[Mono-bugs] [Bug 72831][Nor] New - Reflection/Generics: Error invoking a method of a generic type (argument is generic type)
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Mon, 21 Feb 2005 19:39:53 -0500 (EST)
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Changed by spigaz@gmail.com.
http://bugzilla.ximian.com/show_bug.cgi?id=72831
--- shadow/72831 2005-02-21 19:39:53.000000000 -0500
+++ shadow/72831.tmp.29751 2005-02-21 19:39:53.000000000 -0500
@@ -0,0 +1,85 @@
+Bug#: 72831
+Product: Mono: Runtime
+Version: 1.1
+OS:
+OS Details: Gentoo 2.6.10
+Status: NEW
+Resolution:
+Severity:
+Priority: Normal
+Component: misc
+AssignedTo: mono-bugs@ximian.com
+ReportedBy: spigaz@gmail.com
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL:
+Cc:
+Summary: Reflection/Generics: Error invoking a method of a generic type (argument is generic type)
+
+Description of Problem:
+Error when using reflection to invoke a method of a generic type with a
+generic type argument.
+
+Steps to reproduce the problem:
+1. Insert into a file:
+
+using System;
+using System.Reflection;
+
+namespace FLMID.Bugs.ParametersOne
+{
+ public class Class<T>
+ {
+ public void Add(T x)
+ {
+ System.Console.WriteLine("OK");
+ }
+ }
+ public class Test
+ {
+
+ public static void Main(string [] args)
+ {
+ Class<string> instance = new Class<string>();
+
+ MethodInfo _method = null;
+
+ foreach(MethodInfo method in
+typeof(Class<string>).GetMethods(BindingFlags.Instance | BindingFlags.Public))
+ {
+ if(method.Name.Equals("Add") && method.GetParameters().Length==1)
+ {
+ _method = method;
+ break;
+ }
+ }
+ _method.Invoke(instance , new object[]{"1"});
+ }
+ }
+}
+
+2. Compile it normally with gmcs.
+3. Run it without any args.
+
+Actual Results:
+Unhandled Exception: System.Reflection.TargetException: Unable to invoke an
+invalid target.
+in <unknown method>
+in <0x00004> System.Reflection.MonoMethod:InternalInvoke (System.Object ,
+System.Object[] )
+in [0x00033] (at
+/software/mono/mono.2005.02.21/mcs/class/corlib/System.Reflection/MonoMethod.cs:121)
+System.Reflection.MonoMethod:Invoke (System.Object obj, BindingFlags
+invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,
+System.Globalization.CultureInfo culture)
+
+
+Expected Results:
+OK
+
+How often does this happen?
+Always
+
+Additional Information:
+Tested in .NET 2.0 and worked fine, the .NET 2.0 assembly gives the same
+error on mono.