Bug 5411 - Regression: Cannot watch nullable fields
Summary: Regression: Cannot watch nullable fields
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Debugger ()
Version: Trunk
Hardware: PC Linux
: --- major
Target Milestone: ---
Assignee: Jeffrey Stedfast
Depends on:
Reported: 2012-05-30 06:57 UTC by Marek Safar
Modified: 2012-06-06 06:54 UTC (History)
1 user (show)

Is this bug a regression?: ---
Last known good build:

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Description Marek Safar 2012-05-30 06:57:27 UTC
using System;
using System.Threading.Tasks;
using System.Collections.Generic;
using System.Threading;

class C
	CancellationTokenRegistration? cancellationRegistration;

class Program
	static int Main ()
		var c = new C ();
		return 0;

Add c to Watch window and expand

Error in soft debugger method call thread on method String System.Nullable`1:ToString () on object System.Nullable`1[[System.Threading.CancellationTokenRegistration, mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089]]
System.ArgumentException: Incorrect number or types of arguments
Parameter name: arguments
  at Mono.Debugger.Soft.ObjectMirror.EndInvokeMethodInternal (IAsyncResult asyncResult) [0x00071] in /home/marek/git/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/ObjectMirror.cs:262 
  at Mono.Debugger.Soft.StructMirror.EndInvokeMethod (IAsyncResult asyncResult) [0x00001] in /home/marek/git/monodevelop/main/contrib/Mono.Debugger.Soft/Mono.Debugger.Soft/StructMirror.cs:68 
  at Mono.Debugging.Soft.MethodCall.EndInvoke () [0x00074] in /home/marek/git/monodevelop/main/src/addins/MonoDevelop.Debugger.Soft/Mono.Debugging.Soft/SoftDebuggerAdaptor.cs:1478
Comment 1 Jeffrey Stedfast 2012-05-31 15:23:14 UTC
I'm not getting this error (I even tried Mono 2.11 from git master)
Comment 2 Marek Safar 2012-06-06 06:54:04 UTC
It seems to work again