swift - 代码导致 Swift 索引消耗大量内存

Question

我有下面的代码旋转网，当 xcode 尝试索引时，它会导致 SourceKitService 消耗大量内存，并且将继续这样做，除非进程被杀死(在我杀死它之前达到超过 20GB)。

let key = ""
    let register = "";


    var vpn:String?
    var password:String?

    var taxDueString:String?
    var motDueString:String?
    var makeString:String?
    var dateString:String?
    var manufactureString:String?
    var ccString:String?
    var co2String:String?
    var fuelString:String?
    var exportString:String?
    var statusString:String?
    var colourString:String?
    var approvalString:String?
    var wheelplanString:String?
    var revenueString:String?

    var parkingIsOn:Bool?
    var motIsOn:Bool?
    var tollsIsOn:Bool?
    var insuranceIsOn:Bool?
    var fuelIsOn:Bool?
    var partsIsOn:Bool?
    var trafficIsOn:Bool?

    @IBOutlet weak var firstNameText: UITextField!
    @IBOutlet weak var lastNameText: UITextField!
    @IBOutlet weak var mobileText: UITextField!
    @IBOutlet weak var emailText: UITextField!
    @IBOutlet weak var confirmEmailText: UITextField!
...
Just.post(
            register,
            data: ["key": key, "vrn": vpn, "password": password, "taxDue": taxDueString, "motDue": motDueString, "make": makeString, "date": dateString, "manufacture": manufactureString, "cc": ccString, "co2": co2String, "fuel": fuelString, "export": exportString, "status": statusString, "colour": colourString, "approval": approvalString, "wheelplan": wheelplanString, "revenue": revenueString, "featureParking": parkingIsOn, "featureMot": motIsOn, "featureTolls": tollsIsOn, "featureInsurance": insuranceIsOn, "featureFuel": fuelIsOn, "featureParts": partsIsOn, "featureTraffic": trafficIsOn, "firstname": firstNameText.text, "lastname": lastNameText.text, "mobile": mobileText.text, "email": emailText.text ]
        ) { r in
            if r.ok {
                let json = JSON(data: r.content!);
                let success = json["success"].intValue

                print(json)

                if (success == 1){
                    let defaults = UserDefaults.standard
                    defaults.setValue(true, forKey: "logged")
                    defaults.setValue(json["ID"].intValue, forKey: "ID")
                    defaults.synchronize()

                    DispatchQueue.main.async { [unowned self] in
                        self.performSegue(withIdentifier: "registerToDash", sender: nil)
                    }

                }else{
                    DispatchQueue.main.async { [unowned self] in
                        self.showError(error: json["error"].stringValue)
                    }
                    return
                }

            }
        }

我可以看到是数据行导致了问题，因为当我将其注释掉时，所有索引都很好。

data: ["key": key, "vrn": vpn, "password": password, "taxDue": taxDueString, "motDue": motDueString, "make": makeString, "date": dateString, "manufacture": manufactureString, "cc": ccString, "co2": co2String, "fuel": fuelString, "export": exportString, "status": statusString, "colour": colourString, "approval": approvalString, "wheelplan": wheelplanString, "revenue": revenueString, "featureParking": parkingIsOn, "featureMot": motIsOn, "featureTolls": tollsIsOn, "featureInsurance": insuranceIsOn, "featureFuel": fuelIsOn, "featureParts": partsIsOn, "featureTraffic": trafficIsOn, "firstname": firstNameText.text, "lastname": lastNameText.text, "mobile": mobileText.text, "email": emailText.text ]

我似乎看不出上述代码有任何问题，但其中的某些内容导致索引崩溃/行为异常

Answer 1

我的猜测是它无法推断如此大的字典文字的类型。尝试将其定义为类型常量，然后将其传递到函数中。