? Intellij tells me

unresolved reference asStream()

Is there a way to supress warnings for an entire project? The point is to supress "unused" warnings in a library.

Is 1.4 released?

Hi, is there any idea why this doesn't compile?

typealias AndroidUri = android.net.Uri
val builder = AndroidUri.Builder()

==>

Unresolved reference: Builder

This one works as expected:

typealias AndroidUriBuilder = android.net.Uri.Builder
val builder = AndroidUriBuilder()

This message was deleted.

since enums can't have variables/properties (can they?) is seal classes how people generally simulate union types?