---- Reported by jeff@thefirst.org 2007-07-07 13:21:37 MST ----

Please fill in this template when reporting a bug, unless you know what you
are doing.
Description of Problem:
Usually, in an iterator, we can put yield inside a try/finally block and
when control leaves the foreach loop for the iterator (because of "break"
or an exception) it will call the iterator's finally block. But if we leave
the foreach loop using goto, it doesn't do this. But we use "goto" to
transfer control out of one or more nested loops, and it should behave the
same as "break".

Steps to reproduce the problem:
1. Compile and run this code:
using System.Collections.Generic;

class TestGoto
{
    static int x = 0;

    static void Main(string[] args)
    {
        foreach (bool b in test())
        {
        }
    }

    static IEnumerable<bool> setX()
    {
        x = 1;
        try
        {
            yield return true;
        }
        finally
        {
            x = 0;
        }
    }

    static IEnumerable<bool> test()
    {
        foreach (bool b in setX())
        {
            yield return true;
            // Change "goto label" to "break" to show the correct result.
            goto label;
        }
    label:
        if (x == 0)
            System.Console.WriteLine("Success: finally was called");
        else
            System.Console.WriteLine("Error: finally was not called");
    }
}


Actual Results:
prints "Error: finally was not called" because the setX() iterator is not
closed when leaving the foreach loop.

Expected Results:
If you change "goto label" to "break", then the iterator is closed properly
and it prints "Success: finally was called". But a "goto" should act like
"break" and also close the iterator.

How often does this happen? 
Every time

Additional Information:



---- Additional Comments From jeff@thefirst.org 2007-07-13 00:11:08 MST ----

Microsoft has confirmed the same bug in their C# compiler and will 
fix it in the next release:
https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx
?FeedbackID=286401


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   <cf_op_sys_details>XP</cf_op_sys_details>
Unknown bug field "cf_version_details" encountered while moving bug
   <cf_version_details>1.2.4</cf_version_details>
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