DefaultReferenceResolver
using Newtonsoft.Json.Utilities;
using System.Globalization;
namespace Newtonsoft.Json.Serialization
{
internal class DefaultReferenceResolver : IReferenceResolver
{
private int _referenceCount;
private BidirectionalDictionary<string, object> GetMappings(object context)
{
JsonSerializerInternalBase jsonSerializerInternalBase;
if ((jsonSerializerInternalBase = (context as JsonSerializerInternalBase)) == null) {
JsonSerializerProxy jsonSerializerProxy;
if ((jsonSerializerProxy = (context as JsonSerializerProxy)) == null)
throw new JsonException("The DefaultReferenceResolver can only be used internally.");
jsonSerializerInternalBase = jsonSerializerProxy.GetInternalSerializer();
}
return jsonSerializerInternalBase.DefaultReferenceMappings;
}
public object ResolveReference(object context, string reference)
{
GetMappings(context).TryGetByFirst(reference, out object second);
return second;
}
public string GetReference(object context, object value)
{
BidirectionalDictionary<string, object> mappings = GetMappings(context);
if (!mappings.TryGetBySecond(value, out string first)) {
_referenceCount++;
first = _referenceCount.ToString(CultureInfo.InvariantCulture);
mappings.Set(first, value);
}
return first;
}
public void AddReference(object context, string reference, object value)
{
GetMappings(context).Set(reference, value);
}
public bool IsReferenced(object context, object value)
{
string first;
return GetMappings(context).TryGetBySecond(value, out first);
}
}
}