How to Define Data Types

Stephen Compall shares rules of thumb and best practices for defining algebraic data types in Haskell to minimize boilerplate.

Stephen Compall New York Haskell Meetup April 22, 2015 It's one thing to know about the numerous features for defining datatypes in Haskell; it's another to know when to use each one, to maximize the utility of your datatype definitions and minimize boilerplate code for working with them. In this talk, we will define a set of "rules of thumb" for writing datatype definitions; these rules, inspired by Edward Kmett's practices and 100% lens-friendly, will scale with you as you grow from beginner to experienced Haskell programmer. Slides: nocandysw.com/how-to-define-data-types.pdf Code: code.launchpad.net/~scompall/+junk/how-to-define-data-types-…