为什么没有属性的 protobuf-net 序列化？

Question

示例如下：

class A
{
    public int x { get; private set; }

    public A(){}
    public A(int x)
    {
        this.x = x;
    }
}
class Program
{
    static void Main(string[] args)
    {
        A a = new A(1);
        A a1;
        using (FileStream fs = new FileStream("data", FileMode.Create, FileAccess.Write))
        {
            Serializer.Serialize(fs, a);
        }

        using (FileStream fs = new FileStream("data", FileMode.Open, FileAccess.Read))
        {
            a1 = Serializer.Deserialize<A>(fs);
        }
        Console.ReadLine();
    }  
}

Class A 没有任何属性或契约，但 protobuf-net 没有抛出任何异常。为什么？反序列化后 a1.x 包含 1.

目标框架是 4.5。 Protobuf-net版本是2.0.0.668，安装了nuget。

Answer 1

是v2的特性，来自the webpage

"v2" released

"v2" is a major overhaul to the core engine to allow much greater flexibility, and avoid a number of problems with over-use of generics. It is wire-compatible with your existing data, and the old API still exists. Simply: the library is much cleaner and leaner, and is much more versatile for onwards development. In particular v2 allows:

allow use on more platforms (iOS, WP7, Mono for Android, WinRT, etc)

allow use without attributes if you wish

allow pre-generation of a serialization assembly, to remove all reflection at runtime

and generally: just more features

（强调我的）

为什么没有属性的 protobuf-net 序列化？

Why protobuf-net serializes without atrributes?

.net

c#

serialization

protocol-buffers

protobuf-net

"v2" released