Generics example: creating Monoid instancesYesod is a Haskell web framework for productive development of type-safe, RESTful, high performance web applications. October 2, 2012By Michael SnoymanView source on Github I recently was working on a project which included a very large datatype for holding configuration data. The configuration data was parsed from a file. One trick was that each config file could reference another "parent" config
