---- Reported by malekith@pld-linux.org 2005-08-06 17:23:15 MST ----

Description of Problem:

The following example either asserts at runtime or throws null reference
exception:


using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

[Serializable]
public struct Tuple <a,b> {
  public a field1;
  public b field2;

  public Tuple (a x, b y) {
    field1 = x;
    field2 = y;
  }
}


public class Test {
   public static void Main()  {

      //Creates a new TestSimpleObject object.
      TestSimpleObject obj = new TestSimpleObject();

      Console.WriteLine("Before serialization the object contains: ");
      obj.Print();

      //Opens a file and serializes the object into it in binary format.
      Stream stream = File.Open("data.xml", FileMode.Create);
      BinaryFormatter formatter = new BinaryFormatter();

      //BinaryFormatter formatter = new BinaryFormatter();

      formatter.Serialize(stream, obj);
      stream.Close();

      //Empties obj.
      obj = null;

      //Opens file "data.xml" and deserializes the object from it.
      stream = File.Open("data.xml", FileMode.Open);
      formatter = new BinaryFormatter();

      //formatter = new BinaryFormatter();

      obj = (TestSimpleObject)formatter.Deserialize(stream);
      stream.Close();

      Console.WriteLine("");
      Console.WriteLine("After deserialization the object contains: ");
      obj.Print();
   }
}


// A test object that needs to be serialized.
[Serializable()]
public class TestSimpleObject  {

    public Tuple <string,int>  member6;

    public TestSimpleObject() {
        member6 = new Tuple <string, int> ("aa", 22);
    }


    public void Print() {
        Console.WriteLine("member6 = '{0} {1}'", member6.field1,
member6.field2);
    }
}

With the attached patch it runs, but doesn't deserialize the object correctly.

It works OK with class instead of struct (like in #75299).

Additional Information:

I'm running mono svn trunk.



---- Additional Comments From malekith@pld-linux.org 2005-08-06 17:24:23 MST ----

Created an attachment (id=168319)
partial fix




---- Additional Comments From miguel@ximian.com 2005-08-23 13:36:33 MST ----

martin, can you review/approve?



---- Additional Comments From malekith@pld-linux.org 2005-08-23 13:38:25 MST ----

Remark: the patch doesn't solve the problem, just part of it.



---- Additional Comments From martin@ximian.com 2005-09-05 03:08:37 MST ----

Fixed.



---- Additional Comments From martin@ximian.com 2005-09-05 03:09:17 MST ----

I mean, I applied the patch.



---- Additional Comments From miguel@ximian.com 2005-09-25 16:53:14 MST ----

Lluis, we need some help here, can you look at this bug?



---- Additional Comments From lluis@ximian.com 2005-09-26 07:41:15 MST ----

It fails because reflection has problems with generic struct values.
This problem is reported in https://bugzilla.novell.com/show_bug.cgi?id=MONO76136.



---- Additional Comments From vargaz@gmail.com 2005-11-15 14:09:09 MST ----

This one is fixed as well.


This bug depended on bug(s) 76136.
Imported an attachment (id=168319)

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   <cf_op_sys_details>amd64 pld linux</cf_op_sys_details>
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