I would like to give kudos to the JetBrains team to the amazing work on the Kotlin Documentation website: https://kotlinlang.org/docs 💪 Now, one of my hobbies is to read this amazing documentation and sharp my knowledge on Kotlin world 😊

Does anyone here use stacked pull requests? What’s been your experience? Worth the hassle?

does anyone know how i can detect the cpu architecture in kotlin/jvm? i don’t want the jvm architecture, i want to detect arm even when i run on an intel jvm via rosetta.

Does anyone know where I might find some Compose or Android merch, in Australia?

Out of curiosity, what naming conventions do you use for files containing only a function? Eg. I have a file that is basically a factory function declared as extension function of some domain object:

data class MyDomainObject(val message: String)

//some adapter package
data class MyResponse(val localizedMessage: String)

fun MyDomainObject.toMyResponse(locale: Locale) : MyResponse {
    /*    imagine a lot of mapping here, calling other pure functions in the same file     */
    
    return MyResponse(this.message + locale.toString())
}

It’s a complex object, so placing the extension function inside the

MyResponse

file would hinder readability. I couldn’t really find anything regarding that in the kotlin docs. What’s your take on it? I would love to hear different opinions!

JetBrains any channel here regarding Fleet updates?

Hi all, I would like to improve this by removing mutable vars here, but I’m kind of struggling with finding a way to do so. Any ideas?

open class A {
    open fun somFun(lambda: (suspend A.() -> Unit)? = null) = apply { /* ... */ } 
}

class B : A()

class C {
    /**
     * Type mismatch.
     *  Required: B
     *  Found: A
     */
    val b: B = B().somFun { }
}

Is there a way to return B instead of A in

B().somFun { }

without using a static function like below?

open class A {
    companion object {
        fun <T : A> T.somFun(lambda: (suspend T.() -> Unit)? = null) = apply { /* ... */ }
    }
}

Like, is there a way to have <out A> in a lambda?

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I found that in Java, I can use a Kotlin internal class from a Gradle dependency. Is it expected behavior?

Random question: anyone know any good frameworks for doing Minecraft modding with Kotlin?

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Oof: https://twitter.com/pablisc0/status/1512387114398322688

I have this kind of implementation but it’s not allowed after bumping Kotlin to 1.6.10 and received the following error which was warning until previous version. Code:

sealed class PowerTool(
    @JvmField open val name: String,
    @JvmField open val price: Double
) {
    data class CircularSaw(
        val diameter: Int,
        val cordless: Boolean,
        override val name: String,
        override val price: Double
    ) : PowerTool(name, price)

    data class DrillPress(
        val rpm: Int,
        override val name: String,
        override val price: Double
    ) : PowerTool(name, price)
}

Error: JvmField can only be applied to final property

My requirement for jvm field is: I need @JvmField for java consumers as I don’t want to refactor the code to use the setter/getter method and want to use as a field. Any thoughts?

Ask who constantly uses both JetBrains IDE and VSCode: what key map do you use? Do you use a JB key map on VSCode or VSCode key map on JB? Or do you use a specific key map like Vim on both? Or do you just use the default key map and get used to switching key map mindset between them?

Today I learned that a public inline function can't call a private inline function, and it's driving me mad.

inline fun foo() = bar() // does not compile
private inline fun bar() {}

GitHub Copilot taught me derivative.

Hey here. Anyone with a good pointer for how to model json objects(api response) with a lot of fields that you do not need, in Android? The api is returning a lot of fields and there is no way to exclude those fields at the api level. Any ideas?

am I the only one thinks that context receivers is not a good idea (makes the code harder to follow) ? Is there anywhere to vote against it?

Does anyone have any good, solid code examples where you'd use a context receiver over an extension function?

I know it's just a preview, but this just looks horribly messy and hard to understand:

hello folks. How is the adoption of Kotlin in cryptocurrency universe?

🎊 I just want to give a big shout out to @ephemient 🎊 You are, so often, bringing solid and quick answers to even the most esoteric questions. Thanks for being a pillar of the community with god-like knowledge of Kotlin and JVM engineering! Your employer must be lucky 👍

Question from a colleague: was "koroutines" ever considered as a name for Kotlin coroutines? 😄

Spotted another Kotlin logo today 🤣 :

For you android app developers. How does you version and automate app deployments? Essentially I'm facing some analysis paralysis: 1. Manually tag a release as new version 1.0.1, then the same dev presses a button to kickoff CI look for the last tag. and create a build. send it to firebase app distrubition. or 2. have a CI job that a dev invokes, and it adds a tag itself and then creates a build to shipoff to firebase app dist. I guess I'm getting caught up on what is the "operation" that signifies a new release of the app. and of course it would be super nice to have it automated. which is why optino 1 kinda feels "wrong" because the user has to manually tag and bump versions. but maybe thats just a fact of life. the con of option 2 is that the CI creates a build and will also make the PR for the version bumps, but it technically happens after the release is sent. idk. We have option 2 implemented. and its nice. but i think option 1 is actually better?

How would you call a call that succeeded but with a warning, in one word?

Random naming help. I have an android app. I need something that holds the overall app state. (i.e. Am I logged in, among other state) I'm torn between AppState and AppStateHolder. My coworker is vouching for AppManagerService. Thoughts?

Ever wandered if you could write Kotlin in a language other than english? I had some fun implementing foobar in esperanto https://pl.kotl.in/QxkY19BZV