mail-archives/mono-bugs/2008-September/078772.html

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<TITLE> [Mono-bugs] [Bug 422951] New: Error in assigning to ref parameter
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<H1>[Mono-bugs] [Bug 422951] New: Error in assigning to ref parameter</H1>
<B>bugzilla_noreply at novell.com</B>
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TITLE="[Mono-bugs] [Bug 422951] New: Error in assigning to ref parameter">bugzilla_noreply at novell.com
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<I>Thu Sep 4 02:57:39 EDT 2008</I>
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<PRE><A HREF="https://bugzilla.novell.com/show_bug.cgi?id=422951">https://bugzilla.novell.com/show_bug.cgi?id=422951</A>
Summary: Error in assigning to ref parameter
Product: Mono: Compilers
Version: unspecified
Platform: Other
OS/Version: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: C#
AssignedTo: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">mono-bugs at lists.ximian.com</A>
ReportedBy: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">miguel at novell.com</A>
QAContact: <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">mono-bugs at lists.ximian.com</A>
Found By: ---
The following code produces invalid IL code:
class X {
static void Main ()
{
object x = null;
R (ref x);
}
static void R (ref object o)
{
o = new Hashtable () {{1,2}};
}
}
Running this program produces:
Unhandled Exception: System.InvalidProgramException: Invalid IL code in X:R
(object&amp;): IL_001a: ret
at X.Main () [0x00000]
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