internal void InternalWriteObjectContent(XmlWriterDelegator writer, object?graph, DataContractResolver?dataContractResolver)
{
if (MaxItemsInObjectGraph == 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.Format(SR.ExceededMaxItemsQuota, MaxItemsInObjectGraph)));
}
DataContract contract = RootContract;
Type declaredType = contract.UnderlyingType;
Type graphType = (graph == null) ? declaredType : graph.GetType();
if (_serializationSurrogateProvider != null)
{
graph = SurrogateToDataContractType(_serializationSurrogateProvider, graph, declaredType, ref graphType);
}
dataContractResolver ??= DataContractResolver;
if (graph == null)
{
if (IsRootXmlAny(_rootName, contract))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.Format(SR.IsAnyCannotBeNull, declaredType)));
}
WriteNull(writer);
}
else
{
if (declaredType == graphType)
{
if (contract.CanContainReferences)
{
XmlObjectSerializerWriteContext context = XmlObjectSerializerWriteContext.CreateContext(this, contract, dataContractResolver);
context.HandleGraphAtTopLevel(writer, graph, contract);
context.SerializeWithoutXsiType(contract, writer, graph, declaredType.TypeHandle);
}
else
{
contract.WriteXmlValue(writer, graph, null);
}
}
else
{
XmlObjectSerializerWriteContext?context;
if (IsRootXmlAny(_rootName, contract))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(SR.Format(SR.IsAnyCannotBeSerializedAsDerivedType, graphType, contract.UnderlyingType)));
}
contract = GetDataContract(contract, declaredType, graphType);
context = XmlObjectSerializerWriteContext.CreateContext(this, RootContract, dataContractResolver);
if (contract.CanContainReferences)
{
context.HandleGraphAtTopLevel(writer, graph, contract);
}
context.OnHandleIsReference(writer, contract, graph);
context.SerializeWithXsiTypeAtTopLevel(contract, writer, graph, declaredType.TypeHandle, graphType);
}
}
}
internal void InternalWriteObjectContent(XmlWriterDelegator writer, object graph, System.Runtime.Serialization.DataContractResolver dataContractResolver)
{
if (this.MaxItemsInObjectGraph == 0)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(System.Runtime.Serialization.SR.GetString("ExceededMaxItemsQuota", new object[] { this.MaxItemsInObjectGraph })));
}
DataContract rootContract = this.RootContract;
Type underlyingType = rootContract.UnderlyingType;
Type objType = (graph == null) ? underlyingType : graph.GetType();
if (this.dataContractSurrogate != null)
{
graph = SurrogateToDataContractType(this.dataContractSurrogate, graph, underlyingType, ref objType);
}
if (dataContractResolver == null)
{
dataContractResolver = this.DataContractResolver;
}
if (graph == null)
{
if (base.IsRootXmlAny(this.rootName, rootContract))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(System.Runtime.Serialization.SR.GetString("IsAnyCannotBeNull", new object[] { underlyingType })));
}
XmlObjectSerializer.WriteNull(writer);
}
else if (underlyingType == objType)
{
if (rootContract.CanContainReferences)
{
XmlObjectSerializerWriteContext context = XmlObjectSerializerWriteContext.CreateContext(this, rootContract, dataContractResolver);
context.HandleGraphAtTopLevel(writer, graph, rootContract);
context.SerializeWithoutXsiType(rootContract, writer, graph, underlyingType.TypeHandle);
}
else
{
rootContract.WriteXmlValue(writer, graph, null);
}
}
else
{
XmlObjectSerializerWriteContext context2 = null;
if (base.IsRootXmlAny(this.rootName, rootContract))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(XmlObjectSerializer.CreateSerializationException(System.Runtime.Serialization.SR.GetString("IsAnyCannotBeSerializedAsDerivedType", new object[] { objType, rootContract.UnderlyingType })));
}
rootContract = GetDataContract(rootContract, underlyingType, objType);
context2 = XmlObjectSerializerWriteContext.CreateContext(this, this.RootContract, dataContractResolver);
if (rootContract.CanContainReferences)
{
context2.HandleGraphAtTopLevel(writer, graph, rootContract);
}
context2.OnHandleIsReference(writer, rootContract, graph);
context2.SerializeWithXsiTypeAtTopLevel(rootContract, writer, graph, underlyingType.TypeHandle, objType);
}
}