This period I did the course Advanced Functional Programming and I had to choose a subject from a set list of subjects to present. I chose typed transformations of typed abstract syntax (TTTAS). (See this webpage for the technical report and associated library by Arthur Baars, Doaitse Swierstra and Marcos Viera.)
I already expected the subject to be one of the harder ones and I also had a restriction for the presentation due to practical issues, namely we could only use handouts (or your own laptop) and not a beamer because of multiple presenters.
Thus I made some handouts in a tutorial like fashion. It might save you some typing of the code found in the paper and hopefully get you interested in the subject. You might also find it useful to get some motivation for the use of GADTs and transformations of EDSLs in general.
The handouts:
The PDF file is here.
The lhs can be found here.
Wednesday, 7 April 2010
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