Is there anyone who can help me to find out why th...

# kotlin-native

[Lei Wu]

Is there anyone who can help me to find out why the method ‘objc_msgSend’ not work in kotlin? Is it a bug for the implementation of kotlin objective-c refection?

Please check the link below:
https://stackoverflow.com/questions/59407317/platform-objc-objc-msgsend-not-work-in-kotlin

[olonho]

How exactly is doesn’t work? People easier help when there’s well defined problem.

[Lei Wu]

Sorry for missing the link, I just edit the message, now it looks clearly

[olonho]

But what exactly do you mean by “doesn’t work”?

[Lei Wu]

let userId = framework.create(typeName: typeName, id: "testId")  as! UserId
// ????????  the userId is created sucessful but userId.id is empty, not the expetcting value "testId"

[Lei Wu]

In kotlin code:

objc_msgSend(instance, selector, id)

if this method work well, the userId.id should be “testId”

[sergey.bogolepov]

Hello! What versions of Kotlin and Xcode do you use?

[Lei Wu]

Xcode version: 11.3 (11C29)
Kotlin version: 1.3.61

[Lei Wu]

@sergey.bogolepov Hello? Could you help me to resolve this problem? Thank you very much, this issue blocks me for a long long time :(

[sergey.bogolepov]

I’m still investigating the problem. As a quick workaround you can implement the create function in Objective-C.

[olonho]

currently due to internal compiler limitations this scenario cannot be supported from KOtlin side, but feel free to use Sergey's suggestion and implement it on Objective-C side

[Lei Wu]

Ok, I see, thank you very much~