| To: haskell-cafe@haskell.org
| Subject: [Haskell-cafe] Template haskell instance checking
|
| Is there a way, in template haskell, to find out what instance
declarations
| exist? I'm not trying to accomplish anything specific right now, but
I can
| see two potential uses for this. One is to emit
Is there a way, in template haskell, to find out what instance declarations
exist? I'm not trying to accomplish anything specific right now, but I can
see two potential uses for this. One is to emit compile-time error messages
from TH code which would be more informative than the