アプリ開発時のスニペット的な何か

Logger.swift

import os

extension OSLogType: CustomStringConvertible {
    public var description: String {
        switch self {
        case OSLogType.info:
            return "INFO"
        case OSLogType.debug:
            return "DEBUG"
        case OSLogType.error:
            return "ERROR"
        case OSLogType.fault:
            return "FAULT"
        default:
            return "DEFAULT"
        }
    }
}

final class Logger {

    private init() {}

    static var osLog: OSLog = OSLog.default

    public static func info(message: String, osLog: OSLog = osLog) {
        doLog(message: message, osLog: osLog, logType: .info)
    }

    public static func debug(message: String, osLog: OSLog = osLog) {
        doLog(message: message, osLog: osLog, logType: .debug)
    }

    public static func error(_ error: Error, osLog: OSLog = osLog) {
        doLog(message: "error: \(error.localizedDescription)", osLog: osLog, logType: .error)
    }

    public static func error(message: String, osLog: OSLog = osLog) {
        doLog(message: message, osLog: osLog, logType: .error)
    }

    public static func fault(message: String, osLog: OSLog = osLog) {
        doLog(message: message, osLog: osLog, logType: .fault)
    }

    public static func `default`(message: String, osLog: OSLog = osLog) {
        doLog(message: message, osLog: osLog)
    }

    private static func doLog(message: String, osLog: OSLog, logType: OSLogType = .default) {
        os_log("[%@] %@", log: osLog, type: logType, String(describing: logType), message)
    }

}