BindableState - Binding to state of different type

[nmccann]

Hi,

I've recently started migrating to BindableState, but in the process I've run into a situation that seems like it should have an easy answer, but I'm unable to figure it out.

I'm working on a login form with the following state (simplified):

struct LoginState: Equatable {
@BindableState var password: Redacted<String> = .init(secret: "")
}

The Redacted type is a wrapper that helps make it obvious that a given type shouldn't be included in any logging (using a custom mirror).

Later, in my view, I would like to create a binding. I can't use: SecureField("Password", text: viewStore.$password) because that would only work with a String. I was able to get around this with:

SecureField("Password", text: viewStore.binding(get: { $0.password.secret },
                                                        send: { .binding(.set(\.password, .init(secret: $0)))})

While the above works, it emits the following deprecation warning: 'set' is deprecated: For improved safety, bindable properties must now be wrapped explicitly in 'BindableState', and accessed via key paths to that 'BindableState', like '\.$value'

What would be the recommended way to bind a value of one type to a different type when using @BindableState?

Thank you for any guidance you can provide!

Note: I have considered just using a String and making my LoginState conform to CustomDumpReflectable to omit the password, but that still leaves it in the action logs (so I'd likely have to make LoginAction conform to that as well, which further complicates things - having a single Redacted type would be preferable)

[mbrandonw]

If the secret field in Redacted is a mutable var, then you should be able to just do this:

SecureField("Password", text: viewStore.$password.secret)

[nmccann]

Yup - that worked. Thank you for the quick response!