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swiftでデバッグログ

Last updated at Posted at 2015-02-16

objective-cの時に使用していたdebug時のみログを吐き出すマクロをswiftで使えるようにしてみた。

project設定を編集

Build Setting内のOther Swift Flags
-DDEBUGを設定する。

sample.png

実装

log.swift
func debugLog(_ obj: Any?,
              file: String = #file,
              function: String = #function,
              line: Int = #line) {

    let fileName = URL(string: file)?.lastPathComponent ?? "unknown"

    #if DEBUG
        if let o = obj {
            print("[\(fileName):\(function) Line:\(line)] : \(o)")
        } else {
            print("[\(fileName):\(function) Line:\(line)]")
        }
    #endif
}

使い方

let hoge = Hoge()
debugLog(hoge)

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