/// <summary>
/// Transforms open generic types to closed instantiation using context information.
/// As an example, if <c>B{T}</c> inherits from <c>A{T}</c>, running it with <c>B{C}</c> as context and <c>A{B.T}</c>
/// as type, it will return <c>A{C}</c>.
/// </summary>
public static TypeReference Process(TypeReference context, TypeReference type)
{
if (type is null)
{
return(null);
}
var parentContext = context;
GenericInstanceType genericInstanceTypeContext = null;
while (parentContext != null)
{
genericInstanceTypeContext = parentContext as GenericInstanceType;
if (genericInstanceTypeContext != null)
{
break;
}
parentContext = parentContext.Resolve().BaseType;
}
if (genericInstanceTypeContext is null || genericInstanceTypeContext.ContainsGenericParameter)
{
return(type);
}
// Build dictionary that will map generic type to their real implementation type
var genericTypeMapping = new Dictionary <TypeReference, TypeReference>();
while (parentContext != null)
{
var resolvedType = parentContext.Resolve();
for (int i = 0; i < resolvedType.GenericParameters.Count; ++i)
{
var genericParameter = parentContext.GetElementType().Resolve().GenericParameters[i];
genericTypeMapping.Add(genericParameter, genericInstanceTypeContext.GenericArguments[i]);
}
parentContext = parentContext.Resolve().BaseType;
if (parentContext is GenericInstanceType)
{
genericInstanceTypeContext = parentContext as GenericInstanceType;
}
}
var visitor = new ResolveGenericsVisitor(genericTypeMapping);
var result = visitor.VisitDynamic(type);
// Make sure type is closed now
if (result.ContainsGenericParameter)
{
throw new InvalidOperationException("Unsupported generic resolution.");
}
return(result);
}
public static void InflateGenericType(TypeDefinition genericType, TypeDefinition inflatedType, params TypeReference[] genericTypes)
{
// Base type
var genericMapping = new Dictionary <TypeReference, TypeReference>();
for (int i = 0; i < genericTypes.Length; ++i)
{
genericMapping.Add(genericType.GenericParameters[i], genericTypes[i]);
}
var resolveGenericsVisitor = new ResolveGenericsVisitor(genericMapping);
inflatedType.BaseType = inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(genericType.BaseType));
// Some stuff are not handled yet
if (genericType.HasNestedTypes)
{
throw new NotImplementedException();
}
foreach (var field in genericType.Fields)
{
var clonedField = new FieldDefinition(field.Name, field.Attributes, inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(field.FieldType)));
inflatedType.Fields.Add(clonedField);
}
foreach (var property in genericType.Properties)
{
if (property.HasParameters)
{
throw new NotImplementedException();
}
var clonedProperty = new PropertyDefinition(property.Name, property.Attributes, inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(property.PropertyType)))
{
HasThis = property.HasThis,
GetMethod = property.GetMethod != null?InflateMethod(inflatedType, property.GetMethod, resolveGenericsVisitor) : null,
SetMethod = property.SetMethod != null?InflateMethod(inflatedType, property.GetMethod, resolveGenericsVisitor) : null,
};
inflatedType.Properties.Add(clonedProperty);
}
// Clone methods
foreach (var method in genericType.Methods)
{
var clonedMethod = InflateMethod(inflatedType, method, resolveGenericsVisitor);
inflatedType.Methods.Add(clonedMethod);
}
}
public static IEnumerable <SerializableItem> GetSerializableItems(TypeReference type, bool serializeFields, ComplexTypeSerializerFlags?flagsOverride = null)
{
foreach (var serializableItemOriginal in GetSerializableItems(type.Resolve(), serializeFields, flagsOverride))
{
var serializableItem = serializableItemOriginal;
// Try to resolve open generic types with context to have closed types.
if (serializableItem.Type.ContainsGenericParameter())
{
serializableItem.Type = ResolveGenericsVisitor.Process(type, serializableItem.Type);
}
yield return(serializableItem);
}
}
/// <summary>
/// Generates serializer code using Cecil.
/// </summary>
/// <param name="registry"></param>
private static void GenerateSerializerCode(ComplexSerializerRegistry registry, out ObjectId serializationHash)
{
var hash = new ObjectIdBuilder();
// First, hash global binary format version, in case it gets bumped
hash.Write(DataSerializer.BinaryFormatVersion);
var assembly = registry.Assembly;
var strideCoreModule = assembly.GetStrideCoreModule();
var dataSerializerTypeRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Serialization.DataSerializer`1"));
var serializerSelectorType = strideCoreModule.GetType("Stride.Core.Serialization.SerializerSelector");
var serializerSelectorTypeRef = assembly.MainModule.ImportReference(serializerSelectorType);
var serializerSelectorGetSerializerRef = assembly.MainModule.ImportReference(serializerSelectorType.Methods.Single(x => x.Name == "GetSerializer" && x.Parameters.Count == 0 && x.GenericParameters.Count == 1));
var memberSerializerCreateRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Serialization.MemberSerializer`1").Methods.Single(x => x.Name == "Create"));
var dataSerializerSerializeMethod = dataSerializerTypeRef.Resolve().Methods.Single(x => x.Name == "Serialize" && (x.Attributes & MethodAttributes.Abstract) != 0);
var dataSerializerSerializeMethodRef = assembly.MainModule.ImportReference(dataSerializerSerializeMethod);
// Generate serializer code for each type (we generate code similar to ComplexClassSerializerGenerator.tt, see this file for reference)
foreach (var complexType in registry.Context.ComplexTypes)
{
var type = complexType.Key;
var serializerType = (TypeDefinition)complexType.Value.SerializerType;
var genericParameters = serializerType.GenericParameters.ToArray <TypeReference>();
var typeWithGenerics = type.MakeGenericType(genericParameters);
// Hash
hash.Write(typeWithGenerics.FullName);
TypeReference parentType = null;
FieldDefinition parentSerializerField = null;
if (complexType.Value.IsComplexSerializerProcessParentType)
{
parentType = ResolveGenericsVisitor.Process(serializerType, type.BaseType);
serializerType.Fields.Add(parentSerializerField = new FieldDefinition("parentSerializer", Mono.Cecil.FieldAttributes.Private, dataSerializerTypeRef.MakeGenericType(parentType)));
hash.Write("parent");
}
var serializableItems = ComplexSerializerRegistry.GetSerializableItems(type).ToArray();
var serializableItemInfos = new Dictionary <TypeReference, (FieldDefinition SerializerField, TypeReference Type)>(TypeReferenceEqualityComparer.Default);
var localsByTypes = new Dictionary <TypeReference, VariableDefinition>(TypeReferenceEqualityComparer.Default);
ResolveGenericsVisitor genericResolver = null;
if (type.HasGenericParameters)
{
var genericMapping = new Dictionary <TypeReference, TypeReference>();
for (int i = 0; i < type.GenericParameters.Count; i++)
{
genericMapping[type.GenericParameters[i]] = serializerType.GenericParameters[i];
}
genericResolver = new ResolveGenericsVisitor(genericMapping);
}
foreach (var serializableItem in serializableItems)
{
if (serializableItemInfos.ContainsKey(serializableItem.Type))
{
continue;
}
var serializableItemType = serializableItem.Type;
if (genericResolver != null)
{
serializableItemType = genericResolver.VisitDynamic(serializableItemType);
}
var fieldDefinition = new FieldDefinition($"{Utilities.BuildValidClassName(serializableItemType.FullName)}Serializer", Mono.Cecil.FieldAttributes.Private, dataSerializerTypeRef.MakeGenericType(serializableItemType));
serializableItemInfos.Add(serializableItem.Type, (fieldDefinition, serializableItemType));
serializerType.Fields.Add(fieldDefinition);
hash.Write(serializableItem.Type.FullName);
hash.Write(serializableItem.Name);
hash.Write(serializableItem.AssignBack);
}
// Add constructor (call parent constructor)
var ctor = new MethodDefinition(".ctor",
MethodAttributes.RTSpecialName | MethodAttributes.SpecialName | MethodAttributes.HideBySig |
MethodAttributes.Public, assembly.MainModule.TypeSystem.Void);
ctor.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
ctor.Body.Instructions.Add(Instruction.Create(OpCodes.Call, assembly.MainModule.ImportReference(serializerType.BaseType.Resolve().GetEmptyConstructor(true)).MakeGeneric(typeWithGenerics)));
ctor.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
serializerType.Methods.Add(ctor);
// Add Initialize method
var initialize = new MethodDefinition("Initialize", MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Virtual, assembly.MainModule.TypeSystem.Void);
initialize.Parameters.Add(new ParameterDefinition("serializerSelector", ParameterAttributes.None, serializerSelectorTypeRef));
if (complexType.Value.IsComplexSerializerProcessParentType)
{
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Callvirt, serializerSelectorGetSerializerRef.MakeGenericMethod(parentType)));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Stfld, parentSerializerField.MakeGeneric(genericParameters)));
}
foreach (var serializableItem in serializableItemInfos)
{
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldc_I4_1));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Call, memberSerializerCreateRef.MakeGeneric(serializableItem.Value.Type)));
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Stfld, serializableItem.Value.SerializerField.MakeGeneric(genericParameters)));
}
initialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
serializerType.Methods.Add(initialize);
// Add Serialize method
var serialize = new MethodDefinition("Serialize", MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Virtual, assembly.MainModule.TypeSystem.Void);
serialize.Parameters.Add(new ParameterDefinition("obj", ParameterAttributes.None, typeWithGenerics.MakeByReferenceType()));
// Copy other parameters from parent method
for (int i = 1; i < dataSerializerSerializeMethod.Parameters.Count; ++i)
{
var parentParameter = dataSerializerSerializeMethod.Parameters[i];
serialize.Parameters.Add(new ParameterDefinition(parentParameter.Name, ParameterAttributes.None, assembly.MainModule.ImportReference(parentParameter.ParameterType)));
}
if (complexType.Value.IsComplexSerializerProcessParentType)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldfld, parentSerializerField.MakeGeneric(genericParameters)));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_2));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_3));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Callvirt, dataSerializerSerializeMethodRef.MakeGeneric(parentType)));
}
if (serializableItems.Length > 0)
{
var blockStartInstructions = new[] { Instruction.Create(OpCodes.Nop), Instruction.Create(OpCodes.Nop) };
// Iterate over ArchiveMode
for (int i = 0; i < 2; ++i)
{
var archiveMode = i == 0 ? ArchiveMode.Serialize : ArchiveMode.Deserialize;
// Check mode
if (archiveMode == ArchiveMode.Serialize)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_2));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldc_I4, (int)archiveMode));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ceq));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Brfalse, blockStartInstructions[0]));
}
else
{
serialize.Body.Instructions.Add(blockStartInstructions[0]);
}
foreach (var serializableItem in serializableItems)
{
if (serializableItem.HasFixedAttribute)
{
throw new NotImplementedException("FixedBuffer attribute is not supported.");
}
var memberAssignBack = serializableItem.AssignBack;
var memberVariableName = (serializableItem.MemberInfo is PropertyDefinition || !memberAssignBack) ? ComplexSerializerRegistry.CreateMemberVariableName(serializableItem.MemberInfo) : null;
var serializableItemInfo = serializableItemInfos[serializableItem.Type];
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_0));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldfld, serializableItemInfo.SerializerField.MakeGeneric(genericParameters)));
var fieldReference = serializableItem.MemberInfo is FieldReference?assembly.MainModule.ImportReference((FieldReference)serializableItem.MemberInfo).MakeGeneric(genericParameters) : null;
if (memberVariableName != null)
{
// Use a temporary variable
if (!localsByTypes.TryGetValue(serializableItemInfo.Type, out var tempLocal))
{
tempLocal = new VariableDefinition(serializableItemInfo.Type);
localsByTypes.Add(serializableItemInfo.Type, tempLocal);
serialize.Body.Variables.Add(tempLocal);
serialize.Body.InitLocals = true;
}
if (!(archiveMode == ArchiveMode.Deserialize && memberAssignBack))
{
// obj.Member
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
if (!type.IsValueType)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldind_Ref));
}
if (serializableItem.MemberInfo is PropertyDefinition property)
{
var getMethod = property.Resolve().GetMethod;
serialize.Body.Instructions.Add(Instruction.Create(getMethod.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, assembly.MainModule.ImportReference(getMethod).MakeGeneric(genericParameters)));
}
else if (serializableItem.MemberInfo is FieldDefinition)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldfld, fieldReference));
}
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Stloc, tempLocal));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldloca, tempLocal));
}
else
{
// default(T)
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldloca, tempLocal));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Dup));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Initobj, serializableItemInfo.Type));
}
}
else
{
// Use object directly
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
if (!type.IsValueType)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldind_Ref));
}
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldflda, fieldReference));
}
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_2));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_3));
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Callvirt, dataSerializerSerializeMethodRef.MakeGeneric(serializableItemInfo.Type)));
if (archiveMode == ArchiveMode.Deserialize && memberVariableName != null && memberAssignBack)
{
// Need to copy back to object
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldarg_1));
if (!type.IsValueType)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldind_Ref));
}
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ldloc, localsByTypes[serializableItemInfo.Type]));
if (serializableItem.MemberInfo is PropertyDefinition property)
{
var setMethod = property.Resolve().SetMethod;
serialize.Body.Instructions.Add(Instruction.Create(setMethod.IsVirtual ? OpCodes.Callvirt : OpCodes.Call, assembly.MainModule.ImportReference(setMethod).MakeGeneric(genericParameters)));
}
else if (serializableItem.MemberInfo is FieldDefinition)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Stfld, fieldReference));
}
}
}
if (archiveMode == ArchiveMode.Serialize)
{
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Br, blockStartInstructions[1]));
}
}
serialize.Body.Instructions.Add(blockStartInstructions[1]);
}
serialize.Body.Instructions.Add(Instruction.Create(OpCodes.Ret));
serializerType.Methods.Add(serialize);
//assembly.MainModule.Types.Add(serializerType);
}
var mscorlibAssembly = CecilExtensions.FindCorlibAssembly(assembly);
var reflectionAssembly = CecilExtensions.FindReflectionAssembly(assembly);
// String
var stringType = mscorlibAssembly.MainModule.GetTypeResolved(typeof(string).FullName);
var stringTypeRef = assembly.MainModule.ImportReference(stringType);
// Type
var typeType = mscorlibAssembly.MainModule.GetTypeResolved(typeof(Type).FullName);
var typeTypeRef = assembly.MainModule.ImportReference(typeType);
var getTypeFromHandleMethod = typeType.Methods.First(x => x.Name == nameof(Type.GetTypeFromHandle));
var getTokenInfoExMethod = reflectionAssembly.MainModule.GetTypeResolved("System.Reflection.IntrospectionExtensions").Resolve().Methods.First(x => x.Name == nameof(IntrospectionExtensions.GetTypeInfo));
var typeInfoType = reflectionAssembly.MainModule.GetTypeResolved(typeof(TypeInfo).FullName);
// NOTE: TypeInfo.Assembly/Module could be on the type itself or on its parent MemberInfo depending on runtime
var getTypeInfoAssembly = typeInfoType.Properties.Concat(typeInfoType.BaseType.Resolve().Properties).First(x => x.Name == nameof(TypeInfo.Assembly)).GetMethod;
var getTypeInfoModule = typeInfoType.Properties.Concat(typeInfoType.BaseType.Resolve().Properties).First(x => x.Name == nameof(TypeInfo.Module)).GetMethod;
var typeHandleProperty = typeType.Properties.First(x => x.Name == nameof(Type.TypeHandle));
var getTypeHandleMethodRef = assembly.MainModule.ImportReference(typeHandleProperty.GetMethod);
// Generate code
var serializerFactoryType = new TypeDefinition("Stride.Core.DataSerializers",
Utilities.BuildValidClassName(assembly.Name.Name) + "SerializerFactory",
TypeAttributes.BeforeFieldInit | TypeAttributes.AnsiClass | TypeAttributes.AutoClass |
TypeAttributes.Public | TypeAttributes.Sealed | TypeAttributes.Abstract,
assembly.MainModule.TypeSystem.Object);
assembly.MainModule.Types.Add(serializerFactoryType);
var dataSerializerModeTypeRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Serialization.DataSerializerGenericMode"));
var dataSerializerGlobalAttribute = strideCoreModule.GetType("Stride.Core.Serialization.DataSerializerGlobalAttribute");
var dataSerializerGlobalCtorRef = assembly.MainModule.ImportReference(dataSerializerGlobalAttribute.GetConstructors().Single(x => !x.IsStatic && x.Parameters.Count == 5));
foreach (var profile in registry.Context.SerializableTypesProfiles)
{
foreach (var type in profile.Value.SerializableTypes.Where(x => x.Value.IsLocal))
{
// Generating: [DataSerializerGlobalAttribute(<#= type.Value.SerializerType != null ? $"typeof({type.Value.SerializerType.ConvertCSharp(false)})" : "null" #>, typeof(<#= type.Key.ConvertCSharp(false) #>), DataSerializerGenericMode.<#= type.Value.Mode.ToString() #>, <#=type.Value.Inherited ? "true" : "false"#>, <#=type.Value.ComplexSerializer ? "true" : "false"#>, Profile = "<#=profile.Key#>")]
serializerFactoryType.CustomAttributes.Add(new CustomAttribute(dataSerializerGlobalCtorRef)
{
ConstructorArguments =
{
new CustomAttributeArgument(typeTypeRef, type.Value.SerializerType != null ? assembly.MainModule.ImportReference(type.Value.SerializerType) : null),
new CustomAttributeArgument(typeTypeRef, assembly.MainModule.ImportReference(type.Key)),
new CustomAttributeArgument(dataSerializerModeTypeRef, type.Value.GenericsMode),
new CustomAttributeArgument(assembly.MainModule.TypeSystem.Boolean, type.Value.IsInherited),
new CustomAttributeArgument(assembly.MainModule.TypeSystem.Boolean, type.Value.IsComplexSerializer),
},
Properties =
{
new CustomAttributeNamedArgument("Profile", new CustomAttributeArgument(assembly.MainModule.TypeSystem.String, profile.Key))
},
});
}
foreach (var type in profile.Value.GenericSerializableTypes.Where(x => x.Value.IsLocal))
{
// Generating: [DataSerializerGlobalAttribute(<#= type.Value.SerializerType != null ? $"typeof({type.Value.SerializerType.ConvertCSharp(true)})" : "null" #>, typeof(<#= type.Key.ConvertCSharp(true) #>), DataSerializerGenericMode.<#= type.Value.Mode.ToString() #>, <#=type.Value.Inherited ? "true" : "false"#>, <#=type.Value.ComplexSerializer ? "true" : "false"#>, Profile = "<#=profile.Key#>")]
serializerFactoryType.CustomAttributes.Add(new CustomAttribute(dataSerializerGlobalCtorRef)
{
ConstructorArguments =
{
new CustomAttributeArgument(typeTypeRef, type.Value.SerializerType != null ? assembly.MainModule.ImportReference(type.Value.SerializerType) : null),
new CustomAttributeArgument(typeTypeRef, assembly.MainModule.ImportReference(type.Key)),
new CustomAttributeArgument(dataSerializerModeTypeRef, type.Value.GenericsMode),
new CustomAttributeArgument(assembly.MainModule.TypeSystem.Boolean, type.Value.IsInherited),
new CustomAttributeArgument(assembly.MainModule.TypeSystem.Boolean, type.Value.IsComplexSerializer),
},
Properties =
{
new CustomAttributeNamedArgument("Profile", new CustomAttributeArgument(assembly.MainModule.TypeSystem.String, profile.Key))
},
});
}
}
// Create Initialize method
var initializeMethod = new MethodDefinition("Initialize",
MethodAttributes.Assembly | MethodAttributes.HideBySig | MethodAttributes.Static,
assembly.MainModule.TypeSystem.Void);
serializerFactoryType.Methods.Add(initializeMethod);
// Make sure it is called at module startup
initializeMethod.AddModuleInitializer(-1000);
var initializeMethodIL = initializeMethod.Body.GetILProcessor();
// Generating: var assemblySerializers = new AssemblySerializers(typeof(<#=registry.ClassName#>).GetTypeInfo().Assembly);
var assemblySerializersType = strideCoreModule.GetType("Stride.Core.Serialization.AssemblySerializers");
var assemblySerializersGetDataContractAliasesRef = assembly.MainModule.ImportReference(assemblySerializersType.Properties.First(x => x.Name == "DataContractAliases").GetMethod);
var assemblySerializersGetDataContractAliasesAdd = assemblySerializersGetDataContractAliasesRef.ReturnType.Resolve().Methods.First(x => x.Name == "Add");
var dataContractAliasTypeRef = ((GenericInstanceType)assemblySerializersGetDataContractAliasesRef.ReturnType).GenericArguments[0];
var dataContractAliasTypeCtorRef = assembly.MainModule.ImportReference(dataContractAliasTypeRef.Resolve().GetConstructors().Single());
var assemblySerializersGetDataContractAliasesAddRef = assembly.MainModule.ImportReference(assemblySerializersGetDataContractAliasesAdd).MakeGeneric(dataContractAliasTypeRef);
initializeMethodIL.Emit(OpCodes.Ldtoken, serializerFactoryType);
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTokenInfoExMethod));
initializeMethodIL.Emit(OpCodes.Callvirt, assembly.MainModule.ImportReference(getTypeInfoAssembly));
initializeMethodIL.Emit(OpCodes.Newobj, assembly.MainModule.ImportReference(assemblySerializersType.Methods.Single(x => x.IsConstructor && x.Parameters.Count == 1)));
foreach (var alias in registry.Context.DataContractAliases)
{
initializeMethodIL.Emit(OpCodes.Dup);
// Generating: assemblySerializers.DataContractAliases.Add(new AssemblySerializers.DataContractAlias(@"<#= alias.Item1 #>", typeof(<#= alias.Item2.ConvertCSharp(true) #>), <#=alias.Item3 ? "true" : "false"#>));
initializeMethodIL.Emit(OpCodes.Call, assemblySerializersGetDataContractAliasesRef);
initializeMethodIL.Emit(OpCodes.Ldstr, alias.Item1);
initializeMethodIL.Emit(OpCodes.Ldtoken, assembly.MainModule.ImportReference(alias.Item2));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod));
initializeMethodIL.Emit(alias.Item3 ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0);
initializeMethodIL.Emit(OpCodes.Newobj, dataContractAliasTypeCtorRef);
initializeMethodIL.Emit(OpCodes.Call, assemblySerializersGetDataContractAliasesAddRef);
}
var assemblySerializersGetModulesRef = assembly.MainModule.ImportReference(assemblySerializersType.Properties.First(x => x.Name == "Modules").GetMethod);
var assemblySerializersGetModulesAdd = assemblySerializersGetModulesRef.ReturnType.Resolve().Methods.First(x => x.Name == "Add");
var moduleRef = ((GenericInstanceType)assemblySerializersGetModulesRef.ReturnType).GenericArguments[0];
var assemblySerializersGetModulesAddRef = assembly.MainModule.ImportReference(assemblySerializersGetModulesAdd).MakeGeneric(moduleRef);
foreach (var referencedAssemblySerializerFactoryType in registry.ReferencedAssemblySerializerFactoryTypes)
{
initializeMethodIL.Emit(OpCodes.Dup);
// Generating: assemblySerializers.Modules.Add(typeof(<#=referencedAssemblySerializerFactoryType.ConvertCSharp()#>).GetTypeInfo().Module);
initializeMethodIL.Emit(OpCodes.Call, assemblySerializersGetModulesRef);
initializeMethodIL.Emit(OpCodes.Ldtoken, assembly.MainModule.ImportReference(referencedAssemblySerializerFactoryType));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTokenInfoExMethod));
initializeMethodIL.Emit(OpCodes.Callvirt, assembly.MainModule.ImportReference(getTypeInfoModule));
initializeMethodIL.Emit(OpCodes.Call, assemblySerializersGetModulesAddRef);
}
var objectIdCtorRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Storage.ObjectId").GetConstructors().Single(x => x.Parameters.Count == 4));
var serializerEntryTypeCtorRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Serialization.AssemblySerializerEntry").GetConstructors().Single());
var assemblySerializersPerProfileType = strideCoreModule.GetType("Stride.Core.Serialization.AssemblySerializersPerProfile");
var assemblySerializersPerProfileTypeAddRef = assembly.MainModule.ImportReference(assemblySerializersPerProfileType.BaseType.Resolve().Methods.First(x => x.Name == "Add")).MakeGeneric(serializerEntryTypeCtorRef.DeclaringType);
var assemblySerializersPerProfileTypeCtorRef = assembly.MainModule.ImportReference(assemblySerializersPerProfileType.GetEmptyConstructor());
var assemblySerializersGetProfilesRef = assembly.MainModule.ImportReference(assemblySerializersType.Properties.First(x => x.Name == "Profiles").GetMethod);
var assemblySerializersGetProfilesSetItemRef = assembly.MainModule.ImportReference(assemblySerializersGetProfilesRef.ReturnType.Resolve().Methods.First(x => x.Name == "set_Item"))
.MakeGeneric(((GenericInstanceType)assemblySerializersGetProfilesRef.ReturnType).GenericArguments.ToArray());
var runtimeHelpersType = mscorlibAssembly.MainModule.GetTypeResolved(typeof(RuntimeHelpers).FullName);
var runClassConstructorMethod = assembly.MainModule.ImportReference(runtimeHelpersType.Methods.Single(x => x.IsPublic && x.Name == "RunClassConstructor" && x.Parameters.Count == 1 && x.Parameters[0].ParameterType.FullName == typeof(RuntimeTypeHandle).FullName));
foreach (var profile in registry.Context.SerializableTypesProfiles)
{
initializeMethodIL.Emit(OpCodes.Dup);
// Generating: var assemblySerializersProfile = new AssemblySerializersPerProfile();
// Generating: assemblySerializers.Profiles["<#=profile.Key#>"] = assemblySerializersProfile;
initializeMethodIL.Emit(OpCodes.Callvirt, assemblySerializersGetProfilesRef);
initializeMethodIL.Emit(OpCodes.Ldstr, profile.Key);
initializeMethodIL.Emit(OpCodes.Newobj, assemblySerializersPerProfileTypeCtorRef);
foreach (var type in profile.Value.SerializableTypes.Where(x => x.Value.IsLocal))
{
// Generating: assemblySerializersProfile.Add(new AssemblySerializerEntry(<#=type.Key.ConvertTypeId()#>, typeof(<#= type.Key.ConvertCSharp() #>), <# if (type.Value.SerializerType != null) { #>typeof(<#= type.Value.SerializerType.ConvertCSharp() #>)<# } else { #>null<# } #>));
initializeMethodIL.Emit(OpCodes.Dup);
var typeName = type.Key.ConvertToValidCSharp(false);
var typeId = ObjectId.FromBytes(Encoding.UTF8.GetBytes(typeName));
unsafe
{
var typeIdHash = (int *)&typeId;
for (int i = 0; i < ObjectId.HashSize / 4; ++i)
{
initializeMethodIL.Emit(OpCodes.Ldc_I4, typeIdHash[i]);
}
}
initializeMethodIL.Emit(OpCodes.Newobj, objectIdCtorRef);
initializeMethodIL.Emit(OpCodes.Ldtoken, assembly.MainModule.ImportReference(type.Key));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod));
if (type.Value.SerializerType != null)
{
initializeMethodIL.Emit(OpCodes.Ldtoken, assembly.MainModule.ImportReference(type.Value.SerializerType));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod));
}
else
{
initializeMethodIL.Emit(OpCodes.Ldnull);
}
initializeMethodIL.Emit(OpCodes.Newobj, serializerEntryTypeCtorRef);
initializeMethodIL.Emit(OpCodes.Callvirt, assemblySerializersPerProfileTypeAddRef);
if (type.Value.SerializerType?.Resolve()?.Methods.Any(x => x.IsConstructor && x.IsStatic) == true)
{
// Generating: System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor(typeof(<#=type.Value.SerializerType.ConvertCSharp()#>).TypeHandle);
initializeMethodIL.Append(Instruction.Create(OpCodes.Ldtoken, type.Value.SerializerType));
initializeMethodIL.Append(Instruction.Create(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod)));
initializeMethodIL.Append(Instruction.Create(OpCodes.Callvirt, getTypeHandleMethodRef));
initializeMethodIL.Append(Instruction.Create(OpCodes.Call, runClassConstructorMethod));
}
}
initializeMethodIL.Emit(OpCodes.Callvirt, assemblySerializersGetProfilesSetItemRef);
}
// Generating: DataSerializerFactory.RegisterSerializationAssembly(assemblySerializers);
var dataSerializerFactoryRegisterSerializationAssemblyMethodRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Serialization.DataSerializerFactory").Methods.Single(x => x.Name == "RegisterSerializationAssembly" && x.Parameters[0].ParameterType.FullName == assemblySerializersType.FullName));
initializeMethodIL.Emit(OpCodes.Call, dataSerializerFactoryRegisterSerializationAssemblyMethodRef);
// Generating: AssemblyRegistry.Register(typeof(<#=registry.ClassName#>).GetTypeInfo().Assembly, AssemblyCommonCategories.Engine);
initializeMethodIL.Emit(OpCodes.Ldtoken, serializerFactoryType);
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTypeFromHandleMethod));
initializeMethodIL.Emit(OpCodes.Call, assembly.MainModule.ImportReference(getTokenInfoExMethod));
initializeMethodIL.Emit(OpCodes.Callvirt, assembly.MainModule.ImportReference(getTypeInfoAssembly));
// create new[] { AssemblyCommonCategories.Engine }
initializeMethodIL.Emit(OpCodes.Ldc_I4_1);
initializeMethodIL.Emit(OpCodes.Newarr, assembly.MainModule.TypeSystem.String);
initializeMethodIL.Emit(OpCodes.Dup);
initializeMethodIL.Emit(OpCodes.Ldc_I4_0);
initializeMethodIL.Emit(OpCodes.Ldstr, Core.Reflection.AssemblyCommonCategories.Engine);
initializeMethodIL.Emit(OpCodes.Stelem_Ref);
var assemblyRegistryRegisterMethodRef = assembly.MainModule.ImportReference(strideCoreModule.GetType("Stride.Core.Reflection.AssemblyRegistry").Methods.Single(x => x.Name == "Register" && x.Parameters[1].ParameterType.IsArray));
initializeMethodIL.Emit(OpCodes.Call, assemblyRegistryRegisterMethodRef);
initializeMethodIL.Emit(OpCodes.Ret);
// Add AssemblySerializerFactoryAttribute
var assemblySerializerFactoryAttribute = strideCoreModule.GetType("Stride.Core.Serialization.AssemblySerializerFactoryAttribute");
assembly.CustomAttributes.Add(new CustomAttribute(assembly.MainModule.ImportReference(assemblySerializerFactoryAttribute.GetEmptyConstructor()))
{
Fields =
{
new CustomAttributeNamedArgument("Type", new CustomAttributeArgument(typeTypeRef, serializerFactoryType)),
}
});
serializationHash = hash.ComputeHash();
}
private static MethodDefinition InflateMethod(TypeDefinition inflatedType, MethodDefinition method, ResolveGenericsVisitor resolveGenericsVisitor)
{
var clonedMethod = new MethodDefinition(method.Name, method.Attributes, inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(method.ReturnType)));
clonedMethod.Parameters.AddRange(
method.Parameters.Select(x => new ParameterDefinition(x.Name, x.Attributes, inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(x.ParameterType)))));
if (method.Body != null)
{
clonedMethod.Body.Variables.AddRange(
method.Body.Variables.Select(x => new VariableDefinition(inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(x.VariableType)))));
clonedMethod.Body.InitLocals = method.Body.InitLocals;
var mappedInstructions = new Dictionary <Instruction, Instruction>();
foreach (var instruction in method.Body.Instructions)
{
// Create nop instructions to start with (if we use actual opcode, it would do an operand check)
var mappedInstruction = Instruction.Create(OpCodes.Nop);
mappedInstruction.OpCode = instruction.OpCode;
mappedInstruction.Operand = instruction.Operand;
mappedInstructions[instruction] = mappedInstruction;
}
foreach (var instruction in method.Body.Instructions)
{
// Fix operand
var mappedInstruction = mappedInstructions[instruction];
if (mappedInstruction.Operand is Instruction)
{
mappedInstruction.Operand = mappedInstructions[(Instruction)instruction.Operand];
}
else if (mappedInstruction.Operand is ParameterDefinition)
{
var parameterIndex = method.Parameters.IndexOf((ParameterDefinition)instruction.Operand);
mappedInstruction.Operand = clonedMethod.Parameters[parameterIndex];
}
else if (mappedInstruction.Operand is VariableDefinition)
{
var variableIndex = method.Body.Variables.IndexOf((VariableDefinition)instruction.Operand);
mappedInstruction.Operand = clonedMethod.Body.Variables[variableIndex];
}
else if (mappedInstruction.Operand is TypeReference)
{
var newTypeReference = resolveGenericsVisitor.VisitDynamic((TypeReference)mappedInstruction.Operand);
newTypeReference = inflatedType.Module.ImportReference(newTypeReference);
mappedInstruction.Operand = newTypeReference;
}
else if (mappedInstruction.Operand is FieldReference)
{
var fieldReference = (FieldReference)mappedInstruction.Operand;
var newFieldReference = new FieldReference(fieldReference.Name,
inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(fieldReference.FieldType)),
inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(fieldReference.DeclaringType)));
mappedInstruction.Operand = newFieldReference;
}
else if (mappedInstruction.Operand is MethodReference)
{
var methodReference = (MethodReference)mappedInstruction.Operand;
var genericInstanceMethod = methodReference as GenericInstanceMethod;
if (genericInstanceMethod != null)
{
methodReference = genericInstanceMethod.ElementMethod;
}
methodReference = methodReference.GetElementMethod();
var newMethodReference = new MethodReference(methodReference.Name,
inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(methodReference.ReturnType)),
inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(methodReference.DeclaringType)))
{
HasThis = methodReference.HasThis,
ExplicitThis = methodReference.ExplicitThis,
CallingConvention = methodReference.CallingConvention,
};
foreach (var parameter in methodReference.Parameters)
{
newMethodReference.Parameters.Add(new ParameterDefinition(inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(parameter.ParameterType))));
}
if (methodReference.HasGenericParameters)
{
CopyGenericParameters(methodReference, newMethodReference);
}
if (genericInstanceMethod != null)
{
newMethodReference = newMethodReference.MakeGenericMethod(genericInstanceMethod.GenericArguments.Select(x => inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(x))).ToArray());
}
mappedInstruction.Operand = newMethodReference;
}
else if (mappedInstruction.Operand is Mono.Cecil.CallSite)
{
var callSite = (Mono.Cecil.CallSite)mappedInstruction.Operand;
var newCallSite = new Mono.Cecil.CallSite(inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(callSite.ReturnType)))
{
HasThis = callSite.HasThis,
ExplicitThis = callSite.ExplicitThis,
CallingConvention = callSite.CallingConvention,
};
foreach (var parameter in callSite.Parameters)
{
newCallSite.Parameters.Add(new ParameterDefinition(inflatedType.Module.ImportReference(resolveGenericsVisitor.VisitDynamic(parameter.ParameterType))));
}
mappedInstruction.Operand = newCallSite;
}
else if (mappedInstruction.Operand is Instruction[])
{
// Not used in UpdatableProperty<T>
throw new NotImplementedException();
}
}
clonedMethod.Body.Instructions.AddRange(method.Body.Instructions.Select(x => mappedInstructions[x]));
}
return(clonedMethod);
}
public void ProcessSerializers(CecilSerializerContext context)
{
var references = new HashSet <AssemblyDefinition>();
EnumerateReferences(references, context.Assembly);
var coreAssembly = CecilExtensions.FindCorlibAssembly(context.Assembly);
// Only process assemblies depending on Stride.Engine
if (!references.Any(x => x.Name.Name == "Stride.Engine"))
{
// Make sure Stride.Engine.Serializers can access everything internally
var internalsVisibleToAttribute = coreAssembly.MainModule.GetTypeResolved(typeof(InternalsVisibleToAttribute).FullName);
var serializationAssemblyName = "Stride.Engine.Serializers";
// Add [InteralsVisibleTo] attribute
var internalsVisibleToAttributeCtor = context.Assembly.MainModule.ImportReference(internalsVisibleToAttribute.GetConstructors().Single());
var internalsVisibleAttribute = new CustomAttribute(internalsVisibleToAttributeCtor)
{
ConstructorArguments =
{
new CustomAttributeArgument(context.Assembly.MainModule.ImportReference(context.Assembly.MainModule.TypeSystem.String), serializationAssemblyName)
}
};
context.Assembly.CustomAttributes.Add(internalsVisibleAttribute);
return;
}
var strideEngineAssembly = context.Assembly.Name.Name == "Stride.Engine"
? context.Assembly
: context.Assembly.MainModule.AssemblyResolver.Resolve(new AssemblyNameReference("Stride.Engine", null));
var strideEngineModule = strideEngineAssembly.MainModule;
// Generate IL for Stride.Core
if (context.Assembly.Name.Name == "Stride.Engine")
{
ProcessStrideEngineAssembly(context);
}
var updatableFieldGenericType = strideEngineModule.GetType("Stride.Updater.UpdatableField`1");
updatableFieldGenericCtor = updatableFieldGenericType.Methods.First(x => x.IsConstructor && !x.IsStatic);
updatablePropertyGenericType = strideEngineModule.GetType("Stride.Updater.UpdatableProperty`1");
updatablePropertyGenericCtor = updatablePropertyGenericType.Methods.First(x => x.IsConstructor && !x.IsStatic);
var updatablePropertyObjectGenericType = strideEngineModule.GetType("Stride.Updater.UpdatablePropertyObject`1");
updatablePropertyObjectGenericCtor = updatablePropertyObjectGenericType.Methods.First(x => x.IsConstructor && !x.IsStatic);
var updatableListUpdateResolverGenericType = strideEngineModule.GetType("Stride.Updater.ListUpdateResolver`1");
updatableListUpdateResolverGenericCtor = updatableListUpdateResolverGenericType.Methods.First(x => x.IsConstructor && !x.IsStatic);
var updatableArrayUpdateResolverGenericType = strideEngineModule.GetType("Stride.Updater.ArrayUpdateResolver`1");
updatableArrayUpdateResolverGenericCtor = updatableArrayUpdateResolverGenericType.Methods.First(x => x.IsConstructor && !x.IsStatic);
var parameterCollectionResolver = strideEngineModule.GetType("Stride.Engine.Design.ParameterCollectionResolver");
parameterCollectionResolverInstantiateValueAccessor = parameterCollectionResolver.Methods.First(x => x.Name == "InstantiateValueAccessor");
var registerMemberMethod = strideEngineModule.GetType("Stride.Updater.UpdateEngine").Methods.First(x => x.Name == "RegisterMember");
updateEngineRegisterMemberMethod = context.Assembly.MainModule.ImportReference(registerMemberMethod);
var registerMemberResolverMethod = strideEngineModule.GetType("Stride.Updater.UpdateEngine").Methods.First(x => x.Name == "RegisterMemberResolver");
//pclVisitor.VisitMethod(registerMemberResolverMethod);
updateEngineRegisterMemberResolverMethod = context.Assembly.MainModule.ImportReference(registerMemberResolverMethod);
var typeType = coreAssembly.MainModule.GetTypeResolved(typeof(Type).FullName);
getTypeFromHandleMethod = context.Assembly.MainModule.ImportReference(typeType.Methods.First(x => x.Name == "GetTypeFromHandle"));
var mainPrepareMethod = CreateUpdateMethod(context.Assembly);
// Emit serialization code for all the types we care about
var processedTypes = new HashSet <TypeDefinition>(TypeReferenceEqualityComparer.Default);
foreach (var serializableType in context.SerializableTypesProfiles.SelectMany(x => x.Value.SerializableTypes))
{
// Special case: when processing Stride.Engine assembly, we automatically add dependent assemblies types too
if (!serializableType.Value.Local && strideEngineAssembly != context.Assembly)
{
continue;
}
var typeDefinition = serializableType.Key as TypeDefinition;
if (typeDefinition == null)
{
continue;
}
// Ignore already processed types
if (!processedTypes.Add(typeDefinition))
{
continue;
}
try
{
ProcessType(context, context.Assembly.MainModule.ImportReference(typeDefinition), mainPrepareMethod);
}
catch (Exception e)
{
throw new InvalidOperationException(string.Format("Error when generating update engine code for {0}", typeDefinition), e);
}
}
// Force generic instantiations
var il = mainPrepareMethod.Body.GetILProcessor();
foreach (var serializableType in context.SerializableTypesProfiles.SelectMany(x => x.Value.SerializableTypes).ToArray())
{
// Special case: when processing Stride.Engine assembly, we automatically add dependent assemblies types too
if (!serializableType.Value.Local && strideEngineAssembly != context.Assembly)
{
continue;
}
// Try to find if original method definition was generated
var typeDefinition = serializableType.Key.Resolve();
// If using List<T>, register this type in UpdateEngine
var parentTypeDefinition = typeDefinition;
while (parentTypeDefinition != null)
{
var listInterfaceType = parentTypeDefinition.Interfaces.Select(x => x.InterfaceType).OfType <GenericInstanceType>().FirstOrDefault(x => x.ElementType.FullName == typeof(IList <>).FullName);
if (listInterfaceType != null)
{
//call Updater.UpdateEngine.RegisterMemberResolver(new Updater.ListUpdateResolver<T>());
var elementType = ResolveGenericsVisitor.Process(serializableType.Key, listInterfaceType.GenericArguments[0]);
il.Emit(OpCodes.Newobj, context.Assembly.MainModule.ImportReference(updatableListUpdateResolverGenericCtor).MakeGeneric(context.Assembly.MainModule.ImportReference(elementType)));
il.Emit(OpCodes.Call, updateEngineRegisterMemberResolverMethod);
}
parentTypeDefinition = parentTypeDefinition.BaseType?.Resolve();
}
// Same for arrays
var arrayType = serializableType.Key as ArrayType;
if (arrayType != null)
{
//call Updater.UpdateEngine.RegisterMemberResolver(new Updater.ArrayUpdateResolver<T>());
var elementType = ResolveGenericsVisitor.Process(serializableType.Key, arrayType.ElementType);
il.Emit(OpCodes.Newobj, context.Assembly.MainModule.ImportReference(updatableArrayUpdateResolverGenericCtor).MakeGeneric(context.Assembly.MainModule.ImportReference(elementType)));
il.Emit(OpCodes.Call, updateEngineRegisterMemberResolverMethod);
}
// Generic instantiation for AOT platforms
if (context.Platform == Core.PlatformType.iOS && serializableType.Key.Name == "ValueParameterKey`1")
{
var keyType = ((GenericInstanceType)serializableType.Key).GenericArguments[0];
il.Emit(OpCodes.Call, context.Assembly.MainModule.ImportReference(parameterCollectionResolverInstantiateValueAccessor).MakeGenericMethod(context.Assembly.MainModule.ImportReference(keyType)));
}
var genericInstanceType = serializableType.Key as GenericInstanceType;
if (genericInstanceType != null)
{
var expectedUpdateMethodName = ComputeUpdateMethodName(typeDefinition);
var updateMethod = GetOrCreateUpdateType(typeDefinition.Module.Assembly, false)?.Methods.FirstOrDefault(x => x.Name == expectedUpdateMethodName && x.HasGenericParameters && x.GenericParameters.Count == genericInstanceType.GenericParameters.Count);
// If nothing was found in main assembly, also look in Stride.Engine assembly, just in case (it might defines some shared/corlib types -- currently not the case)
if (updateMethod == null)
{
updateMethod = GetOrCreateUpdateType(strideEngineAssembly, false)?.Methods.FirstOrDefault(x => x.Name == expectedUpdateMethodName && x.HasGenericParameters && x.GenericParameters.Count == genericInstanceType.GenericParameters.Count);
}
if (updateMethod != null)
{
// Emit call to update engine setup method with generic arguments of current type
il.Emit(OpCodes.Call, context.Assembly.MainModule.ImportReference(updateMethod)
.MakeGenericMethod(genericInstanceType.GenericArguments
.Select(context.Assembly.MainModule.ImportReference)
.ToArray()));
}
}
}
il.Emit(OpCodes.Ret);
}
public void ProcessType(CecilSerializerContext context, TypeReference type, MethodDefinition updateMainMethod)
{
var typeDefinition = type.Resolve();
// No need to process enum
if (typeDefinition.IsEnum)
{
return;
}
var updateCurrentMethod = updateMainMethod;
ResolveGenericsVisitor replaceGenericsVisitor = null;
if (typeDefinition.HasGenericParameters)
{
// Make a prepare method for just this object since it might need multiple instantiation
updateCurrentMethod = new MethodDefinition(ComputeUpdateMethodName(typeDefinition), MethodAttributes.HideBySig | MethodAttributes.Public | MethodAttributes.Static, context.Assembly.MainModule.TypeSystem.Void);
var genericsMapping = new Dictionary <TypeReference, TypeReference>();
foreach (var genericParameter in typeDefinition.GenericParameters)
{
var genericParameterCopy = new GenericParameter(genericParameter.Name, updateCurrentMethod)
{
Attributes = genericParameter.Attributes,
};
foreach (var constraint in genericParameter.Constraints)
{
genericParameterCopy.Constraints.Add(new GenericParameterConstraint(context.Assembly.MainModule.ImportReference(constraint.ConstraintType)));
}
updateCurrentMethod.GenericParameters.Add(genericParameterCopy);
genericsMapping[genericParameter] = genericParameterCopy;
}
replaceGenericsVisitor = new ResolveGenericsVisitor(genericsMapping);
updateMainMethod.DeclaringType.Methods.Add(updateCurrentMethod);
}
var il = updateCurrentMethod.Body.GetILProcessor();
var typeIsValueType = type.IsResolvedValueType();
var emptyObjectField = typeIsValueType ? null : updateMainMethod.DeclaringType.Fields.FirstOrDefault(x => x.Name == "emptyObject");
VariableDefinition emptyStruct = null;
// Note: forcing fields and properties to be processed in all cases
foreach (var serializableItem in ComplexSerializerRegistry.GetSerializableItems(type, true, ComplexTypeSerializerFlags.SerializePublicFields | ComplexTypeSerializerFlags.SerializePublicProperties | ComplexTypeSerializerFlags.Updatable))
{
if (serializableItem.MemberInfo is FieldReference fieldReference)
{
var field = fieldReference.Resolve();
// First time it is needed, let's create empty object in the class (var emptyObject = new object()) or empty local struct in the method
if (typeIsValueType)
{
if (emptyStruct == null)
{
emptyStruct = new VariableDefinition(type);
updateMainMethod.Body.Variables.Add(emptyStruct);
}
}
else
{
if (emptyObjectField == null)
{
emptyObjectField = new FieldDefinition("emptyObject", FieldAttributes.Static | FieldAttributes.Private, context.Assembly.MainModule.TypeSystem.Object);
// Create static ctor that will initialize this object
var staticConstructor = new MethodDefinition(".cctor",
MethodAttributes.Private | MethodAttributes.HideBySig | MethodAttributes.Static | MethodAttributes.SpecialName | MethodAttributes.RTSpecialName,
context.Assembly.MainModule.TypeSystem.Void);
var staticConstructorIL = staticConstructor.Body.GetILProcessor();
staticConstructorIL.Emit(OpCodes.Newobj, context.Assembly.MainModule.ImportReference(emptyObjectField.FieldType.Resolve().GetConstructors().Single(x => !x.IsStatic && !x.HasParameters)));
staticConstructorIL.Emit(OpCodes.Stsfld, emptyObjectField);
staticConstructorIL.Emit(OpCodes.Ret);
updateMainMethod.DeclaringType.Fields.Add(emptyObjectField);
updateMainMethod.DeclaringType.Methods.Add(staticConstructor);
}
}
il.Emit(OpCodes.Ldtoken, type);
il.Emit(OpCodes.Call, getTypeFromHandleMethod);
il.Emit(OpCodes.Ldstr, field.Name);
if (typeIsValueType)
{
il.Emit(OpCodes.Ldloca, emptyStruct);
}
else
{
il.Emit(OpCodes.Ldsfld, emptyObjectField);
}
il.Emit(OpCodes.Ldflda, context.Assembly.MainModule.ImportReference(fieldReference));
il.Emit(OpCodes.Conv_I);
if (typeIsValueType)
{
il.Emit(OpCodes.Ldloca, emptyStruct);
}
else
{
il.Emit(OpCodes.Ldsfld, emptyObjectField);
}
il.Emit(OpCodes.Conv_I);
il.Emit(OpCodes.Sub);
il.Emit(OpCodes.Conv_I4);
var fieldType = context.Assembly.MainModule.ImportReference(replaceGenericsVisitor != null ? replaceGenericsVisitor.VisitDynamic(field.FieldType) : field.FieldType);
il.Emit(OpCodes.Newobj, context.Assembly.MainModule.ImportReference(updatableFieldGenericCtor).MakeGeneric(fieldType));
il.Emit(OpCodes.Call, updateEngineRegisterMemberMethod);
}
var propertyReference = serializableItem.MemberInfo as PropertyReference;
if (propertyReference != null)
{
var property = propertyReference.Resolve();
var propertyGetMethod = context.Assembly.MainModule.ImportReference(property.GetMethod).MakeGeneric(updateCurrentMethod.GenericParameters.ToArray());
il.Emit(OpCodes.Ldtoken, type);
il.Emit(OpCodes.Call, getTypeFromHandleMethod);
il.Emit(OpCodes.Ldstr, property.Name);
// If it's a virtual or interface call, we need to create a dispatcher using ldvirtftn
if (property.GetMethod.IsVirtual)
{
propertyGetMethod = CreateDispatcher(context.Assembly, propertyGetMethod);
}
il.Emit(OpCodes.Ldftn, propertyGetMethod);
// Set whether getter method uses a VirtualDispatch (static call) or instance call
il.Emit(property.GetMethod.IsVirtual ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0);
// Only uses setter if it exists and it's public
if (property.SetMethod != null && property.SetMethod.IsPublic)
{
var propertySetMethod = context.Assembly.MainModule.ImportReference(property.SetMethod).MakeGeneric(updateCurrentMethod.GenericParameters.ToArray());
if (property.SetMethod.IsVirtual)
{
propertySetMethod = CreateDispatcher(context.Assembly, propertySetMethod);
}
il.Emit(OpCodes.Ldftn, propertySetMethod);
}
else
{
// 0 (native int)
il.Emit(OpCodes.Ldc_I4_0);
il.Emit(OpCodes.Conv_I);
}
// Set whether setter method uses a VirtualDispatch (static call) or instance call
il.Emit((property.SetMethod?.IsVirtual ?? false) ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0);
var propertyType = context.Assembly.MainModule.ImportReference(replaceGenericsVisitor != null ? replaceGenericsVisitor.VisitDynamic(property.PropertyType) : property.PropertyType);
var updatablePropertyInflatedCtor = GetOrCreateUpdatablePropertyCtor(context.Assembly, propertyType);
il.Emit(OpCodes.Newobj, updatablePropertyInflatedCtor);
il.Emit(OpCodes.Call, updateEngineRegisterMemberMethod);
}
}
if (updateCurrentMethod != updateMainMethod)
{
// If we have a local method, close it
il.Emit(OpCodes.Ret);
// Also call it from main method if it was a closed generic instantiation
if (type is GenericInstanceType)
{
il = updateMainMethod.Body.GetILProcessor();
il.Emit(OpCodes.Call, updateCurrentMethod.MakeGeneric(((GenericInstanceType)type).GenericArguments.Select(context.Assembly.MainModule.ImportReference).ToArray()));
}
}
}