K/N iOS question: is there a way I can control how...

# kotlin-native

[tylerwilson]

K/N iOS question: is there a way I can control how a Kotlin Int gets translated to the ObjC code? Right now it is making it an int32_t which requires casting and such. I would like to make it an NSInteger, which require less of this. Thank you!

[olonho]

please provide more context, generally we provide bit of control on how translation happens, but try to make sane defaults

[tylerwilson]

I have a Kotlin ViewModel I created like so:

class DeclarationsViewModel(val declarations: List<Declaration>) {

    // how many declarations we have
    val count: Int = declarations.size
}

this gets translated to:

@interface SWLDeclarationsViewModel : KotlinBase
@property (readonly) int32_t count;
@end;

then i want to use in my UITableViewController (in Swift) like so:

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return self.viewModel?.count ?? 0
//        return Int(self.viewModel?.count ?? 0)
    }

but I get an error like so:

Cannot convert return expression of type ‘Int32’ to return type ‘Int’

[tylerwilson]

So I then have to do that ugly Int() wrapping you see in the comment.

[tylerwilson]

@olonho see above. thanks!

[drofwarcs]

+1 on this request

[drofwarcs]

@tylerwilson curious why the return type of that function an Int instead of NSInteger?

[tylerwilson]

You mean numberOfRowsInSection? That is a Swift method.

[drofwarcs]

ahhhh, just realized the "func"

[svyatoslav.scherbina]

Currently you can’t control that.

The problem is that <http://kotlin.Int|kotlin.Int> != NSInteger. For example, the second one is 64-bit integer on some platforms, while the first one is always 32-bit. So this feature should be designed carefully first.