private bool DetermineExtensionDataProperty(Dictionary <string, JsonPropertyInfo> cache)
{
JsonPropertyInfo?jsonPropertyInfo = GetPropertyWithUniqueAttribute(typeof(JsonExtensionDataAttribute), cache);
if (jsonPropertyInfo != null)
{
Type declaredPropertyType = jsonPropertyInfo.DeclaredPropertyType;
if (typeof(IDictionary <string, object>).IsAssignableFrom(declaredPropertyType) ||
typeof(IDictionary <string, JsonElement>).IsAssignableFrom(declaredPropertyType))
{
JsonConverter converter = Options.GetConverter(declaredPropertyType);
Debug.Assert(converter != null);
}
else
{
ThrowHelper.ThrowInvalidOperationException_SerializationDataExtensionPropertyInvalid(this, jsonPropertyInfo);
}
DataExtensionProperty = jsonPropertyInfo;
return(true);
}
return(false);
}
private static void WriteExtensionData(Utf8JsonWriter writer, ref WriteStackFrame frame)
{
DictionaryEntry entry = ((IDictionaryEnumerator)frame.Enumerator).Entry;
if (entry.Value is JsonElement element)
{
Debug.Assert(entry.Key is string);
string propertyName = (string)entry.Key;
element.WriteProperty(propertyName, writer);
}
else
{
ThrowHelper.ThrowInvalidOperationException_SerializationDataExtensionPropertyInvalid(frame.JsonClassInfo, entry.Value.GetType());
}
}
private void DetermineExtensionDataProperty()
{
JsonPropertyInfo jsonPropertyInfo = GetPropertyThatHasAttribute(typeof(JsonExtensionDataAttribute));
if (jsonPropertyInfo != null)
{
Type declaredPropertyType = jsonPropertyInfo.DeclaredPropertyType;
if (!typeof(IDictionary <string, JsonElement>).IsAssignableFrom(declaredPropertyType) &&
!typeof(IDictionary <string, object>).IsAssignableFrom(declaredPropertyType))
{
ThrowHelper.ThrowInvalidOperationException_SerializationDataExtensionPropertyInvalid(this, jsonPropertyInfo);
}
DataExtensionProperty = jsonPropertyInfo;
}
}