CODEWITHSUNDEEP
swiftrealm
Jonathan Tuzman
Jonathan Tuzman

Reputation: 13262

Can't cast from RLMObject to a subclass of Object?

Song is a subclass of RLMObject (typealias Object) and is used throughout my app, including in searchViewController(_:cellForObject:atIndexPath:)

let song = object as! Song

But in my prepare(for segue:) method (below), when I try to perform the same downcast, the compiler says "Cast from 'RLMObject' to unrelated type 'Song' always fails."

if let row = tableView.indexPathForSelectedRow?.row {
    YpbApp.currentRequest?.songObject = results!.object(at: UInt(row)) as? Song
}

This doesn't makes sense, what's wrong here?

Upvotes: 0

Views: 270

Answers (1)

Thomas Goyne
Thomas Goyne

Reputation: 8138

RLMObject is not a typealias for Object; they are different classes entirely that have different interfaces. It sounds like you are trying to mix the Swift and Objective-C APIs, which is not supported.

Upvotes: 3

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