可移植类库反射

我目前正在尝试将 Xamarin.iOS 应用程序库转换为 PCL（配置文件 78）。我有这段代码无法编译：

 public static void RegisterAllCommandHandlers(IEnumerable<Assembly> assemblies) {
            // Get all types that are concrete classes which implement ICommandHandler
            var commandHandlerOpenGenericType = typeof(ICommandHandler<>);
            var types = new List<Type>();
            foreach (var assembly in assemblies) {
                types.AddRange(assembly.GetTypes()
                      .Where(x => x.IsClass && !x.IsAbstract && x.GetInterfaces().Any(i => i.IsGenericType && i.GetGenericTypeDefinition() == commandHandlerOpenGenericType)));
            }
    }

Here is an image of the compiler errors:

如何使用新的反射 API 做同样的事情？

这是由于类型/类型信息分离造成的。看改进反射 API http://blogs.msdn.com/b/dotnet/archive/2012/08/28/evolving-the-reflection-api.aspx.

试试这个代码：

assembly.DefinedTypes
    .Where(x => x.IsClass && !x.IsAbstract && x.ImplementedInterfaces
        .Any(i => i.GetTypeInfo().IsGenericType && i.GetGenericTypeDefinition() == commandHandlerOpenGenericType))
    .Select(x => x.AsType())