Skip to content

parts of Language.Haskell.TH.Ppr in wrong package?

Hello, should the following functions (and possibly others) from 'template' be in the 'pretty' package instead?

pprint :: Ppr a => a -> String
pprint x = render $ to_HPJ_Doc $ ppr x

class Ppr a where
    ppr :: a -> Doc
    ppr_list :: [a] -> Doc
    ppr_list = vcat . map ppr

instance Ppr a => Ppr [a] where
    ppr x = ppr_list x

I guess they can't be moved exactly as they are because the Doc type is different between the packages, however, I was looking for a class of "pretty-printable" values and it is strange that the only such class seems to be Ppr in the 'template' package...

Trac metadata
Trac field Value
Version 6.8.2
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component libraries/pretty
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system Unknown
Architecture Unknown
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information