Conversion hangs on large project

[samcoder1]

I have a relatively large project (maybe 50-100 vb files) and when I initiate the conversion it says
phase 1 of 2
.......
phase 2 of 2
......
Then it just hangs. I tried waiting it out for about 12 hours and it never completes. I tried it with a small project and it worked fine. I tried it using VS2017 and VS2019.
Any ideas on what could be wrong?
Did I not wait long enough?
Is there a way to debug the source code and point to a different .vbproj?

[GrahamTheCoder]

Hi thanks for posting. In each phase it should list the files. So something is definitely wrong. I would guess there's something special about the project file or its location which stops it finding anything to convert. If you can share any project type details that would help a lot

e.g. If the path contains any of these strings it will be ignored:
https://github.com/icsharpcode/CodeConverter/blob/master/ICSharpCode.CodeConverter/Shared/ProjectConversion.cs#L124

e.g. If the vb is embedded within various ASP style pages (anything not ending in vb) it won't work.

[GrahamTheCoder]

If you want to debug the source code, you can follow the instructions from the readme:
https://github.com/icsharpcode/CodeConverter#buildingrunning-from-source

Once you start the Vsix project in debug mode and load your project, I suggest setting a breakpoint here
https://github.com/icsharpcode/CodeConverter/blob/master/ICSharpCode.CodeConverter/Shared/ProjectConversion.cs#L82

You should see a document for each ".vb" file in the project

[GrahamTheCoder]

Could you clarify whether there are any file names mentioned in either phase, or whether the "......." is literal? Is there a particular file it hangs on? I've just found an issue where large files take a long time in phase 1 and attempted to mitigate it, let me know if it improves with update 7.8 just released.

Even without the source code checked out, you could start another Visual Studio instance, click Debug...Attach to Process, and attach to the other "devenv.exe", then hit the pause button and have a look at the stack trace (and paste it here). Note: You may need to look at the Debug->Windows->Parallel stacks to find a relevant stack trace that mentions the code converter.

[samcoder1]

Thanks for the responses. When I said "...." above, that was where the output listed all of the .vb files in the project. Phase 1 and Phase 2 listed all project files, however it would just hang after that.
Debugging didn't work. I did a comparison on the files listed in phase 1 and phase 2 and I discovered that there were 10 files missing in phase 2. One of them was the My Project/Settings.Designer.vb file. Since I didn't have any settings saved, I deleted it and ran it again. This time only 5 files were missing but only one file overlapped those two lists. I tried converting those files individually and they converted fine but I can't get the entire project to convert successfully. It just hangs when it's almost complete.

[GrahamTheCoder]

Thanks for the extra info. Could you give any more details on what difficulty you're having attaching a debugger? If you'd like you can call (grahamthecoder@gmail.com) on hangouts, or email me an id for some other service (skype etc.) and either screenshare or talk through debugging.

Ah, also, did you update the extension to the new version (7.8)?

[GrahamTheCoder]

It's possible there's some issue during converting the project file itself. One thing you could try, is deleting all files from the project (obviously make sure you have a copy saved somewhere else e.g. git).
Then try converting the project when it has absolutely no contents and see if it works. If not, could you sanitise the project file by changing any names you want to keep private and post it here?

[samcoder1]

I didn't update to 7.8 but I decided to convert each file one at a time and then load it into a new project. So far I came across one file that references MongoDB, System.Collections.Specialized and Serilog but just hangs when converting that file. I came across another file that doesn't import anything and realized there are self-references in both of those classes. The first instantiates itself within a public method and the second calls a Public Shared object.
Is it possible that self references cause it to spiral into a death loop?

[GrahamTheCoder]

Possible - there are various bits of logic that follow references (e.g. trying to find the constructors not called by others). Are you able to post a version of either file for me to debug? If you can't post the whole thing, perhaps try deleting about half at a time then converting to see which bit causes the issue, and just post that bit? Thanks!

[samcoder1]

Imports System.Collections.Specialized
Imports System.Configuration
Imports System.Net.Http
Imports System.Web
Imports DTS.Logging.MongoDB
Imports DTS.Logging.MongoDB.Configuration
Imports Serilog

''' <summary>
''' 
''' </summary>
''' <remarks></remarks>
Public Class LoggingDebugging

    Public Shared EnabledLogTypes As NameValueCollection = Util.GetConfigSection("Logging")
    Public Shared EnabledLogs As NameValueCollection = Util.GetConfigSection("enabledLogs")
    'Private Shared sempaphore As Object = New Object()
    ''' <summary>
    ''' Proxy method to set the LogInstance properties and add LogInstance class to LogBuffer
    ''' </summary>
    ''' <param name="logType"></param>
    ''' <param name="message"></param>
    ''' <param name="traceKey"></param>
    ''' <param name="user"></param>
    ''' <param name="TS"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Public Shared Function Log(ByVal logType As String, ByVal message As String, Optional ByVal traceKey As Long = Nothing, Optional ByVal user As String = Nothing, Optional ByVal TS As Long = Nothing) As Long

        Dim LogTS As Long

        If IsNothing(traceKey) Or traceKey = 0 Then
            Throw New ETDMSException(Util.t("traceKey must not be null. Please modify your method to either create a new " +
                                       "traceKey if it is the start of a request, or use an existing traceKey if it is " +
                                       "part of a request."))
        End If

        If LoggingDebugging.EnabledLogTypes(logType) = "True" Then

            Dim loginstance As New LogInstance(m_logType:=logType, m_message:=message, m_user:=user, m_TS:=TS)

            LogTS = LogAggregator.AddLogInstance(loginstance, traceKey)


        Else
            'If logType = "query" Then
            '    Dim LogEntry As New LogInstance(m_logType:=logType, m_message:=message, m_user:=user, m_TS:=TS)
            '    LogTS = LoggingDebugging.AddLogBuffer(Props:=LogEntry, traceKey:=traceKey)
            'End If
            LogTS = Now.Ticks()
        End If

        Return LogTS

    End Function



    ''' <summary>
    ''' Fluh out from Logbuffer
    ''' </summary>
    ''' <param name="userPin"></param>
    ''' <param name="traceKey"></param>
    ''' <remarks></remarks>
    Public Overloads Shared Sub FlushLog(ByVal userPin As String,
                                         Optional ByVal traceKey As String = Nothing,
                                         Optional ByRef esTime As String = Nothing,
                                         Optional ByRef request As HttpRequest = Nothing,
                                         Optional ByRef message As HttpRequestMessage = Nothing)

        Dim logitem As LogItem = Nothing
        LogAggregator.TryGet(userPin, logitem, traceKey, esTime, request, message)

    End Sub


    ''' <summary>
    ''' Converts ticks to Date and Time
    ''' </summary>
    ''' <param name="ticks"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Public Shared Function convertTickstoDateTime(ByVal ticks As Long) As String
        Dim dt As New DateTime(ticks)
        Return Format(dt, "MM/dd/yyy hh:mm:ss.fffffff")
    End Function

    ''' <summary>
    ''' Converts ticks to time
    ''' </summary>
    ''' <param name="ticks"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Public Shared Function convertTickstoTime(ByVal ticks As Long) As String
        Dim timespan As New TimeSpan(ticks)
        Return String.Format("{0}:{1}:{2}:{3}",
            timespan.Hours.ToString("D2"), timespan.Minutes.ToString("D2"),
            timespan.Seconds.ToString("D2"), timespan.Milliseconds.ToString("D3"))
    End Function

    ''' <summary>
    ''' Converts ticks to Date and Time with 24 hrs
    ''' </summary>
    ''' <param name="ticks"></param>
    ''' <returns></returns>
    ''' <remarks></remarks>
    Public Shared Function convertTickstoLongDateTime(ByVal ticks As Long) As String
        Dim dt As New DateTime(ticks)
        Return dt.ToString()
    End Function

    ''' <summary>
    ''' Reads configuration values for serilog
    ''' </summary>
    Public Shared Sub Configure()

        'Serilog.Log.Logger = New Serilog.LoggerConfiguration().ReadFrom.AppSettings().CreateLogger()

        Dim settings As StructuredMongoDBSettings = ConfigurationManager.AppSettings.MongoDBSettings()
        Serilog.Log.Logger = New Serilog.LoggerConfiguration() _
            .ReadFrom.AppSettings() _
            .Enrich.WithProperty("Application", "user-service-dev") _
            .Enrich.WithProperty("Stage", "local") _
            .WriteTo.StructuredMongoDB(settings) _
            .CreateLogger()

        Serilog.Log.Information("logger initialized")

    End Sub

End Class

[GrahamTheCoder]

I tried against 7.7 and 7.8 in Visual Studio, and 7.8 on the web converter just to check but it converted in a couple of seconds on all of them. Could be related to other files or something else about the system setup.

[GrahamTheCoder]

If you want to debug, try this or let me know which step you get up to:

You'll need two visual studio instances, one which will run the conversion, one which will attach to debug that process. Once it's hanging, do this:

2. Attach to the hanging VS

3. Pause

4.

5.

I need to see what's on the stack at the very top of the image

[kuxiaochouyu]

HI
I have the same issue, and I find that the possible problem is the conversion of design files. However, when I convert form1.designer.vb file alone, it will also hang.

[kuxiaochouyu]

I built a small project and found that it could be converted. But there are no events in C#'s design file( such as this.button.Click += new System.EventHandler(this.button_Click);).
I think the event is the most important for me. Because in the current project, there are thousands of events that cannot be changed one by one.

[samcoder1]

Nothing is showing up on parallel stacks.

This is the other VS instance:

When I try to pause the debugger, it always tries to look into a .NET library.

The worst part about it is the worker thread goes rogue. It causes my CPU to almost max out and won't stop even if I close Visual Studio. I have to kill VS in Task Manager.