[Mono-bugs] [Bug 78593][Nor] New - Serialization formatters don't throw on missing fields

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Changed by robertj at gmx.net.

http://bugzilla.ximian.com/show_bug.cgi?id=78593

--- shadow/78593	2006-06-06 19:38:35.000000000 -0400
+++ shadow/78593.tmp.17404	2006-06-06 19:38:35.000000000 -0400
@@ -0,0 +1,82 @@
+Bug#: 78593
+Product: Mono: Class Libraries
+Version: 1.1
+OS: All
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: CORLIB
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: robertj at gmx.net               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Serialization formatters don't throw on missing fields
+
+MS.NET throws a SerializationException if a field is missing
+from the deserialization stream.
+
+Mono simply ignores the field, which remains uninitialized.
+Both formatters (BinaryFormatter, SoapFormatter) have this
+problem.
+
+Fix proposal: instead of iterating over the field names
+obtained from the deserialization stream, both formatter
+readers should interatate over the current type field
+members, maybe using FormatterServices.GetSerializableMembers.
+
+
+Steps to reproduce the problem:
+
+1) compile the code
+2) $ mono test.exe
+3) comment out the A.S field from the code
+4) recompile
+5) $ mono test.exe load
+
+
+using System;
+using System.Collections;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.Text;
+
+class T
+{
+        static void Main (string[] args)
+        {
+                if (args.Length > 0) {
+                        A a = (A) Load ();
+                        Console.WriteLine (a);
+                } else {
+                        Save (new A ());
+                        Console.WriteLine ("Saved");
+                }
+        }
+
+        static void Save (object data)
+        {
+                using (FileStream fs = File.Create ("dump.ser")) {
+                        BinaryFormatter f = new BinaryFormatter ();
+                        f.Serialize (fs, data);
+                }
+        }
+
+        static object Load ()
+        {
+                using (FileStream fs = File.OpenRead ("dump.ser")) {
+                        BinaryFormatter f = new BinaryFormatter ();
+                        return f.Deserialize (fs);
+                }
+        }
+}
+
+[Serializable]
+class A
+{
+        public string S = "Hola";
+}