Cmdlet for tracing invocations by the PowerShell engine internals

traceCmdletInternalsCommand.cs

using System;
using System.Management.Automation;
using System.Collections.Concurrent;

[Cmdlet(VerbsDiagnostic.Trace,"CmdletInternals")]
public class TraceCmdletInternalsCommand : Cmdlet, IDisposable {
    public static ConcurrentQueue<string> Log { get; set; }
    static TraceCmdletInternalsCommand() {
            Log = new ConcurrentQueue<string>();
    }
    object _inputObject;
    [Parameter(ValueFromPipeline=true)]
    public object InputObject {
        set {
            Log.Enqueue(Name+" set InputObject '"+value+"'");
            _inputObject = value;
        }
        get {
            return _inputObject;
        }
    }
    [Parameter()]
    public string Name {get;set;}
    object _parameter;
    [Parameter()]
    public object Parameter {
        set {
            Log.Enqueue("Set Parameter '"+value+"'");
            _parameter = value;
        }
        get {
            return _parameter;
        }
    }
    [Parameter()]
    public SwitchParameter PassThru { get; set; }
    public TraceCmdletInternalsCommand() {
        Name = "";
        logMethod("TraceCmdletInternalsCommand()");
    }
    void logMethod(string methodName) {
        Log.Enqueue(string.Join(" ",Name,methodName,"Stopping: "+Stopping.ToString()));
    }
    protected override void BeginProcessing() {
        logMethod("BeginProcessing()");
    }
    protected override void ProcessRecord() {
        logMethod("ProcessRecord()");
        if (PassThru.IsPresent) {
            WriteObject(InputObject);
        }
    }
    protected override void EndProcessing() {
        logMethod("EndProcessing()");
    }
    protected override void StopProcessing() {
        logMethod("StopProcessing()");
    }
    public void Dispose(){
        logMethod("Dispose()");
    }
}