func read()

in swift-source/all/FxAClient/FxAccountStorage.swift [16:35]

• 18 lines of code
• 3 McCabe index (conditional complexity)

    func read() -> PersistedFirefoxAccount? {
        // Firefox iOS v25.0 shipped with the default accessibility, which breaks Send Tab when the screen is locked.
        // This method migrates the existing keychains to the correct accessibility.
        keychainWrapper.ensureStringItemAccessibility(
            KeyChainAccountStorage.accessibility,
            forKey: KeyChainAccountStorage.keychainKey
        )
        if let json = keychainWrapper.string(
            forKey: KeyChainAccountStorage.keychainKey,
            withAccessibility: KeyChainAccountStorage.accessibility
        ) {
            do {
                return try PersistedFirefoxAccount.fromJSON(data: json)
            } catch {
                FxALog.error("FxAccount internal state de-serialization failed: \(error).")
                return nil
            }
        }
        return nil
    }