DebugLog

DebugLog macro alternative for Swift, replacing old C macros e.g. Log-YIHelper.

How to use

1. Drag & drop DebugLog.all.swift to your Xcode project.
2. Set OTHER_SWIFT_FLAGS = -D DEBUG in your Xcode project target.

LOG()

LOG("Hello World!")

LOG_OBJECT(self.window)
LOG_OBJECT(AppDelegate.self)

let int: Int = 3
LOG_OBJECT(int)

let float: Float = 3.0
LOG_OBJECT(float)

let rect: CGRect = CGRect(x: 10, y: 20, width: 30, height: 40)
LOG_OBJECT(rect)

let range: Range = 1...3
LOG_OBJECT(range)

let nsRange: NSRange = NSMakeRange(2, 4)
LOG_OBJECT(nsRange)

let optional: Int? = nil
LOG_OBJECT(optional)

will display:

2015-12-12 18:01:00.375 [AppDelegate.application(_:didFinishLaunchingWithOptions:):24]
2015-12-12 18:01:00.376 [AppDelegate:26] Hello World!
2015-12-12 18:01:00.380 [AppDelegate:28] self.window = nil
2015-12-12 18:01:00.381 [AppDelegate:29] AppDelegate.self = DebugLogDemo.AppDelegate
2015-12-12 18:01:00.381 [AppDelegate:32] int = 3
2015-12-12 18:01:00.382 [AppDelegate:35] float = 3.0
2015-12-12 18:01:00.382 [AppDelegate:38] rect = (10.0, 20.0, 30.0, 40.0)
2015-12-12 18:01:00.383 [AppDelegate:41] range = 1..<4
2015-12-12 18:01:00.383 [AppDelegate:44] nsRange = (2,4)
2015-12-12 18:01:00.384 [AppDelegate:47] optional = nil

Note

LOG_OBJECT does not print variable names on Devices. Output would look like this.

2015-12-12 18:01:00.375 [AppDelegate.application(_:didFinishLaunchingWithOptions:):24]
2015-12-12 18:01:00.376 [AppDelegate:26] Hello World!
2015-12-12 18:01:00.380 [AppDelegate:28] nil
2015-12-12 18:01:00.381 [AppDelegate:29] DebugLogDemo.AppDelegate
2015-12-12 18:01:00.381 [AppDelegate:32] 3
2015-12-12 18:01:00.382 [AppDelegate:35] 3.0
2015-12-12 18:01:00.382 [AppDelegate:38] (10.0, 20.0, 30.0, 40.0)
2015-12-12 18:01:00.383 [AppDelegate:41] 1..<4
2015-12-12 18:01:00.383 [AppDelegate:44] (2,4)
2015-12-12 18:01:00.384 [AppDelegate:47] nil

For further customization, change default Debug.printHandler to print in any format & logging destination.

More information is available at Qiita (in Japanese).