does c#'s <pattern matching> they intrigue the kot...

# language-evolution

[Hullaballoonatic]

does c#'s pattern matching they intrigue the kotlin team at all?

[eygraber]

Seems very similar to Kotlin. Is there anything specific you were thinking of?

[Hullaballoonatic]

take a look at how it can be used in switch expressions or by comparing nested values as well as "not", "and", "or", "with", etc

[eygraber]

I'm pretty sure that's all covered by Kotlin's smart casting and when. At first glance it didn't look like there was anything that couldn't be done in Kotlin.

[Hullaballoonatic]

here's an example of what you could do in kotlin with all the pattern matching you have in c#:

val Number.normalized
    get(): Int = when (toInt()) {
        > 0 -> 1
        < 0 -> -1
        else -> 0
    }

[Hullaballoonatic]

or look at this part:
https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/functional/pattern-matching#multiple-inputs

[elizarov]

Many of the practical use-cases of C#’s pattern matching are already covered by Kotlin’s when, but not all of them. Please, add your feedback on the use-cases you encounter in Kotlin code to https://youtrack.jetbrains.com/issue/KT-186