如何建模“懒惰” Protobuf-net中的字段

Question

我正在使用Protobuf-net进行序列化。我有一个包含“懒惰”字段的课程，如何进行设置并使测试案例工作？任何帮助将受到高度赞赏。

[Fact]
public void LazyField()
{
    MetaType metaType = RuntimeTypeModel.Default.Add(typeof(WithLazyField), true);
    metaType.UseConstructor = false;
    ValueMember metaField = metaType.AddField(1, "_lazyField");
    metaField.AsReference = true;

    var obj = new WithLazyField();

    var clone = Serializer.DeepClone(obj);
    Assert.Equal(obj.GetValue(), clone.GetValue());
}

public class WithLazyField
{
    private readonly Lazy<double> _lazyField;

    public WithLazyField()
    {
        _lazyField = new Lazy<double>(() => Calculate());
    }

    public double Calculate()
    {
        return 1.0;
    }

    public double GetValue()
    {
        return _lazyField.Value;
    }
}

谢谢

Answer 1

可以通过替代支持“懒惰”类型