Show/Export object dump if typetree dump is not available

AssetStudio/AssetStudio.csproj

@@ -17,4 +17,8 @@
     <PackageReference Include="K4os.Compression.LZ4" Version="1.1.11" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+  </ItemGroup>
+
 </Project>

AssetStudio/Classes/Object.cs

@@ -1,4 +1,8 @@
-using System.Collections.Specialized;
+using Newtonsoft.Json.Serialization;
+using Newtonsoft.Json;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using System.Reflection;
 
 namespace AssetStudio
 {
@@ -51,6 +55,25 @@ namespace AssetStudio
             return null;
         }
 
+        public string DumpObject()
+        {
+            string str = null;
+            try
+            {
+                str = JsonConvert.SerializeObject(this, new JsonSerializerSettings
+                {
+                    Formatting = Formatting.Indented,
+                    ReferenceLoopHandling = ReferenceLoopHandling.Ignore,
+                    ContractResolver = new IgnorePropertiesResolver()
+                }).Replace("  ", "    ");
+            }
+            catch
+            {
+                //ignore
+            }
+            return str;
+        }
+
         public OrderedDictionary ToType()
         {
             if (serializedType?.m_Type != null)
@@ -74,5 +97,25 @@ namespace AssetStudio
             reader.Reset();
             return reader.ReadBytes((int)byteSize);
         }
+
+        private class IgnorePropertiesResolver : DefaultContractResolver
+        {
+            private static readonly HashSet<string> _ignoreProps;
+
+            static IgnorePropertiesResolver()
+            {
+                _ignoreProps = new HashSet<string> { "assetsFile", "reader", "version", "platform", "serializedType" };
+            }
+
+            protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
+            {
+                JsonProperty property = base.CreateProperty(member, memberSerialization);
+                if (_ignoreProps.Contains(property.PropertyName))
+                {
+                    property.ShouldSerialize = _ => false;
+                }
+                return property;
+            }
+        }
     }
 }

AssetStudio/TypeTreeHelper.cs

@@ -116,7 +116,7 @@ namespace AssetStudio
                     {
                         append = false;
                         var size = reader.ReadInt32();
-                        reader.ReadBytes(size);
+                        reader.BaseStream.Position += size;
                         i += 2;
                         sb.AppendFormat("{0}{1} {2}\r\n", (new string('\t', level)), varTypeStr, varNameStr);
                         sb.AppendFormat("{0}{1} {2} = {3}\r\n", (new string('\t', level)), "int", "size", size);