所以,很快我就收到了以下错误:
Command failed due to signal: Segmentation fault: 11, While emitting IR SIL function
在以下代码中通过类型约束创建类的新实例时:
public protocol AddOn {
init()
init(main: Main, name: String)
func getId() -> String
func description()
}
public class Foo : NSObject, AddOn {
private var _main: Main?
private var _name: String = ""
required override public init() {
}
required public init(main: Main, name: String) {
self._main = main
self._name = name
}
public func getId() -> String {
return "Foo"
}
public func description() {
NSLog("Class: %@", self.getId())
}
}
public class Main {
private var _addons = Dictionary<String, AddOn.Type>()
init() {
}
public func registerAddOn<T: AddOn>(addOnProtocol: T.Type) {
// Here it is possible to Init the AddOn.Type to an object (e.q. Foo())
let addOn: AddOn = addOnProtocol() as AddOn
self._addons[addOn.getId()] = addOnProtocol
}
public func createInstance(addonClassName: String) {
var getAddOnType: AddOn.Type = self._addons[addonClassName]!
//Segmentation fault 11: While emitting IR SIL function
let instance = getAddOnType(main: self, name: "Bar")
}
}
var client: Main = Main()
client.registerAddOn(Foo.self)
client.createInstance("Foo")
在 registerAddOn 中我可以创建类 Foo 的新实例,但不能在 createInstance 中创建
最佳答案
OP 的解决方案。
private var _addons = Dictionary<String, AnyClass>()
public func registerAddOn(addOnProtocol: AnyClass) {
let addOnType = addOnProtocol as NSObject.Type
let addOn: AddOn = addOnType() as AddOn
self._addons[addOn.getId()] = addOnProtocol
}
public func createInstance(addonClassName: String) {
var getAddOnType: AddOn.Type = self._addons[addonClassName]!
let instance = getAddOnType(main: self, name: "Bar")
}
}
关于Swift 编译器错误 : Segmentation-fault 11 thrown when using type constraints,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28766541/