[Mono-bugs] [Bug 41974][Cos] Changed - Illegal ArgumentNullException throw for the dynamic creation of object

[bugzilla-daemon@rocky.ximian.com]

Please do not reply to this email- if you want to comment on the bug, go to the
URL shown below and enter your comments there.

Changed by gfr@skynet.be.

http://bugzilla.ximian.com/show_bug.cgi?id=41974

--- shadow/41974	Sun Apr 27 16:25:53 2003
+++ shadow/41974.tmp.3536	Tue Apr 29 04:47:12 2003
@@ -73,6 +73,123 @@
 
 Best regards,
 Gilles
 
 ------- Additional Comments From miguel@ximian.com  2003-04-27 16:25 -------
 Please provide a complete program to test with.
+
+------- Additional Comments From gfr@skynet.be  2003-04-29 04:47 -------
+Hello Mr Miguel de Icaza,
+
+As you Requested a sample, i've given you one:
+
+Step to reproduce the problem:
+
+1 . Copy the following content inside a file called sample.cs
+
+>>> SOT >>>
+using System;
+using System.Reflection;
+                                                                     
+                                                       
+namespace Test4
+{
+  public class DynamicClass
+  {
+    public DynamicClass (System.String arg)
+    {
+      System.Console.Out.WriteLine ("DynamicClass - inside the .ctor
+with arg = '{0}'", arg);
+    }
+  }
+                                                                     
+                                                       
+  public class StaticClass
+  {
+    static public void Main ()
+    {
+      System.Object obj;
+      System.Type   type = typeof (DynamicClass);
+                                                                     
+                                                       
+      if (type == null)
+      {
+        System.Console.Out.WriteLine ("ERROR - Impossible to produce
+the test");
+      }
+                                                                     
+                                                       
+      try
+      {
+        obj  = type.InvokeMember (null,
+          System.Reflection.BindingFlags.Default |
+System.Reflection.BindingFlags.CreateInstance,
+          null,
+          null,
+          new System.Object [] { "One Argument" });
+      }
+                                                                     
+                                                       
+                                                                     
+                                                       
+      catch (System.ArgumentNullException ex)
+      {
+        obj = null;
+        System.Console.Out.WriteLine ("Exception catched - {0}",
+ex.ToString ());
+      }
+                                                                     
+                                                       
+      if (obj != null)
+      {
+        System.Console.Out.WriteLine ("Test Successfull");
+      }
+      else
+      {
+        System.Console.Out.WriteLine ("Test fail");
+      }
+    }
+  }
+}
+>>> EOT >>>
+
+2. Compile it with the following command: 
+
+  mcs -target:exe -out:sample.exe sample.cs
+
+3. Execute it with:
+
+  mono sample.exe
+
+==> The result under the microsoft dotnet version 1.0 is
+
+DynamicClass - inside the .ctor with arg = 'One Argument'
+Test Successfull
+
+==> The result under the mono runtime (cvs of Apr 26, 2003)
+
+Exception catched - System.ArgumentNullException: Argument cannot be null
+Parameter name: name
+in <0x001c2> 00 System.MonoType:InvokeMember
+(string,System.Reflection.BindingFlags,System.Reflection.Binder,object,object[],System.Reflection.ParameterModifier[],System.Globalization.CultureInfo,string[])
+in <0x0002f> 00 System.Type:InvokeMember
+(string,System.Reflection.BindingFlags,System.Reflection.Binder,object,object[])
+in <0x000ac> 00 Test4.StaticClass:Main ()
+                                                                     
+                                                       
+Test fail
+
+
+==> Remarks: 
+
+Personnally, It think that the better way to make the call is to use
+for the parameter called 'name' of the method InvokeMember the value
+getted from System.String.Empty. 
+
+I've put this entry only in order to get a greater compatibility
+between the Microsoft and the Ximian dotnet.
+
+I've believe that if this difference is not fixed, it would be great
+to create a porting how-to or a good dotnet programming how-to.
+
+Best Regards,
+Gilles