Easy diagnostics for apple platforms

Diagnostics.swift

import os

internal enum Diagnostics {
    
    internal static let logger: OSLog = OSLog(subsystem: "com.company", category: "diagnostics")
    
    @inline(__always)
    internal static func log(_ type: OSLogType = .debug, _ message: StaticString) {
        os_log(type, log: logger, message)
    }
    
    internal enum Signpost {
        
        @inline(__always)
        private static let logger: OSLog = OSLog(subsystem: "com.company", category: .pointsOfInterest)
        
        @inline(__always)
        internal static func begin(_ name: StaticString = #file, context: String = #function, id signpostID: OSSignpostID = OSSignpostID(log: logger)) -> () -> Void {
            os_signpost(.begin, log: logger, name: name, signpostID: signpostID, "%s", context)
            return { os_signpost(.end, log: logger, name: name, signpostID: signpostID, "%s", context) }
        }
    }
}