问题描述
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观察以下代码片段:
public class SomeType
{
public SomeType2 X { get; set; }
public int Y { get; set; }
}
public class SomeType2
{
public string Z { get; set; }
}
public class SomeTypeSurrogate
{
public static implicit operator SomeTypeSurrogate(SomeType obj) { return new SomeTypeSurrogate { X = obj.X,Y = obj.Y }; }
public static implicit operator SomeType(SomeTypeSurrogate surrogate) { return new SomeType { X = surrogate.X,Y = surrogate.Y }; }
public SomeType2Surrogate X { get; set; }
public int Y { get; set; }
}
public class SomeType2Surrogate
{
public static implicit operator SomeType2Surrogate(SomeType2 obj) { return new SomeType2Surrogate { Z = obj.Z }; }
public static implicit operator SomeType2(SomeType2Surrogate surrogate) { return new SomeType2 { Z = surrogate.Z }; }
public string Z { get; set; }
}
我的问题是存在一个.NET库,它可以生成代理类型,如示例中给定的“真实”类型以及属性(必须在代理中找到)的示例中那样。
例如,一个虚构的代码可能看起来像这样(我受到protobuf-net的RuntimeTypeModel的启发):
var model = new TypeSurrogateModel();
model.SetSurrogateNameScheme(SurrogateNameScheme.AddSuffix,\"Surrogate\");
model.AddType(typeof(SomeType),\"X\",\"Y\");
model.AddType(typeof(SomeType2),\"Z\");
model.Compile(\"Surrogates.dll\");
...
var model = new TypeSurrogateModel();
model.AddAssembly(\"Surrogates.dll\");
SomeType obj = GetSomeTypeInstance();
object surrogate = model.GetSurrogate(obj);
Debug.Assert(surrogate.GetType().Name == \"SomeTypeSurrogate\");
要么
在使用代理创建装配之前:
var model = new TypeSurrogateModel();
model.SetSurrogateNameScheme(SurrogateNameScheme.AddSuffix,\"Z\");
model.GenerateSource(\"Surrogates.cs\");
创建并编译Surrogates.cs之后,轮到以常规类型安全的方式使用它的程序集:
SomeType obj = GetSomeTypeInstance();
SomeTypeSurrogate surrogate = obj;
解决方法
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