.NET - 获取通用接口的所有实现? [英] .NET - Getting all implementations of a generic interface?

问题描述

关于通过反射实现接口"的答案展示了如何获得所有接口的实现.但是，给定一个通用接口 IInterface，以下内容不起作用:

An answer on " Implementations of interface through Reflection " shows how to get all implementations of an interface. However, given a generic interface, IInterface<T>, the following doesn't work:

var types = TypesImplementingInterface(typeof(IInterface<>))

谁能解释我如何修改该方法?

Can anyone explain how I can modify that method?

推荐答案

你可以这样使用:

public static bool DoesTypeSupportInterface(Type type, Type inter)
{
    if(inter.IsAssignableFrom(type))
        return true;
    if(type.GetInterfaces().Any(i => i.IsGenericType && i.GetGenericTypeDefinition() == inter))
        return true;
    return false;
}

public static IEnumerable<Type> TypesImplementingInterface(Type desiredType)
{
    return AppDomain
        .CurrentDomain
        .GetAssemblies()
        .SelectMany(assembly => assembly.GetTypes())
        .Where(type => DoesTypeSupportInterface(type, desiredType));

}

虽然它可以抛出 TypeLoadException ，但这是原始代码中已经存在的问题.例如在 LINQPad 中它不起作用，因为某些库无法加载.

It can throw a TypeLoadException though but that's a problem already present in the original code. For example in LINQPad it doesn't work because some libraries can't be loaded.

这篇关于.NET - 获取通用接口的所有实现?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！