如何使用PropertyBuilder创建私有属性



在C#中,我们可以通过以下操作创建私有属性:

private string Name { get; set; }

但是,假设我们正在使用Reflection.Emit.PropertyBuilder.创建属性

以下代码将创建public属性(尚未定义getter和setter方法):

PropertyBuilder prop = typeBuilder.DefineProperty("Name", PropertyAttributes.None, CallingConvention.HasThis, typeof(string), Type.EmptyTypes);

如果private可见,我将如何定义相同的属性?

Reflection.Emit.FieldBuilder可以指定为FieldAttributes.Private,但PropertyBuilder似乎没有提供类似的功能。

反射发射可以做到这一点吗?

构建属性时,您可以设置私有的get/set属性,如下所示。不能将属性本身设置为私有。

从文档中,相关代码如下所示。

PropertyBuilder custNamePropBldr = myTypeBuilder.DefineProperty("CustomerName",
                                                     PropertyAttributes.HasDefault,
                                                     typeof(string),
                                                     null);
    // The property set and property get methods require a special
    // set of attributes.
    MethodAttributes getSetAttr = 
        MethodAttributes.Public | MethodAttributes.SpecialName |
            MethodAttributes.HideBySig;
    // Define the "get" accessor method for CustomerName.
    MethodBuilder custNameGetPropMthdBldr = 
        myTypeBuilder.DefineMethod("get_CustomerName",
                                   getSetAttr,        
                                   typeof(string),
                                   Type.EmptyTypes);
ILGenerator custNameGetIL = custNameGetPropMthdBldr.GetILGenerator();
    custNameGetIL.Emit(OpCodes.Ldarg_0);
    custNameGetIL.Emit(OpCodes.Ldfld, customerNameBldr);
    custNameGetIL.Emit(OpCodes.Ret);
    // Define the "set" accessor method for CustomerName.
    MethodBuilder custNameSetPropMthdBldr = 
        myTypeBuilder.DefineMethod("set_CustomerName",
                                   getSetAttr,     
                                   null,
                                   new Type[] { typeof(string) });
    ILGenerator custNameSetIL = custNameSetPropMthdBldr.GetILGenerator();
    custNameSetIL.Emit(OpCodes.Ldarg_0);
    custNameSetIL.Emit(OpCodes.Ldarg_1);
    custNameSetIL.Emit(OpCodes.Stfld, customerNameBldr);
    custNameSetIL.Emit(OpCodes.Ret);
    // Last, we must map the two methods created above to our PropertyBuilder to 
    // their corresponding behaviors, "get" and "set" respectively. 
    custNamePropBldr.SetGetMethod(custNameGetPropMthdBldr);
    custNamePropBldr.SetSetMethod(custNameSetPropMthdBldr);

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