NS_ENUM 支援字串

NS_ENUM_STRING.m

#define LIST_OF_ServerAPI \
/*會員*/ \
api(登入, member/login) \
api(FB登入, member/fbLogin)

typedef NS_ENUM(NSInteger, ServerAPI) {
#define api(key, name) key,
    LIST_OF_ServerAPI
#undef api
};

- (void)call {
    NSString *apiKey;
    NSString *apiName;
    
    switch (api) {
#define api(key, name) \
        case key: \
            apiKey = @#key; \
            apiName = @#name; \
            break;
            
        LIST_OF_ServerAPI
#undef api
        default:
            NSAssert1(false, @"%@：ServerAPI未實作", NSStringFromSelector(_cmd));
            return;
    }
}