在Silverlight中抛出ReflectionTypeLoadException的继承WeakReference

using System;
using System.Reflection;
using System.WeakReference;

public class ReflectionTypeLoadExceptionHandler
{
    private WeakReference<Assembly> _assemblyRef;

    public ReflectionTypeLoadExceptionHandler(Assembly assembly)
    {
        _assemblyRef = new WeakReference<Assembly>(assembly);
    }

    public Type[] GetTypes()
    {
        if (_assemblyRef.TryGetTarget(out Assembly assembly))
        {
            try
            {
                return assembly.GetTypes();
            }
            catch (ReflectionTypeLoadException ex)
            {
                // 处理ReflectionTypeLoadException异常
                return ex.Types;
            }
        }
        else
        {
            throw new InvalidOperationException("Assembly has been unloaded.");
        }
    }
}