swift - 'changeDetails(for:)' 的使用不明确

Question

在我的代码中，我遇到了以下错误代码:

Ambiguous use of 'changeDetails(for:)'

你能告诉我如何解决这个问题吗？

extension PHChange {
    func changeDetails<T: PHObject>(for object: T) -> PHObjectChangeDetails<T>? {
        return self.changeDetails(for: object) as! PHObjectChangeDetails<T>?
    }

    func changeDetails<T: PHObject>(for fetchResult: PHFetchResult<T>) -> PHFetchResultChangeDetails<T>? {
        return self.changeDetails(for: fetchResult)
    }
}

Answer 1

Photos 框架内已经有两个函数正在执行相同的操作。如果您仍然想创建通用版本，那么您应该更改外部参数名称，如下所示:

extension PHChange {
    func changeDetails<T: PHObject>(forObject object: T) -> PHObjectChangeDetails<T>? {
        return changeDetails(for: object) 
    }

    func changeDetails<T: PHObject>(forObject fetchResult: PHFetchResult<T>) -> PHFetchResultChangeDetails<T>? {
        return changeDetails(for: fetchResult)
    }
}