KEEP
kotlin-multiplatform-bignum
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KEEP | kotlin-multiplatform-bignum | |
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46 | 1 | |
2,899 | 226 | |
2.9% | - | |
5.8 | 6.0 | |
12 days ago | about 1 month ago | |
Markdown | Kotlin | |
- | Apache License 2.0 |
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KEEP
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Making Lenses Practical in Java
Lenses work today. And I think the value class feature will be awesome.
https://github.com/Kotlin/KEEP/blob/master/notes/value-class...
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Adding Coeffect System to Java with Project Loom
Seems like Kotlin Context Receivers then (https://github.com/Kotlin/KEEP/blob/master/proposals/context-receivers.md).
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Rust: A Critical Retrospective
Kotlin has value classes. Here's a good overview of how they work in Kotlin: https://github.com/Kotlin/KEEP/blob/master/notes/value-class...
That document is a few years old now and was intended as a design document. But Value classes shipped with Kotlin 1.5. Apparently they are compatible with the project Valhalla value objects that will be added to the JVM at some point. So, this stuff is coming.
I had to look it up because even though I write Kotlin a lot, value classes are not something I have used at all. Looks useful but not that big of a deal and doesn't really solve a problem I have. Data classes and records (in Java) are a bigger deal IMHO.
In practice, the way you deal with immutability in Kotlin is to keep most of your data structures immutable by default unless they need to be mutable. E.g. there's a List and a MutableList interface. Most lists are immutable unless you create a MutableList. Same with val vs. var variables. Val variables can't be reassigned and you kind of use var only by exception when you really have to. The compiler will actually warn you if you do it without good reason. A data class with only vals can't be modified. Java is a bit more sloppy when it comes to mutability semantics. It has records now but all the fields have setters by default. It has var but no val assignments (you can use final to force this but few people do). And so on.
Semantically this is not as strong as what Rust does of course but it's good enough to make e.g. concurrency a lot easier. Mostly, if you avoid having a lot of mutable shared state, that becomes a lot easier.
You could imagine a Kotlin like language with much stronger semantics implementing borrow checking instead of garbage collection. It wouldn't be the same language of course but I don't think it needs to be very different. Using it would not be a massively different.
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Java record pattern matching in JDK 19
I'd be very interested in a comparison between scala 3 using/given and Kotlin new context receivers https://github.com/Kotlin/KEEP/blob/master/proposals/context...
- Why no one recommends the use of the standard library's Result class but a custom sealed class approach?
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[Question][Kotlin] Dexter Runtime Permissions development has stopped, whats the alternative?
This will be furthermore simplified with multiple receivers coming very soon
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Java 20 looks like it may be one of the biggest updates in years
Tfw no pattern matching. :(
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JSpecify: Express specifications (initially, just nullness properties) in a machine-readable way
I'm aware that kotlin decided against this in kotlin itself, see https://github.com/Kotlin/KEEP/issues/82.
- State of Valhalla
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I really enjoy the "scope" pattern that Kotlin uses. Where to learn more?
If you like the idea of CoroutineScope, CoroutineContext, suspend, you will like the Kotlin Coroutines Design proposal https://github.com/Kotlin/KEEP/blob/master/proposals/coroutines.md
kotlin-multiplatform-bignum
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Kotlin Team AMA #3: Ask Us Anything
I've used this BigDecimal Kotlin implementation before and it seems to work fine, granted it would be nice if there was a alternative in the stdlib, but for now, that dependency works fine. :)
What are some alternatives?
KMQTT - Embeddable and standalone Kotlin Multiplatform MQTT broker
firebase-kotlin-sdk - A Kotlin-first SDK for Firebase
KorGE - KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
NoCopy Compiler Plugin - A Kotlin compiler plugin that removes the `copy` method of data classes.
compose-jb - Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
ksp - Kotlin Symbol Processing API
TelegramBotAPI - Type-safe library for work with Telegram Bot API
Kotlin Spotify Web API - Spotify Web API wrapper for Kotlin, Java, JS, and Native - Targets JVM, Android, JS (browser), Native (Desktop), and Apple tvOS/iOS. Includes a Spotify Web Playback SDK wrapper for Kotlin/JS, and a spotify-auth wrapper for Kotlin/Android.
krontab - Library for using Crontab-like syntax in scheduling of some Kotlin Coroutines tasks to do from time to time
PeopleInSpace - Kotlin Multiplatform project with SwiftUI, Jetpack Compose, Compose for Wear, Compose for Desktop, Compose for Web and Kotlin/JS + React clients along with Ktor backend.
spring-native - Spring Native is now superseded by Spring Boot 3 official native support
kotlin-power-assert - Kotlin compiler plugin to enable diagrammed function calls in the Kotlin programming language