DictionaryEnumerator.cs

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using System.Collections.Generic;
 
namespace System.Collections.Immutable;
 
internal sealed class DictionaryEnumerator<TKey, TValue> : IDictionaryEnumerator, IEnumerator where TKey : notnull
{
    private readonly IEnumerator<KeyValuePair<TKey, TValue>> _inner;
 
    public DictionaryEntry Entry => new DictionaryEntry(_inner.Current.Key, _inner.Current.Value);
 
    public object Key => _inner.Current.Key;
 
    public object? Value => _inner.Current.Value;
 
    public object Current => Entry;
 
    internal DictionaryEnumerator(IEnumerator<KeyValuePair<TKey, TValue>> inner)
    {
        Requires.NotNull(inner, "inner");
        _inner = inner;
    }
 
    public bool MoveNext()
    {
        return _inner.MoveNext();
    }
 
    public void Reset()
    {
        _inner.Reset();
    }
}