Am I supposed to use the `skie` wrapper to call a generic when my object is an instance of a generic...

# touchlab-tools

[curioustechizen]

Am I supposed to use the skie wrapper to call a generic when my object is an instance of a generic interface where the generic types have been filled in?

// Kotlin
interface UseCase<I, O> {
    suspend fun execute(input: I): O
}

class FooUseCase: UseCase<Bar, Baz> {
    override suspend fun execute(input: Bar): Baz {
        return Baz()
    }
}

//Swift: Somewhere in an ObservableObject
let fooUseCase: FooUseCase = KotlinDependencies.getFooUseCase()

// In some function
Task {
    let bar = getBar()
    let result = try await fooUseCase.execute(input: bar)
}

This itself does not produce a syntax error but if I try to wrap my usecase in the skie function there are some type inference errors.

try await skie(fooUseCase).execute(input: bar // This leads to type inference errors

[Filip Dolník]

The wrapper should not be used for methods that originate from generic interfaces - only generic classes. The reason is that interfaces in Obj-C loose the generics and therefore do not have the same problem as generic classes.

[curioustechizen]

Ah that makes sense. Thanks for the explanation.