如何使用CoreClr获取加载的程序集中的所有类型？

Question

In my application I need to get a list of all types loaded regardless of what assembly they are contained in. For example, Project A might need to get a list of all types that implement interface A even if that implementation exists in project B.

In the .Net Framework I would do this by querying for all assemblies in the current app domain.

Since it seems like the concept of an app domain is gone in CoreCLR, what is the proper way to accomplish this?

Answer 1

When run under DNX in RC1-Update1 (note flakey behavior when run under dotnet.exe directly):

var assemblies = PlatformServices.Default.LibraryManager.GetLibraries().SelectMany(l => l.Assemblies.Select(an =>
{
try
{ return Assembly.Load(an); }
catch (ReflectionTypeLoadException)
{ return null; }
})).Where(a => (object)a != null);

For a real workd example, see AssemblyLoaderContainerContext.cs in my TextMteal project on GitHub.

It is also worth noting that a naive attempt to "get me all the types that implement the interface of X" would fail to look at interface maps of types. Lucky for Core CLR, TypeInfo exposes ImplementedInterfaces which greatly simplifies this task versus the previos .NET full frameworks (prior to System.Runtime).