CorefxやReference Sourceからコピペしてきて、Unityでも動けばいいですねライブラリ。

コンパイルはできる(動くとは言っていない)

• https://github.com/Microsoft/referencesource
• https://github.com/dotnet/corefx

• System
  • Action<T1, T2, T3, T4, T5, T6, T7, T8>
  • Action<T1, T2, T3, T4, T5, T6, T7>
  • Action<T1, T2, T3, T4, T5, T6>
  • Action<T1, T2, T3, T4, T5>
  • Func<T1, T2, T3, T4, T5, T6, T7, T8, TResult>
  • Func<T1, T2, T3, T4, T5, T6, T7, TResult>
  • Func<T1, T2, T3, T4, T5, T6, TResult>
  • Func<T1, T2, T3, T4, T5, TResult>
  • Lazy<T>
  • Tuple<T1, T2, T3, T4, T5, T6, T7, TRest>
  • Tuple<T1, T2, T3, T4, T5, T6, T7>
  • Tuple<T1, T2, T3, T4, T5, T6>
  • Tuple<T1, T2, T3, T4, T5>
  • Tuple<T1, T2, T3, T4>
  • Tuple<T1, T2, T3>
  • Tuple<T1, T2>
  • Tuple<T>
  • Tuple
  • Collections
    • StructualComparer
    • StructualComparisons
    • StructualEqualityComparer
    • Concurrent
      • ConcurrentDictionary<TKey, TValue>
      • ConcurrentQueue<T>
      • ConcurrentStack<T>
      • OrderablePartitioner<TSource>
      • Partitioner
    • Generic
      • IReadOnlyCollection<T>
      • IReadOnlyDictionary<TKey, TValue>
      • IReadOnlyList<T>
      • ISet<T>
  • Threading
    • ThreadLocal<T>
    • Volatile
    • SpinWait

• System.Stopwatch.Restart()