ImmutableDictionaryBuilderDebuggerProxy.cs

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using System.Collections.Generic;
using System.Diagnostics;
 
namespace System.Collections.Immutable;
 
internal sealed class ImmutableDictionaryBuilderDebuggerProxy<TKey, TValue> where TKey : notnull
{
    private readonly ImmutableDictionary<TKey, TValue>.Builder _map;
 
    private KeyValuePair<TKey, TValue>[] _contents;
 
    [DebuggerBrowsable(DebuggerBrowsableState.RootHidden)]
    public KeyValuePair<TKey, TValue>[] Contents
    {
        get
        {
            if (_contents == null)
            {
                _contents = _map.ToArray(_map.Count);
            }
            return _contents;
        }
    }
 
    public ImmutableDictionaryBuilderDebuggerProxy(ImmutableDictionary<TKey, TValue>.Builder map)
    {
        Requires.NotNull(map, "map");
        _map = map;
    }
}