A Library and Preprocessor for Causal Commutative Arrows (CCA)

This library implements the CCA normalization described in the paper [1]. It uses Template Haskell as a staged compilation for arrow programs written in arrow syntax. A modified arrow preprocesor based on Paterson's arrowp program, now called ccap, is provided to help preparing proper input to Template Haskell.

Note that this is a preliminary release, and still very experimental. Please send your feedbacks directly to Paul H. Liu paul@thev.net, as well as Eric Cheng eric.cheng@yale.edu. All suggestions are welcome.

ChangeLog:

Mon Apr 12 EDT 2010: 

    Normalize to loopD instead of loopB, add more test cases, add support
    for GHC 6.12.1, and bump version to 0.1.3.

Sun Sep 13 EDT 2009: Some cleanup using HLint, bump version to 0.1.2.

---

Last Modified: Wed Sep 13 EDT 2009

[1]: Hai Liu, Eric Cheng, and Paul Hudak. Causal Commutative Arrows and Their Optimization. Proceedings of the 14th ACM SIGPLAN International Conference on Functional Programming (ICFP 2009). Edinburgh, Scotland. August 2009