I have an interface described in kotlin: ```interface Transport { suspend fun <T : Any> se...

# kotlin-native

[Jaroslav]

I have an interface described in kotlin:

interface Transport {
    suspend fun <T : Any> send(command: Command<T>, data: String): String
}

but when generated ios framework, there is no such method generated:

__attribute__((swift_name("Transport")))
@protocol IosTransport
@required
@end;

what’s wrong?

[svyatoslav.scherbina]

suspend functions aren’t exposed to Objective-C and Swift.

[Jaroslav]

so in a multiplatform (ios/jvm) framework you can’t use them?

[Jaroslav]

are there any workarounds for this? As we already have quite a big lib that uses a lot of suspend functions 😞

[thevery]

You cannot consume suspend from iOS because there is no coroutines in iOS

[thevery]

Create blocking/async wrapper for it

[Jaroslav]

so basically I have to remove all suspend’s from method signatures and handle that stuff inside methods? Or is it possible to make somthing similar to what is decribed here for java?
https://stackoverflow.com/questions/51808992/kotlin-suspend-fun

[svyatoslav.scherbina]

so basically I have to remove all suspend’s from method signatures

This is required only for interfaces and classes you subclass in Swift or Objective-C.

Or is it possible to make somthing similar to what is decribed here for java?

No.

[Jaroslav]

thanks!

[Sam]

You can make a parallel method that accepts a completion block and wraps your suspend method. It’s not very pretty but it works. Here’s an example. https://github.com/samus/mpp_chuck_demo/blob/master/app/src/commonMain/kotlin/com/synappticlabs/chuck/network/JokeApiClient.kt#L39