lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

erica

// @discardableResult to be added
// @noescape needs to move to type annotation
// needs to add _ for item
public func with<T>(item: T, @noescape update: (inout T) throws -> Void) rethrows -> T {
    var this = item; try update(&this); return this
}

samdmarshall

// taken from https://opensource.apple.com/source/CF/CF-855.17/CFDate.c
CFAbsoluteTime CFAbsoluteTimeGetCurrent(void) {
    CFAbsoluteTime ret;
    struct timeval tv;
    gettimeofday(&tv, NULL); // http://linux.die.net/man/2/gettimeofday
    ret = (CFTimeInterval)tv.tv_sec - kCFAbsoluteTimeIntervalSince1970;
    ret += (1.0E-6 * (CFTimeInterval)tv.tv_usec);
    return ret;
}

willrichman

/* Taken from stackOverflow http://stackoverflow.com/questions/24475792/how-to-use-pull-to-refresh-in-swift */
        self.refreshControl = UIRefreshControl()
        self.refreshControl?.attributedTitle = NSAttributedString(string: "Pull to refresh")
        self.refreshControl?.addTarget(self, action: "refreshTweets:", forControlEvents: UIControlEvents.ValueChanged)
        self.tableView.addSubview(self.refreshControl!)
        
        
    func refreshTweets (sender: AnyObject) {
        NetworkController.controller.fetchTimeLine(timelineType, isRefresh: true, newestTweet: self.tweets?[0], userScreenname: userTimelineShown) { (errorDescription, tweets) -> Void in
            if errorDescription != nil {

adomado

db = connect("localhost:27017/test");
var cursor = db.unicorns.find({gender : "m"});
var total = 0;
while(cursor.hasNext()) {
  var obj = cursor.next();
  total += (obj.hits || 0);
}
print(total);