Thread: [Aspectsharp-users] Some bugfixes a feature and a bug report

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Hi guys,

I have spent some time playing with Aspect# over the last couple of =
days, and have a few things to report to HQ.  I think what you have so =
far is great stuff, and I'm really looking forward to using this in a =
project some time soon!

First, I should note that I am using the CLR 2.0 beta1 / VS 2005.  That =
said, the Aspect# 1.x version seemed to work fine, and this version =
almost works, but sometimes methods that have valid pointcuts do not get =
overridden by =20

Castle.DynamicProxy.ProxyGenerator. CreateCustomClassProxy(baseClass, =
interceptor, context);=20

inside AspectSharp.Core.CustomProxyGenerator. CreateClassProxy(Type, =
object[], IInterceptor).  For instance, in the example program that you =
provide, the MixinAndInterceptorExecution function works correctly, but =
the HashTableTest runs but get_Item is not intercepted, and using =
reflection I can see that the DeclaringType of get_Item is still =
HashTable.  I spent a lot of time on this but I could not find an error =
in your code, and I couldn't find the source for Castle.DynamicProxy =
(the one I found at Apache.Avalon was quite different).

Secondly, I found that the cache in AspectSharp.Core.Proxy. =
DefaultProxyFactory did not work if the aspect was operating on more =
than one type.  I think the problem only surfaced the second time that =
the second class was wrapped.  Making the following change and adding an =
apropriate AspectInstanceKey class as below fixed this:
private Type GetProxyTypeFromCache (AspectDefinition aspect, Type =
baseClass)
{
    return _aspect2ProxyType[new AspectInstanceKey(aspect, baseClass)] =
as Type;
}

private void RegisterProxyTypeInCache (AspectDefinition aspect, Type =
baseClass, Type proxyType)
{
    _aspect2ProxyType[new AspectInstanceKey(aspect, baseClass)] =3D =
proxyType;
}

Third, I discovered that the parser does not treat '_' as an ID token.  =
I have fixed this as well.

Fourth, I have extended the method interceptor pointcut definition so =
that we can specify the accessibility of the method we want to =
intercept.  The original syntax still works, but now we can also have:

pointcut method(public * *)
pointcut method(* void *(*))
pointcut method(internal * Method.*())
etc.

Finally, just for fun I added this function to the AspectEngine.  I =
think it has potential although it is nothing particularly spectacular =
right now, so I thought I'd pass it along.
public virtual TypeToWrap WrapClass<TypeToWrap>()
{
    return (TypeToWrap)WrapClass(typeof(TypeToWrap));
}

called:

ISomeClass d =3D engine.WrapClass<SomeClass>();

Cheers!

Darrick Wiebe

Thread: [Aspectsharp-users] Some bugfixes a feature and a bug report

aspectsharp-users