More About Future Support for Value Classes

Join us for the Kotlin 1.5 Online Event! ? https://kotl.in/youtube-event
The event will feature a live Q&A session with the Kotlin team.
? May 25, 2021 16:00 – 17:30 CEST

This is the 4th video from the Kotlin 1.5.0 release series. If you have not seen the previous videos please watch them first.

Sealed interfaces - https://youtu.be/d_Mor21W_60
JVM records - https://youtu.be/iyEWXyuuseU
Inline value classes - https://youtu.be/LpqvtgibbsQ

This video describes our plans to expand value class functionality. In it, we will discuss the syntactic change from inline classes to value classes, and provide further insight into the future development of this feature. Note that it is not stable functionality of the Kotlin 1.5 release!

00:00 Future: Value-Based Classes
01:33 Valhalla project
06:51 Immutability of value classes
10:37 Copyable properties and copying functions
14:27 More resources


Value classes represent immutable data classes without identity, which allows major future optimizations with the use of Java’s Valhalla Project. You can find more details about this planned functionality in the Design Notes on Kotlin Value Classes in KEEP.

Design Notes on Kotlin Value Classes in KEEP -https://github.com/Kotlin/KEEP/blob/master/notes/value-classes.md

Find all the news for this release in this blog post https://kotl.in/1.5.0
Visit Kotlin website - https://kotlinlang.org/
Kotlin Documentation - https://kotlinlang.org/docs/home.html

Check out our blog - https://blog.jetbrains.com/kotlin/
Subscribe to our Twitter - https://twitter.com/kotlin