Re: [Haskell-cafe] Is it possible to get the information of instances of a type?

On Wed, Oct 26, 2011 at 6:53 AM, Magicloud Magiclouds < magicloud.magiclouds@gmail.com> wrote:

But in Haskell, could I write a code to list the classes that a type instanced? TemplateHaskell as well.

It's possible with TemplateHaskell. Look at classInstances and the ClassI data constructor. http://haskell.org/ghc/docs/7.0.4/html/libraries/template-haskell-2.5.0.0/La...