Document deriving strategies fully
The users’ guide currently sais in the section on
If an explicit deriving strategy is not given, GHC has an algorithm for determining how it will actually derive an instance. For brevity, the algorithm is omitted here. You can read the full algorithm at Wiki page.
I think this is doing our users a disservice: They want to rely on the guide to have authorative, concise and clear information. The wiki page contains too much stuff that is confusing for users (Alternative syntax, rationales etc.)
(Also, the link in the manual is wrong).
Ryan, do you agree and are you available to put the relevant bits into the manual?