# \[ANN\] Aquarium V0.2.0 Released **URL:** \ **Category:** ruby-talk\ **Created:** [24 November 2007 16:54 UTC](https://rubytalk.org/t/ann-aquarium-v0-2-0-released/42466 "2007-11-24T16:54:40Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Dean\_Wampler](https://avatars.discourse-cdn.com/v4/letter/d/cc9497/32.png) [@Dean\_Wampler](https://rubytalk.org/u/Dean_Wampler)\ **Post date:** [24 November 2007 16:54 UTC](https://rubytalk.org/t/ann-aquarium-v0-2-0-released/42466/1 "2007-11-24T16:54:40Z")
I just posted V0.2.0 for Aquarium, an Aspect-Oriented toolkit for Ruby. You can install/update in the usual way: $ sudo gem install/update aquarium Here are the change notes for this release: == Version 0.2.0 V0.2.0 changes the parameter list used for advice blocks and adds numerous enhancements, robustness improvements and more complete "spec'ing". Bug fixes: none Enhancements: 13402 Support a subclass syntax like AspectJ's "Type+" 13984 More flexible argument list to the advise block 14053 Remove JoinPoint#type, JoinPoint#type=, JoinPoint#object, and JoinPoint#object= 14061 Add a control flow mechanism to skipping (sic) intermediate advice 15164 Deprecate ObjectFinder 15413 Remove ObjectFinder 15710 Eliminate redundant public methods in various "finders" #13402 adds new invocation options to specify types and their descendents (subclasses or modules that include the specified module(s)) and ancestors. The latter should be used cautiously as it will include things like Kernel, Object, and Class! I used new command options rather than the AspectJ "+" suffix (and the proposed, but never implemented "-" suffix for ancestors), because the "+" would be confusing with regular expressions and not in the spirit of trying to make the pointcut language "easy to read". So, the following are now available:   :type\_and\_ancestors   :types\_and\_ancestors   :type\_and\_descendents   :types\_and\_descendents And the corresponding:   :exclude\_type\_and\_ancestors   :exclude\_types\_and\_ancestors   :exclude\_type\_and\_descendents   :exclude\_types\_and\_descendents If you want both the ancestors and descendents, just use both options with the same value. #13984 adds the object as the second argument to the advice block parameter list. This change reflects the fact that the object is often needed, but calling jp.context.advised\_object is a bit tedious. THIS CHANGE BREAKS BACKWARDS COMPATIBILITY!! An exception is raised if advice has the signature |jp, \*args|. #14061 adds a new method, JoinPoint#invoke\_original\_join\_point, which will invoke the original method without intermediate advice. If called within around advice, you can write advice that vetoes all subsequent advice, yet invokes the original method. Use this technique cautiously, however, since you may not always know what other advices are involved and what side effects this control-flow change might cause. #15164 and 15413 remove ObjectFinder because it is not used and it requires ObjectSpace, which has high overhead and won't be enabled, by default, in JRuby (it will be optional). #15710 removes redundant methods that were becoming a maintenance issue, in particular, MethodFinder#find\_all\_by and TypeFinder#find\_by\_name. This is a non-backwards-compatible API change. Finally, note that I have not yet been able to resolve bug #15202, "Intermittent confusion between classes and objects when invoking advice." I believe this is a very rare occurrence and only likely to ever happen during the "torture-test" of running the RSpec suite. Please post a comment to Tracker if you encounter it! > **ยทยทยท** > > -- > Dean Wampler > [http://www.objectmentor.com](http://www.objectmentor.com) > [http://www.aspectprogramming.com](http://www.aspectprogramming.com) > [http://aquarium.rubyforge.org](http://aquarium.rubyforge.org) > > > **[Hand Feeding Hummingbirds | Best Hand Feeders | Contract4j](http://www.contract4j.org)** > > > > Learn how to hand feed hummingbirds. Best hummingbird hand held feeders for usage this upcoming hummingbird season.