sharpcompress/src/SharpCompress/Lazy.cs

#nullable disable

using System;

namespace SharpCompress;

public class Lazy<T>
{
    private readonly Func<T> _lazyFunc;
    private bool _evaluated;
    private T _value;

    public Lazy(Func<T> lazyFunc) => _lazyFunc = lazyFunc;

    public T Value
    {
        get
        {
            if (!_evaluated)
            {
                _value = _lazyFunc();
                _evaluated = true;
            }
            return _value;
        }
    }
}