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From Torsten Curdt <>
Subject Re: [javaflow] byte code instrumentation
Date Tue, 02 Aug 2005 17:40:33 GMT
> I wonder if we can reduce this to just one, namely to Stack.  
> Instead of remembering Thread->Continuation association, we can  
> remember Thread->Stack association. We then replace  
> Continuation.currentContinuation() with Stack.currentStack(), and  
> we can also move relevant flags (like restoring/capturing) to a  
> Stack object.
> This also has a nice side-effect of moving methods like isCapturing/ 
> isRestoring to a non-API package.

> Today, those methods are defined as public methods of Continuation,  
> as a part of the API class, even though they aren't supposed to be  
> called by applications.
> In this way, we can also make the Continuation truly immutable.
> Does this sound reasonable?

Well does sound reasonable - except that
isRestoring/isCapturing feels also a bit awkward
inside the Stack class.
Would have been nice to keep that one clean :-/

But on the other hand a clean Continuation interface
and saving some instructions on the bytecode level
does sound very tempting.

...we could also have a specialized Stack with
those flags extending the basic Stack implementation.



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