Bug 7880 - [CorDebugger] Debugging is broken for the foreach statement
Summary: [CorDebugger] Debugging is broken for the foreach statement
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Debugger ()
Version: 3.0.x
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-10-17 10:34 UTC by Allie Miller
Modified: 2013-09-16 14:14 UTC (History)
3 users (show)

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

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Description Allie Miller 2012-10-17 10:34:11 UTC
Case #:18573

Debugging is broken for the foreach statement
public static class Foreach
public static IEnumerable<T> Test<T>(IEnumerable<T> sequence, Action<T> action)
foreach(var item in sequence)

return sequence;
class MainClass
public static void Main(string[] args)
new string[]{"One", "Two", "Three"},

Runtime: Microsoft .NET v4.0.30319.17929
Operating System: Windows (Microsoft Windows NT 6.2.9200.0)
Distributor: Xamarin
Installation UUID: e040294e-bd60-4d08-9483-1bbfa25a8e43
Microsoft .NET 4.0.30319.17929
GTK 2.16.6
GTK# (
Mono for Android: Not Installed

No build info
Operating System:
Windows 6.2.9200.0 (64-bit)
Comment 1 Gabe Johnson 2013-08-04 13:38:43 UTC
I can confirm this bug is still present on OSX. Any movement on this?

This is nearly a showstopper, because if I need to debug code inside a foreach block I have to re-write it as a standard for-loop.

=== Xamarin Studio ===

Version 4.0.10 (build 7)
Installation UUID: b737f83e-0f6e-4cc5-8c4c-f9b62242f47e
	Mono 3.2.0 ((no/7c7fcc7)
	GTK 2.24.20
	GTK# (
	Package version: 302000000

=== Apple Developer Tools ===

Xcode 4.6.3 (2068)
Build 4H1503

=== Xamarin.Mac ===

Xamarin.Mac: Not Installed

=== Xamarin.iOS ===

Version: (Business Edition)
Hash: c9f7659
Build date: 2013-18-07 21:36:03-0400

=== Xamarin.Android ===

Not Installed

=== Build Information ===

Release ID: 400100007
Git revision: f324e2154ee86ae1b6b8483392eddbf418e6381b
Build date: 2013-07-20 06:23:58+0000
Xamarin addins: fe4f180e2386eafc00087ef68c3a580cff4a2592

=== Operating System ===

Mac OS X 10.8.4
Darwin Gabes-MacBook-Pro.local 12.4.0 Darwin Kernel Version 12.4.0
    Wed May  1 17:57:12 PDT 2013
    root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64
Comment 2 Jeffrey Stedfast 2013-08-04 19:49:45 UTC

Your bug isn't the same as this bug. This bug is in a specific debugger backend that isn't used on Mac OS X (it's only available on Windows).

Could you file a new bug and attach a sample program that shows the problem you are seeing? I seem to be able to debug foreach loops without any problems.

Comment 3 Marius Ungureanu 2013-09-16 14:14:17 UTC
Fixed and will be included in future releases.