ObjC [NSMachPort port] into Swift translation

Question

I can't translate this Objective-C code into Swift

NSRunLoop *runloop = [NSRunLoop currentRunLoop];

    [runloop addPort:[NSMachPort port] forMode:NSDefaultRunLoopMode];

The problem is about

[NSMachPort port]

. How it looks in Swift?

This code as shown as incorrect:

let runloop:NSRunLoop = NSRunLoop.currentRunLoop()

            runloop.addPort(NSMachPort.port, forMode: NSDefaultRunLoopMode)

Neither

NSMachPort.port

or

NSMachPort.port()

are correct.

Does

NSPort()

the same as

[NSMachPort port]

?

Answer 1

NSMachPort is a subclass of NSPort rather than the latter being an improved name, so NSPort() will not construct an NSMachPort.

NSMachPort() is the equivalent of [NSMachPort port].

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