c# - 覆盖并行类层次结构中的方法

Question

我有哪些选项可以解决以下并行继承层次结构的问题？我想让 Serializer 类保持无状态。

public abstract class BaseSerializerOptions
{
    public Boolean SortComponents { get; set; }
}

public class TextSerializerOptions : BaseSerializerOptions
{
    public Int32 TrimStrings { get; set; }
}

public class BinarySerializerOptions : BaseSerializerOptions
{
    public Boolean SkipNulls { get; set; }
}

public abstract class BaseSerializer
{
    public abstract void Serialize(Object obj, Stream s, BaseSerializerOptions opt);
}

public class TextSerializer : BaseSerializer
{
    public override void Serialize(Object obj, Stream s, TextSerializerOptions opt)
    {
    }
}

public class BinarySerializer : BaseSerializer
{
    public override void Serialize(Object obj, Stream s, BinarySerializerOptions opt)
    {
    }
}

我希望能够编写这样的方法:

    static void Test(BaseSerializer s, BaseSerializerOptions o)
    {
        var obj = new MyObject { ... };
        using (var f = File.OpenWrite("..."))
        {
            s.Serialize(obj, f, o);
        }
        // do more things here to check the serializer result; 
        // the serializers might return some kind of operation status, which I want to check
    }

    static void TestSerializers()
    {
        Test(new TextSerializer(), new TextSerializerOptions {...});
        Test(new BinarySerializer(), new BinarySerializerOptions {...});
    }

Answer 1

扩展评论中的第一个建议:

public abstract class BaseSerializerOptions
{
    public Boolean SortComponents { get; set; }
}

public class TextSerializerOptions : BaseSerializerOptions
{
    public Int32 TrimStrings { get; set; }
}

public class BinarySerializerOptions : BaseSerializerOptions
{
    public Boolean SkipNulls { get; set; }
}

public abstract class BaseSerializer<T> where T : BaseSerializerOptions
{
    public abstract void Serialize(Object obj, Stream s, T opt);
}

public class TextSerializer : BaseSerializer<TextSerializerOptions>
{
    public override void Serialize(Object obj, Stream s, TextSerializerOptions opt)
    {
    }
}

public class BinarySerializer : BaseSerializer<BinarySerializerOptions>
{
    public override void Serialize(Object obj, Stream s, BinarySerializerOptions opt)
    {
    }
}

特定语法用法的更新:

public class TextSerializer : BaseSerializer
{
    public void Serialize(Object obj, Stream s, TextSerializerOptions opt)
    {
        this.Serialize(obj, s, opt);
    }

    public override void Serialize(object obj, Stream s, BaseSerializerOptions opt)
    {
        if (opt is TextSerializerOptions options)
        {

        }
        else
        {

        }
    }
}

public class BinarySerializer : BaseSerializer
{
    public void Serialize(Object obj, Stream s, BinarySerializerOptions opt)
    {
        this.Serialize(obj, s, opt);
    }

    public override void Serialize(object obj, Stream s, BaseSerializerOptions opt)
    {
        if (opt is BinarySerializerOptions options)
        {

        }
        else
        {

        }
    }
}