EXC_BAD_ACCESS (code=1, address=0x0) on modern apple devices

alabash commented 5 years ago

Hi!

I'm using your library in several projects and love it. It works great and the problem seems to occur only on new Apple devices which is a mystery for me. And only in development (release build configuration crashes too) while simple Adhoc or Testflight install works fine, like it never happened. I've tested on iPhone XR and iPhone XS Max, they both crash while iPad Air, iPad Air 2 and iPad Mini 2 work as expected. All the devices mentioned above are running under iOS 12.1.

I've isolated crashing code. It is pretty straightforward.

class User: CoreStoreObject {
    let userId = Value.Required<Int>("user_id", initial: 0)
    let name = Value.Optional<String>("name")
}

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()

        let dataStack = DataStack(
            CoreStoreSchema(
                modelVersion: "V1",
                entities: [
                    Entity<User>("User")
                ],
                versionLock: [
                    "User": [0x71f1c9576306cae1, 0x1cc9e7d27b8905bd, 0x90ecdf3454c60c44, 0xe4f0004dd40736de]
                ]
            )
        )

        do {
            try dataStack.addStorageAndWait(SQLiteStore(fileName: "DataStorage.sqlite", localStorageOptions: .recreateStoreOnModelMismatch))
        } catch {
            print(error.localizedDescription)
        }

        CoreStore.defaultStack = dataStack

        CoreStore.perform(
            asynchronous: { transaction in
                let user: User = transaction.create(Into<User>())
                user.userId .= 1
                user.name .= "Core Store"
            },
            success: { _ in

            },
            failure: { error in
                print(error.localizedDescription)
            }
        )
    }
}