Hello folks, I am currently working on a multiplat...

# multiplatform

[Tobi]

Hello folks, I am currently working on a multiplatform library, targeting jvm and native, involving some hashing. For that I need a ByteArray representation of a String, but just realised that String.toByteArray() (https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/to-byte-array.html) is just available on the jvm 😞

Any suggestion how I can do this in the common part?

[addamsson]

expect fun String.toByteArray(): ByteArray

[Tobi]

Thanks @addamsson, but how would you implement this using kotlin/native?

[addamsson]

I'd suggest a different name though so that you can delegate to toByteArray on the JVM

[addamsson]

I use TODO() for native 😄

[Tobi]

lol

[Tobi]

okay, maybe a question for #kotlin-native then?

[addamsson]

on a more serious note i'd take a look at the jvm implementation

[addamsson]

/**
 * Encodes the contents of this string using the specified character set and returns the resulting byte array.
 * @sample samples.text.Strings.stringToByteArray
 */
@kotlin.internal.InlineOnly
public inline fun String.toByteArray(charset: Charset = Charsets.UTF_8): ByteArray = (this as java.lang.String).getBytes(charset)

[addamsson]

public byte[] getBytes(Charset charset) {
        if (charset == null) throw new NullPointerException();
        return StringCoding.encode(charset, value, 0, value.length);
    }

[addamsson]

i'm not sure about the licensing though

[addamsson]

you can't copy it verbatim probably

[Tobi]

yep, already had a look at that.

[Tobi]

and was hoping for another answer ^^

[addamsson]

I think you can argue that if you remove the java specific parts like the system calls for security

[addamsson]

you're good to go

[addamsson]

😞

[addamsson]

welcome to the fertile grounds of Kotlin common

[addamsson]

you just have to bring your own seeds 😄

[Tobi]

😆

[Tobi]

gonna post this in #kotlin-native , maybe someone over there has a better idea

[addamsson]

good idea

[addamsson]

can you tag me there as well?

[addamsson]

i'll have to do #kotlin-native targets at some point

[Tobi]

Sure 👍