Protobuf-net Попытка JIT-метода компиляции (динамический метод-оболочка) ClassExtensions.StringArray

Question

Unity3d protobuf-net для сериализации. Я предварительно компилирую свой RuntimeTypeModel, а затем загружаю его и использую для сериализации.

КСН Я до сих пор получаю следующее сообщение об ошибке:

ExecutionEngineException: Attempting to JIT compile method '(wrapper dynamic-method) ClassExtensions.StringArray:proto_3 (object,ProtoBuf.ProtoWriter)' while running with --aot-only. 

    at System.Delegate.CreateDelegate (System.Type type, System.Object firstArgument, System.Reflection.MethodInfo method, Boolean throwOnBindFailure) [0x00000] in <filename unknown>:0 
    at System.Delegate.CreateDelegate (System.Type type, System.Reflection.MethodInfo method, Boolean throwOnBindFailure) [0x00000] in <filename unknown>:0 
    at System.Delegate.CreateDelegate (System.Type type, System.Reflection.MethodInfo method) [0x00000] in <filename unknown>:0 
    at System.Reflection.Emit.DynamicMethod.CreateDelegate (System.Type delegateType) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Compiler.CompilerContext.BuildSerializer (IProtoSerializer head, ProtoBuf.Meta.TypeModel model) [0x00000] in <filename unknown>:0 
Rethrow as InvalidOperationException: It was not possible to prepare a serializer for: ClassExtensions.StringArray 
    at ProtoBuf.Compiler.CompilerContext.BuildSerializer (IProtoSerializer head, ProtoBuf.Meta.TypeModel model) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.CompiledSerializer..ctor (IProtoTypeSerializer head, ProtoBuf.Meta.TypeModel model) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.CompiledSerializer.Wrap (IProtoTypeSerializer head, ProtoBuf.Meta.TypeModel model) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.MetaType.CompileInPlace() [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.MetaType.get_Serializer() [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.RuntimeTypeModel.Serialize (Int32 key, System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.ProtoWriter.WriteObject (System.Object value, Int32 key, ProtoBuf.ProtoWriter writer) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.SubItemSerializer.ProtoBuf.Serializers.IProtoSerializer.Write (System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.TagDecorator.Write (System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.ListDecorator.Write (System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.FieldDecorator.Write (System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Serializers.TypeSerializer.Write (System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.RuntimeTypeModel.Serialize (Int32 key, System.Object value, ProtoBuf.ProtoWriter dest) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.TypeModel.SerializeCore (ProtoBuf.ProtoWriter writer, System.Object value) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.TypeModel.Serialize (System.IO.Stream dest, System.Object value, ProtoBuf.SerializationContext context) [0x00000] in <filename unknown>:0 
    at ProtoBuf.Meta.TypeModel.Serialize (System.IO.Stream dest, System.Object value) [0x00000] in <filename unknown>:0 
    at RouterConfig.Save (System.String configFileName) [0x00000] in <filename unknown>:0 
    at RouterConfig.SaveRun() [0x00000] in <filename unknown>:0 
    at Console.Update() [0x00000] in <filename unknown>:0 

Вот мой класс:

using ProtoBuf; 

namespace ClassExtensions 
{ 
    //this class will allow use to Serialize a List<StringArray> 
    [ProtoContract] 
    public class StringArray 
    { 
     [ProtoMember(1)] public string[] items { get; set; } 
     public StringArray() {} 
     public StringArray(string[] c) {this.items = c;} 
     //conversion from string[] to StringArray 
     public static implicit operator StringArray(string[] a) 
     { return new StringArray(a); } 
     //conversion from StringArray to string[] 
     public static implicit operator string[](StringArray a) 
     { return a.items; } 
     //conversion from StringArray to string[] 


     public static string[][] ConvertToStringDoubleArray(List<StringArray> a) 
     { 
      List<string[]> b = new List<string[]>(); 
      foreach(StringArray c in a) 
       b.Add(c.items); 
      return b.ToArray(); 
     } 
     //used to allow indexing... 
     public string this[int i] 
     { 
      get { return this.items[i]; } 
      set { this.items[i] = value; } 
     } 
    } 
} 

Компиляция в DLL:

RuntimeTypeModel rModel = TypeModel.Create(); 

rModel.AllowParseableTypes = true; 
rModel.AutoAddMissingTypes = true; 

rModel.Add(typeof(StringArray), true); 

rModel.Compile("MySerializer", "MySerializer.dll"); 

Основываясь на моих исследованиях это должно работать. Я что-то упустил?

Answer 1

Выяснил это. Проблема в том, что, хотя я предварительно скомпилировал его, protobuf попытался скомпилировать снова. Добавление этой строки в код исправляет ее.

rModel.AutoCompile = false;