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<TITLE> [Mono-bugs] [Bug 69462][Nor] New - Compiler crash on interface with event attribute [field:NonSerialized()]
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<H1>[Mono-bugs] [Bug 69462][Nor] New - Compiler crash on interface with event attribute [field:NonSerialized()]
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</H1>
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<B>bugzilla-daemon@bugzilla.ximian.com
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</B>
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<A HREF="mailto:bugzilla-daemon%40bugzilla.ximian.com"
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TITLE="[Mono-bugs] [Bug 69462][Nor] New - Compiler crash on interface with event attribute [field:NonSerialized()]">bugzilla-daemon@bugzilla.ximian.com
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</A><BR>
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<I>Sat, 13 Nov 2004 19:46:01 -0500 (EST)</I>
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<P><UL>
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<LI> Previous message: <A HREF="022577.html">[Mono-bugs] [Bug 69258][Wis] Changed - mod_mono package should require libapr >= 0.9.4
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<LI> Next message: <A HREF="022579.html">[Mono-bugs] [Bug 69466][Wis] New - undefined reference to `mono_main' in main.c
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<!--beginarticle-->
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<PRE>Please do not reply to this email- if you want to comment on the bug, go to the
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URL shown below and enter your comments there.
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Changed by <A HREF="mailto:jhill@arcfocus.com.">jhill@arcfocus.com.</A>
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<A HREF="http://bugzilla.ximian.com/show_bug.cgi?id=69462">http://bugzilla.ximian.com/show_bug.cgi?id=69462</A>
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--- shadow/69462 2004-11-13 19:46:01.000000000 -0500
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+++ shadow/69462.tmp.19979 2004-11-13 19:46:01.000000000 -0500
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@@ -0,0 +1,68 @@
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+Bug#: 69462
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+Product: Mono: Compilers
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+Version: 1.1
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+OS: other
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+OS Details: FC1 and FC2
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+Status: NEW
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+Resolution:
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+Severity:
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+Priority: Normal
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+Component: C#
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+AssignedTo: <A HREF="mailto:mono-bugs@ximian.com">mono-bugs@ximian.com</A>
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+ReportedBy: <A HREF="mailto:jhill@arcfocus.com">jhill@arcfocus.com</A>
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+QAContact: <A HREF="mailto:mono-bugs@ximian.com">mono-bugs@ximian.com</A>
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+TargetMilestone: ---
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+URL:
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+Cc:
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+Summary: Compiler crash on interface with event attribute [field:NonSerialized()]
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+
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+Please fill in this template when reporting a bug, unless you know what you
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+are doing.
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+Description of Problem:
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+The following test case will compile fine on csc, but mcs will fail with a
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+NullReferenceException from ApplyAttributeBuilder. If you comment out the
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+attribute, or change the interface to a class, the compilation will succeed.
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+
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+Steps to reproduce the problem:
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+1. Create X.cs file with the following code:
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+
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+using System;
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+interface X {
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+ [field:NonSerialized()]
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+ event EventHandler XEvent;
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+}
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+
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+2. Attempt to compile:
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+mcs x.cs -t:library
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+
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+Actual Results:
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+Unhandled Exception: System.NullReferenceException: Object reference not
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+set to an instance of an object
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+in <0x0001c> Mono.CSharp.EventField:ApplyAttributeBuilder
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+(Mono.CSharp.Attribute,System.Reflection.Emit.CustomAttributeBuilder)
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+in <0x0010c> Mono.CSharp.Attribute:Emit
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+(Mono.CSharp.EmitContext,Mono.CSharp.Attributable,System.Collections.Specialized.ListDictionary)
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+in <0x000ba> Mono.CSharp.Attributes:Emit
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+(Mono.CSharp.EmitContext,Mono.CSharp.Attributable)
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+in <0x00064> Mono.CSharp.Event:Emit ()
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+in <0x00d62> Mono.CSharp.TypeContainer:EmitType ()
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+in <0x004a4> Mono.CSharp.RootContext:EmitCode ()
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+in <0x00cff> Mono.CSharp.Driver:MainDriver (string[])
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+in <0x00019> Mono.CSharp.Driver:Main (string[])
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+
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+Expected Results:
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+Compilation succeeded
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+
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+How often does this happen?
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+Always.
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+
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+Additional Information:
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+When mcs fails, it will not output a file name or line number, making this
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+issue difficult to track in larger projects.
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+
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+On Mono 1.0.4, this attribute does not appear to be supported at all. When
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+it fails to compile, though, it does give a different error which actually
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+outputs the file name and line number:
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+x.cs(3) error CS0592: Attribute 'NonSerialized' is not valid on this
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+declaration type. It is valid on 'field' 'property' declarations only.
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+Compilation failed: 1 error(s), 0 warnings
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</PRE>
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<LI> Previous message: <A HREF="022577.html">[Mono-bugs] [Bug 69258][Wis] Changed - mod_mono package should require libapr >= 0.9.4
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</A></li>
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<LI> Next message: <A HREF="022579.html">[Mono-bugs] [Bug 69466][Wis] New - undefined reference to `mono_main' in main.c
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