---- Reported by adam.lofts@gmail.com 2006-03-23 16:35:20 MST ----

I'm pretty sure this is a mono bug (sorry if its not). Not sure if compiler
or runtime.

Not sure even if this is valid C#.

adam@a3000:~/Desktop$ cat Test.cs
using System;
using System.Threading;
using System.Collections.Generic;
using System.Reflection;

public class A
{
        public static void Go <T1, T2> (KeyValuePair <T1, T2> kvp)
        {
                Console.WriteLine ("Go: Kvp: {0}", kvp);
                Console.WriteLine ("Go: 1: {0} 2: {1}", kvp.Key, kvp.Value);
        }

        public static void Main ()
        {
                KeyValuePair<string, uint> kvp = new KeyValuePair<string,
uint> ("a", 21);
                Type type = kvp.GetType ();
                Type [] arguments = type.GetGenericArguments ();
                MethodInfo method = typeof (A).GetMethod ("Go");
                MethodInfo generic_method = method.MakeGenericMethod
(arguments);
                Console.WriteLine ("About to invoke: {0}", method);
                generic_method.Invoke (null, new object [] { kvp });
        }
}
adam@a3000:~/Desktop$ gmcs Test.cs -out:Test.exe
adam@a3000:~/Desktop$ ./Test.exe
About to invoke: Void Go[T1,T2](KeyValuePair`2)

Unhandled Exception: System.Reflection.TargetInvocationException: Exception
has been thrown by the target of an invocation. --->
System.NullReferenceException: Object reference not set to an instance of
an object
in <0x0009a>
System.Collections.Generic.KeyValuePair`2[System.String,System.UInt32]:ToString
()
in <0x00340> System.String:FormatHelper (System.Text.StringBuilder result,
IFormatProvider provider, System.String format, System.Object[] args)
in <0x0004d> System.String:Format (IFormatProvider provider, System.String
format, System.Object[] args)
in <0x00056> System.String:Format (System.String format, System.Object arg0)
in <0x00027> System.IO.TextWriter:Write (System.String format,
System.Object arg0)
in <0x0002b> System.IO.TextWriter:WriteLine (System.String format,
System.Object arg0)
in <0x00040> System.IO.SynchronizedWriter:WriteLine (System.String format,
System.Object value)
in <0x00033> System.Console:WriteLine (System.String format, System.Object
arg0)in <0x0003a> A:Go[String,UInt32] (KeyValuePair`2 kvp)
in <0x00000> <unknown method>
in (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke
(object,object[])
in <0x000da> System.Reflection.MonoMethod:Invoke (System.Object obj,
BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[]
parameters, System.Globalization.CultureInfo culture)--- End of inner
exception stack trace ---

in <0x00179> System.Reflection.MonoMethod:Invoke (System.Object obj,
BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[]
parameters, System.Globalization.CultureInfo culture)
in <0x00034> System.Reflection.MethodBase:Invoke (System.Object obj,
System.Object[] parameters)
in <0x00122> A:Main ()

adam@a3000:~/Desktop$ mono --version
Mono JIT compiler version 1.1.13.4, (C) 2002-2005 Novell, Inc and
Contributors. www.mono-project.com
        TLS:           __thread
        GC:            Included Boehm (with typed GC)
        SIGSEGV      : normal

adam@a3000:~/Desktop$ gmcs --version
Mono C# compiler version 1.1.13.4



---- Additional Comments From rharinath@novell.com 2006-04-01 14:10:10 MST ----

this appears to be a runtime bug.  Instrumenting
mono_runtime_invoke_array gives different errors depending on whether
printf or fprintf was used -- suggesting there's some memory corruption.



---- Additional Comments From adam.lofts@gmail.com 2006-05-25 13:10:40 MST ----

Any word on this? It's holding up dbus mono bindings.



---- Additional Comments From vargaz@gmail.com 2006-07-01 12:35:10 MST ----

Fixed in SVN.



Unknown operating system unknown. Setting to default OS "Other".