为什么传递错误给我Argument type 'Error' does not conform to expected type 'Swift.Error'
?
enum AltError: Error {
case error(Error), initializesWereNil
}
enum ErrorAlt<Preferred, Error> {
case preferred(Preferred)
case error(AltError)
init?(_ preferred: Preferred?, _ err: Error?) {
if let preferred = preferred {
self = .preferred(preferred)
} else if let passedError = err {
self = .error(.error(passedError))
} else {
self = .error(.initializesWereNil)
}
}
}
最佳答案
从Error
定义中删除通用类型ErrorAlt
:
enum ErrorAlt<Preferred> {
//...
}
关于swift - 参数类型 'Error'与预期的Swift.Error类型不一致,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62719463/