添加viewModel

tangxu

2024-10-22 6a07c4c846ffbb1e93afdf0260e123e4c145f419

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using System.Globalization;
using DPumpHydr.WinFrmUI.WenSkin.Json.Utilities;
 
namespace DPumpHydr.WinFrmUI.WenSkin.Json.Serialization
{
    internal class DefaultReferenceResolver : IReferenceResolver
    {
        private int _referenceCount;
 
        private BidirectionalDictionary<string, object> GetMappings(object context)
        {
            JsonSerializerInternalBase jsonSerializerInternalBase;
            if (context is JsonSerializerInternalBase)
            {
                jsonSerializerInternalBase = (JsonSerializerInternalBase)context;
            }
            else
            {
                if (!(context is JsonSerializerProxy))
                {
                    throw new JsonException("The DefaultReferenceResolver can only be used internally.");
                }
                jsonSerializerInternalBase = ((JsonSerializerProxy)context).GetInternalSerializer();
            }
            return jsonSerializerInternalBase.DefaultReferenceMappings;
        }
 
        public object ResolveReference(object context, string reference)
        {
            GetMappings(context).TryGetByFirst(reference, out var second);
            return second;
        }
 
        public string GetReference(object context, object value)
        {
            BidirectionalDictionary<string, object> mappings = GetMappings(context);
            if (!mappings.TryGetBySecond(value, out var 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);
        }
    }
}