====== Effective Aspects: A Typed Monadic Embedding of Pointcuts and Advice ====== 
This is the main page for our research on pointcut/advice model of aspect-oriented programming (AOP) in monadic setting. We have developed a Haskell AOP library that provides the full pointcut/advice model of AOP into a monadic setting. Read below for further details.

** See our follow-up work: [[http://pleiad.cl/research/cri|Compositional Reasoning About Aspect Interference]] **

====== Code for our Transactions on Aspect-Oriented Software Development Submission ======

**Thesis Reviewers: this source code also corresponds to the manuscript**

The code for our TAOSD submission can be downloaded {{research:software:effectiveaspects-taosd.zip|here}}

====== A Typed Monadic Embedding of Aspects (AOSD 2013) ======

We developed a novel approach to embed pointcut/advice aspects in a typed functional programming language like Haskell. Aspects are first-class, can be deployed dynamically, and the pointcut language is extensible. Type soundness is guaranteed by exploiting the underlying type system, in particular phantom types and a new anti-unification type class. The use of monads brings type-based reasoning about effects for the first time in the pointcut/advice setting, and makes it possible to modularly extend or modify the aspect language.

====== Source Code ======

===== Original code from AOSD 2013 =====
The original source of the AOSD 2013 paper can be downloaded {{:research:software:aop2.zip | here}}. See the included README file for details.

===== Taming Aspects with Monads and Membranes (FOAL 2013) =====
The source of our FOAL 2013 submission can be downloaded {{:research:software:aomonad-foal13.zip | here}}. This is an updated revision of the previous code with programmable membranes semantics for aspect-oriented programming. See the included README and README-FOAL file for details.

====== About the Code ======

We tested the software in the [[http://hackage.haskell.org/platform/|Haskell Platform]] version 2012.2.0.0. Consequently, we used the Glasgow Haskell Compiler, GHC, with the following [[http://pleiad.dcc.uchile.cl/research/software/haskellaop/ghc-extensions|extensions]].

The code depends on the following packages:
  * random
  * mtl
  * HUnit
  * QuickCheck
  * containers
  * haskell-src-meta
  * template-haskell
  * polytypeable
  * ghc-prim
  * fgl (functional graph library, for the membrane semantics)

Which can be installed using the [[http://www.haskell.org/haskellwiki/Cabal-Install | cabal package manager]] included with the Haskell Platform.

We include the paper examples, and tests used during development. The main difference between the code in the paper and the source code are:

  * deployment/undeployment: we define the AOPMonad class with the deploy/undeploy top-level operations. These functions use the underlying deployInEnv / undeployInEnv functions defined by type class MonadDeploy.

  * In file Function.hs we define tagged functions to provide a more robust notion of function equality. Join points, open function application, and weaving are modified to accept this new kind of functions.