我正在尝试在
Swift中扩展一个Obj-C类,并使其符合Equatable协议.这需要访问扩展类的一些私有成员,编译器不允许我这样做.如果不公开私人会员,这样做的正确方法是什么？
迅速：
import Foundation
extension ShortDate : Equatable {
}
public func == (lhs: ShortDate,rhs: ShortDate) -> Bool {
if (lhs.components.year == rhs.components.year)
&& (lhs.components.month == rhs.components.month)
&& (lhs.components.day == rhs.components.day) {
return true;
}
return false;
}
Objective-C的：
@interface ShortDate : NSObject<NSCopying,NSCoding> {
NSDate *inner;
NSDateComponents *components; // The date split into components.
}
...
@end
错误：
ShortDate.swift:26:9: ‘ShortDate’ does not have a member named ‘components’
