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DataContractSerialization doesn't work with TrimMode - link
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DataContractSerialization has some Reflection "shim" methods that the ILLinker can't see through. This causes critical methods to be trimmed and applications to fail. These methods were put in place in .NET Core 1.0 when the full Reflection API wasn't available.

The fix is to remove these "shim" Reflection APIs and use Reflection directly.

Fix dotnet#41525
Fix dotnet#42754
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@eerhardt
eerhardt committed Sep 28, 2020
1 parent d4487b8 commit 0fe1b59
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Showing 16 changed files with 121 additions and 97 deletions.
6 changes: 3 additions & 3 deletions ...m.Private.DataContractSerialization/src/System/Runtime/Serialization/ClassDataContract.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -388,7 +388,7 @@ internal static bool IsNonAttributedTypeValidForSerialization(Type type)
else
{
return (type.IsVisible &&
type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public, Array.Empty<Type>()) != null);
type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public, null, Array.Empty<Type>(), null) != null);
}
}

Expand Down Expand Up @@ -1368,7 +1368,7 @@ private void SetKeyValuePairAdapterFlags(Type type)
{
_isKeyValuePairAdapter = true;
_keyValuePairGenericArguments = type.GetGenericArguments();
_keyValuePairCtorInfo = type.GetConstructor(Globals.ScanAllMembers, new Type[] { Globals.TypeOfKeyValuePair.MakeGenericType(_keyValuePairGenericArguments) });
_keyValuePairCtorInfo = type.GetConstructor(Globals.ScanAllMembers, null, new Type[] { Globals.TypeOfKeyValuePair.MakeGenericType(_keyValuePairGenericArguments) }, null);
_getKeyValuePairMethodInfo = type.GetMethod("GetKeyValuePair", Globals.ScanAllMembers)!;
}
}
Expand Down Expand Up @@ -1425,7 +1425,7 @@ internal MethodInfo? GetKeyValuePairMethodInfo
if (type.IsValueType)
return null;

ConstructorInfo? ctor = type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public, Array.Empty<Type>());
ConstructorInfo? ctor = type.GetConstructor(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public, null, Array.Empty<Type>(), null);
if (ctor == null)
throw System.Runtime.Serialization.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidDataContractException(SR.Format(SR.NonAttributedSerializableTypesMustHaveDefaultConstructor, DataContract.GetClrTypeFullName(type))));

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2 changes: 1 addition & 1 deletion ...ystem.Private.DataContractSerialization/src/System/Runtime/Serialization/CodeGenerator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ private static MethodInfo ObjectEquals
{
if (s_objectEquals == null)
{
s_objectEquals = Globals.TypeOfObject.GetMethod("Equals", BindingFlags.Public | BindingFlags.Static);
s_objectEquals = typeof(object).GetMethod("Equals", BindingFlags.Public | BindingFlags.Static);
Debug.Assert(s_objectEquals != null);
}
return s_objectEquals;
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6 changes: 3 additions & 3 deletions ...vate.DataContractSerialization/src/System/Runtime/Serialization/CollectionDataContract.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -883,7 +883,7 @@ internal Type GetCollectionElementType()
enumeratorType = GetEnumeratorMethod.ReturnType;
}

MethodInfo? getCurrentMethod = enumeratorType.GetMethod(Globals.GetCurrentMethodName, BindingFlags.Instance | BindingFlags.Public, Array.Empty<Type>());
MethodInfo? getCurrentMethod = enumeratorType.GetMethod(Globals.GetCurrentMethodName, BindingFlags.Instance | BindingFlags.Public, null, Array.Empty<Type>(), null);
if (getCurrentMethod == null)
{
if (enumeratorType.IsInterface)
Expand Down Expand Up @@ -1134,7 +1134,7 @@ private static bool IsCollectionOrTryCreate(Type type, bool tryCreate, out DataC
}
}

getEnumeratorMethod = Globals.TypeOfIEnumerable.GetMethod(Globals.GetEnumeratorMethodName)!;
getEnumeratorMethod = typeof(IEnumerable).GetMethod(Globals.GetEnumeratorMethodName)!;
}
if (tryCreate)
dataContract = new CollectionDataContract(type, (CollectionKind)(i + 1), itemType, getEnumeratorMethod, addMethod, null/*defaultCtor*/);
Expand Down Expand Up @@ -1364,7 +1364,7 @@ private static void GetCollectionMethods(Type type, Type interfaceType, Type[] a

if (getEnumeratorMethod == null)
{
getEnumeratorMethod = type.GetMethod(Globals.GetEnumeratorMethodName, BindingFlags.Instance | BindingFlags.Public, Array.Empty<Type>());
getEnumeratorMethod = type.GetMethod(Globals.GetEnumeratorMethodName, BindingFlags.Instance | BindingFlags.Public, null, Array.Empty<Type>(), null);
if (getEnumeratorMethod == null || !Globals.TypeOfIEnumerator.IsAssignableFrom(getEnumeratorMethod.ReturnType))
{
Type? ienumerableInterface = interfaceType.GetInterfaces().Where(t => t.FullName!.StartsWith("System.Collections.Generic.IEnumerable")).FirstOrDefault();
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4 changes: 2 additions & 2 deletions ...System.Private.DataContractSerialization/src/System/Runtime/Serialization/DataContract.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1125,7 +1125,7 @@ internal MethodInfo? ParseMethod
{
if (!_parseMethodSet)
{
MethodInfo? method = UnderlyingType.GetMethod(Globals.ParseMethodName, BindingFlags.Public | BindingFlags.Static, new Type[] { typeof(string) });
MethodInfo? method = UnderlyingType.GetMethod(Globals.ParseMethodName, BindingFlags.Public | BindingFlags.Static, null, new Type[] { typeof(string) }, null);

if (method != null && method.ReturnType == UnderlyingType)
{
Expand Down Expand Up @@ -1978,7 +1978,7 @@ private static void ImportKnownTypeAttributes(Type? type, Dictionary<Type, Type>
if (methodName.Length == 0)
DataContract.ThrowInvalidDataContractException(SR.Format(SR.KnownTypeAttributeEmptyString, DataContract.GetClrTypeFullName(type)), type);

MethodInfo? method = type.GetMethod(methodName, BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public, Array.Empty<Type>());
MethodInfo? method = type.GetMethod(methodName, BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public, null, Array.Empty<Type>(), null);
if (method == null)
DataContract.ThrowInvalidDataContractException(SR.Format(SR.KnownTypeAttributeUnknownMethod, methodName, DataContract.GetClrTypeFullName(type)), type);

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40 changes: 0 additions & 40 deletions ...ries/System.Private.DataContractSerialization/src/System/Runtime/Serialization/Globals.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -785,46 +785,6 @@ internal static Uri DataContractXsdBaseNamespaceUri
}
}

#region Contract compliance for System.Type

private static bool TypeSequenceEqual(Type[] seq1, Type[] seq2)
{
if (seq1 == null || seq2 == null || seq1.Length != seq2.Length)
return false;
for (int i = 0; i < seq1.Length; i++)
{
if (!seq1[i].Equals(seq2[i]) && !seq1[i].IsAssignableFrom(seq2[i]))
return false;
}
return true;
}

private static MethodBase? FilterMethodBases(MethodBase[]? methodBases, Type[] parameterTypes, string methodName)
{
if (methodBases == null || string.IsNullOrEmpty(methodName))
return null;

var matchedMethods = methodBases.Where(method => method.Name.Equals(methodName));
matchedMethods = matchedMethods.Where(method => TypeSequenceEqual(method.GetParameters().Select(param => param.ParameterType).ToArray(), parameterTypes));
return matchedMethods.FirstOrDefault();
}

internal static ConstructorInfo? GetConstructor(this Type type, BindingFlags bindingFlags, Type[] parameterTypes)
{
ConstructorInfo[] constructorInfos = type.GetConstructors(bindingFlags);
var constructorInfo = FilterMethodBases(constructorInfos.Cast<MethodBase>().ToArray()!, parameterTypes, ".ctor");
return constructorInfo != null ? (ConstructorInfo)constructorInfo : null;
}

internal static MethodInfo? GetMethod(this Type type, string methodName, BindingFlags bindingFlags, Type[] parameterTypes)
{
var methodInfos = type.GetMethods(bindingFlags);
var methodInfo = FilterMethodBases(methodInfos.Cast<MethodBase>().ToArray()!, parameterTypes, methodName);
return methodInfo != null ? (MethodInfo)methodInfo : null;
}

#endregion

private static readonly Type? s_typeOfScriptObject;

internal static ClassDataContract CreateScriptObjectClassDataContract()
Expand Down
18 changes: 9 additions & 9 deletions ...ContractSerialization/src/System/Runtime/Serialization/Json/JsonFormatGeneratorStatics.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -167,7 +167,7 @@ public static MethodInfo GetUninitializedObjectMethod
{
if (s_getUninitializedObjectMethod == null)
{
s_getUninitializedObjectMethod = typeof(XmlFormatReaderGenerator).GetMethod("UnsafeGetUninitializedObject", Globals.ScanAllMembers, new Type[] { typeof(Type) });
s_getUninitializedObjectMethod = typeof(XmlFormatReaderGenerator).GetMethod("UnsafeGetUninitializedObject", Globals.ScanAllMembers, null, new Type[] { typeof(Type) }, null);
Debug.Assert(s_getUninitializedObjectMethod != null);
}
return s_getUninitializedObjectMethod;
Expand All @@ -180,7 +180,7 @@ public static MethodInfo IsStartElementMethod0
{
if (s_isStartElementMethod0 == null)
{
s_isStartElementMethod0 = typeof(XmlReaderDelegator).GetMethod("IsStartElement", Globals.ScanAllMembers, Array.Empty<Type>());
s_isStartElementMethod0 = typeof(XmlReaderDelegator).GetMethod("IsStartElement", Globals.ScanAllMembers, null, Array.Empty<Type>(), null);
Debug.Assert(s_isStartElementMethod0 != null);
}
return s_isStartElementMethod0;
Expand All @@ -192,7 +192,7 @@ public static MethodInfo IsStartElementMethod2
{
if (s_isStartElementMethod2 == null)
{
s_isStartElementMethod2 = typeof(XmlReaderDelegator).GetMethod("IsStartElement", Globals.ScanAllMembers, new Type[] { typeof(XmlDictionaryString), typeof(XmlDictionaryString) });
s_isStartElementMethod2 = typeof(XmlReaderDelegator).GetMethod("IsStartElement", Globals.ScanAllMembers, null, new Type[] { typeof(XmlDictionaryString), typeof(XmlDictionaryString) }, null);
Debug.Assert(s_isStartElementMethod2 != null);
}
return s_isStartElementMethod2;
Expand Down Expand Up @@ -371,7 +371,7 @@ public static MethodInfo WriteAttributeStringMethod
{
if (s_writeAttributeStringMethod == null)
{
s_writeAttributeStringMethod = typeof(XmlWriterDelegator).GetMethod("WriteAttributeString", Globals.ScanAllMembers, new Type[] { typeof(string), typeof(string), typeof(string), typeof(string) });
s_writeAttributeStringMethod = typeof(XmlWriterDelegator).GetMethod("WriteAttributeString", Globals.ScanAllMembers, null, new Type[] { typeof(string), typeof(string), typeof(string), typeof(string) }, null);
Debug.Assert(s_writeAttributeStringMethod != null);
}
return s_writeAttributeStringMethod;
Expand All @@ -383,7 +383,7 @@ public static MethodInfo WriteEndElementMethod
{
if (s_writeEndElementMethod == null)
{
s_writeEndElementMethod = typeof(XmlWriterDelegator).GetMethod("WriteEndElement", Globals.ScanAllMembers, Array.Empty<Type>());
s_writeEndElementMethod = typeof(XmlWriterDelegator).GetMethod("WriteEndElement", Globals.ScanAllMembers, null, Array.Empty<Type>(), null);
Debug.Assert(s_writeEndElementMethod != null);
}
return s_writeEndElementMethod;
Expand Down Expand Up @@ -431,7 +431,7 @@ public static MethodInfo WriteStartElementMethod
{
if (s_writeStartElementMethod == null)
{
s_writeStartElementMethod = typeof(XmlWriterDelegator).GetMethod("WriteStartElement", Globals.ScanAllMembers, new Type[] { typeof(XmlDictionaryString), typeof(XmlDictionaryString) });
s_writeStartElementMethod = typeof(XmlWriterDelegator).GetMethod("WriteStartElement", Globals.ScanAllMembers, null, new Type[] { typeof(XmlDictionaryString), typeof(XmlDictionaryString) }, null);
Debug.Assert(s_writeStartElementMethod != null);
}
return s_writeStartElementMethod;
Expand All @@ -444,7 +444,7 @@ public static MethodInfo WriteStartElementStringMethod
{
if (s_writeStartElementStringMethod == null)
{
s_writeStartElementStringMethod = typeof(XmlWriterDelegator).GetMethod("WriteStartElement", Globals.ScanAllMembers, new Type[] { typeof(string), typeof(string) });
s_writeStartElementStringMethod = typeof(XmlWriterDelegator).GetMethod("WriteStartElement", Globals.ScanAllMembers, null, new Type[] { typeof(string), typeof(string) }, null);
Debug.Assert(s_writeStartElementStringMethod != null);
}
return s_writeStartElementStringMethod;
Expand All @@ -457,7 +457,7 @@ public static MethodInfo ParseEnumMethod
{
if (s_parseEnumMethod == null)
{
s_parseEnumMethod = typeof(Enum).GetMethod("Parse", BindingFlags.Static | BindingFlags.Public, new Type[] { typeof(Type), typeof(string) });
s_parseEnumMethod = typeof(Enum).GetMethod("Parse", BindingFlags.Static | BindingFlags.Public, null, new Type[] { typeof(Type), typeof(string) }, null);
Debug.Assert(s_parseEnumMethod != null);
}
return s_parseEnumMethod;
Expand All @@ -470,7 +470,7 @@ public static MethodInfo GetJsonMemberNameMethod
{
if (s_getJsonMemberNameMethod == null)
{
s_getJsonMemberNameMethod = typeof(XmlObjectSerializerReadContextComplexJson).GetMethod("GetJsonMemberName", Globals.ScanAllMembers, new Type[] { typeof(XmlReaderDelegator) });
s_getJsonMemberNameMethod = typeof(XmlObjectSerializerReadContextComplexJson).GetMethod("GetJsonMemberName", Globals.ScanAllMembers, null, new Type[] { typeof(XmlReaderDelegator) }, null);
Debug.Assert(s_getJsonMemberNameMethod != null);
}
return s_getJsonMemberNameMethod;
Expand Down
4 changes: 2 additions & 2 deletions ...aContractSerialization/src/System/Runtime/Serialization/Json/JsonFormatReaderGenerator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -573,11 +573,11 @@ private void ReadCollection(CollectionDataContract collectionContract)
{
case CollectionKind.GenericDictionary:
type = Globals.TypeOfDictionaryGeneric.MakeGenericType(itemType.GetGenericArguments());
constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, Array.Empty<Type>())!;
constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, Array.Empty<Type>(), null)!;
break;
case CollectionKind.Dictionary:
type = Globals.TypeOfHashtable;
constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, Array.Empty<Type>())!;
constructor = type.GetConstructor(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic, null, Array.Empty<Type>(), null)!;
break;
case CollectionKind.Collection:
case CollectionKind.GenericCollection:
Expand Down
12 changes: 7 additions & 5 deletions ...aContractSerialization/src/System/Runtime/Serialization/Json/JsonFormatWriterGenerator.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -346,8 +346,8 @@ private void WriteCollection(CollectionDataContract collectionContract)
{
enumeratorType = collectionContract.GetEnumeratorMethod.ReturnType;
}
MethodInfo? moveNextMethod = enumeratorType.GetMethod(Globals.MoveNextMethodName, BindingFlags.Instance | BindingFlags.Public, Array.Empty<Type>());
MethodInfo? getCurrentMethod = enumeratorType.GetMethod(Globals.GetCurrentMethodName, BindingFlags.Instance | BindingFlags.Public, Array.Empty<Type>());
MethodInfo? moveNextMethod = enumeratorType.GetMethod(Globals.MoveNextMethodName, BindingFlags.Instance | BindingFlags.Public, null, Array.Empty<Type>(), null);
MethodInfo? getCurrentMethod = enumeratorType.GetMethod(Globals.GetCurrentMethodName, BindingFlags.Instance | BindingFlags.Public, null, Array.Empty<Type>(), null);
if (moveNextMethod == null || getCurrentMethod == null)
{
if (enumeratorType.IsInterface)
Expand Down Expand Up @@ -388,15 +388,15 @@ private void WriteCollection(CollectionDataContract collectionContract)
_ilg.Call(_objectLocal, collectionContract.GetEnumeratorMethod);
if (isDictionary)
{
ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor(Globals.ScanAllMembers, new Type[] { Globals.TypeOfIDictionaryEnumerator })!;
ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor(Globals.ScanAllMembers, null, new Type[] { Globals.TypeOfIDictionaryEnumerator }, null)!;
_ilg.ConvertValue(collectionContract.GetEnumeratorMethod.ReturnType, Globals.TypeOfIDictionaryEnumerator);
_ilg.New(dictEnumCtor);
}
else if (isGenericDictionary)
{
Debug.Assert(keyValueTypes != null);
Type ctorParam = Globals.TypeOfIEnumeratorGeneric.MakeGenericType(Globals.TypeOfKeyValuePair.MakeGenericType(keyValueTypes));
ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor(Globals.ScanAllMembers, new Type[] { ctorParam })!;
ConstructorInfo dictEnumCtor = enumeratorType.GetConstructor(Globals.ScanAllMembers, null, new Type[] { ctorParam }, null)!;
_ilg.ConvertValue(collectionContract.GetEnumeratorMethod.ReturnType, ctorParam);
_ilg.New(dictEnumCtor);
}
Expand Down Expand Up @@ -560,7 +560,9 @@ private bool TryWritePrimitiveArray(Type type, Type itemType, LocalBuilder value
MethodInfo writeArrayMethodInfo = typeof(JsonWriterDelegator).GetMethod(
writeArrayMethod,
Globals.ScanAllMembers,
new Type[] { type, typeof(XmlDictionaryString), typeof(XmlDictionaryString) })!;
null,
new Type[] { type, typeof(XmlDictionaryString), typeof(XmlDictionaryString) },
null)!;
_ilg.Call(_xmlWriterArg, writeArrayMethodInfo, value, itemName, null);
return true;
}
Expand Down
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