Merge pull request #2975 from eugene-doobu/feature/fix-serialize-exce…

…ption

Feature/fix serialize exception

Lib9c.MessagePack/Formatters/CurrencyFormatter.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Buffers;
+using MessagePack;
+using Libplanet.Types.Assets;
+using MessagePack.Formatters;
+using Bencodex;
+
+namespace Lib9c.Formatters
+{
+    public class CurrencyFormatter : IMessagePackFormatter<Currency>
+    {
+        public void Serialize(ref MessagePackWriter writer, Currency value, MessagePackSerializerOptions options)
+        {
+            if (value.Equals(default))
+            {
+                writer.WriteNil();
+                return;
+            }
+
+            writer.Write(new Codec().Encode(value.Serialize()));
+        }
+
+        public Currency Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options)
+        {
+            if (reader.TryReadNil())
+            {
+                return default;
+            }
+
+            options.Security.DepthStep(ref reader);
+
+            var bytes = reader.ReadBytes()?.ToArray();
+            if (bytes is null)
+            {
+                throw new InvalidOperationException();
+            }
+
+            return new Currency(new Codec().Decode(bytes));
+        }
+    }
+}

Lib9c.MessagePack/Formatters/NineChroniclesResolverGetFormatterHelper.cs

@@ -6,6 +6,7 @@
 using Libplanet.Types.Assets;
 using MessagePack.Formatters;
 using Nekoyume.Action;
+using Nekoyume.Model.State;
 
 namespace Lib9c.Formatters
 {
@@ -22,6 +23,7 @@ public static class NineChroniclesResolverGetFormatterHelper
             {typeof(Dictionary), new BencodexFormatter<Dictionary>()},
             {typeof(IValue), new BencodexFormatter<IValue>()},
             {typeof(ActionBase), new NCActionFormatter()},
+            {typeof(Currency), new CurrencyFormatter()},
             // add more your own custom serializers.
         };
 

Lib9c/Action/InvalidSignatureException.cs

@@ -34,7 +34,8 @@ StreamingContext context
         )
         {
             base.GetObjectData(info, context);
-            info.AddValue(nameof(Pending), new Codec().Encode(Pending.Serialize()));
+            var pendingData = Pending is null ? null : new Codec().Encode(Pending.Serialize());
+            info.AddValue(nameof(Pending), pendingData);
             info.AddValue(nameof(Signature), Signature);
         }
     }