[Haskell-cafe] Is it possible to get the information of instances of a type?
qdunkan at gmail.com
Thu Oct 27 01:04:47 CEST 2011
> No, this lists all the instances of a class. OP asked for the classes
> of which a given type is an instace.
> Presumably it is possible, since Haddock does it! In the
> documentation generated for a type it lists classes of which the type
> is an instance. So you might want to look at how Haddock does it. I
> suspect the only way is through the GHC API.
ghci :info does it too.
More information about the Haskell-Cafe