So, hello people, I’m trying to do something that ...

# multiplatform

[Cicero]

So, hello people, I’m trying to do something that I expected to be rather simple and it’s not working.
I have this object:

data class LoginModel(
    @SerialName("username")
    val username: String?,
    @SerialName("password")
    val password: String?,
    @SerialName("userType")
    val userType: String = "PROFESSIONAL"
)

With the serialisers and all, when I try to access it in swift I find this:
- (instancetype)initWithUsername:(NSString * _Nullable)username password:(NSString * _Nullable)password userType:(NSString *)userType
And when I try to use it on my code it kinda foces me to put something on my variable with a pre defined value, like this:

let login = common.LoginModel(username: emailTextfield.text, password: passwordTextField.text, userType: “PROFESSIONAL”)

I can live with this but I would like to know if there is an immediate solution.

PS: It works fine on android, as intended.

How default values work on swift: https://docs.swift.org/swift-book/LanguageGuide/Functions.html

[russhwolf]

Default arguments aren’t translated from Kotlin to Swift because they can’t be represented in Objective-C. You can workaround in this case by manually defining a secondary constructor

data class LoginModel(...) {
    constructor(username: String, password: String) : this(username, password, "PROFESSIONAL")
}

[Cicero]

Thanks, I just read about Objective-C not supporting default values, unfortunately sounds like a “never gonna happen”

[Big Chungus]

I think JB is working on direct swift interop, which would enable this. Also there's #serialization for such issues ;)

[russhwolf]

direct swift interop is in the long-term roadmap but it won’t be soon