Src/Newtonsoft.Json/Utilities/DictionaryWrapper.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Threading;

namespace Newtonsoft.Json.Utilities
{
  internal interface IWrappedDictionary : IDictionary
  {
    object UnderlyingDictionary { get; }
  }

  internal class DictionaryWrapper<TKey, TValue> : IDictionary<TKey, TValue>, IWrappedDictionary
  {
    private readonly IDictionary _dictionary;
    private readonly IDictionary<TKey, TValue> _genericDictionary;
    private object _syncRoot;

    public DictionaryWrapper(IDictionary dictionary)
    {
      ValidationUtils.ArgumentNotNull(dictionary, "dictionary");

      _dictionary = dictionary;
    }

    public DictionaryWrapper(IDictionary<TKey, TValue> dictionary)
    {
      ValidationUtils.ArgumentNotNull(dictionary, "dictionary");

      _genericDictionary = dictionary;
    }

    public void Add(TKey key, TValue value)
    {
      if (_genericDictionary != null)
        _genericDictionary.Add(key, value);
      else
        _dictionary.Add(key, value);
    }

    public bool ContainsKey(TKey key)
    {
      if (_genericDictionary != null)
        return _genericDictionary.ContainsKey(key);
      else
        return _dictionary.Contains(key);
    }

    public ICollection<TKey> Keys
    {
      get
      {
        if (_genericDictionary != null)
          return _genericDictionary.Keys;
        else
          return _dictionary.Keys.Cast<TKey>().ToList();
      }
    }