grin/Readings.md

Readings

http://www.timphilipwilliams.com/posts/2013-01-16-fixing-gadts.html

GHC core getting started

http://www.stephendiehl.com/posts/ghc_01.html http://www.stephendiehl.com/posts/ghc_02.html http://www.stephendiehl.com/posts/ghc_03.html

Recursion schemes

Resources for learning and using recursion schemes.

https://github.com/passy/awesome-recursion-schemes

Thoughts

Limits of recusrion schemes? Maybe a hylo can help to implement the list filter?

• https://stackoverflow.com/questions/18421926/list-filter-using-an-anamorphism

Articles

• Recursion Schemes: A Field Guide (Redux) - List of various recursion schemes with code samples.
• Catamorphisms - Definition on the Haskell Wiki.
• Catamorphisms - Short definition with code on School of Haskell by Edward Kmett.
• Rotating Squares - Using a hylomorphism to rotate a quadtree by Jared Tobin.
• Promorphisms, Pre and Post - Pratical examples of pre- and postpromorphisms by Jared Tobin.
• Time Traveling Recursion Schemes - Exploring histo and futu by example by Jared Tobin.
• Correcting the Visitor pattern - Showing that the Visitor pattern implements an f-algebra for use with a catamorphism (in Java).

Cheat Sheet

Recursion schemes

Algebras