diff options
| author | Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com> | 2015-08-10 16:14:18 +0200 |
|---|---|---|
| committer | Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk> | 2015-08-21 18:31:31 +0100 |
| commit | ac10a4ccbe416e8612c6ca49b9f19c3a6f4cf25f (patch) | |
| tree | 0bd758507d681f93a8049eeb18e6063ce41697ae /haddock-api/src/Haddock | |
| parent | 45d72d1d46dda593823bd6aedf860d18d60f3ab2 (diff) | |
Fix weird-looking Hoogle output for familyless classes.
Diffstat (limited to 'haddock-api/src/Haddock')
| -rw-r--r-- | haddock-api/src/Haddock/Backends/Hoogle.hs | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/haddock-api/src/Haddock/Backends/Hoogle.hs b/haddock-api/src/Haddock/Backends/Hoogle.hs index f4f5be90..f6ad9808 100644 --- a/haddock-api/src/Haddock/Backends/Hoogle.hs +++ b/haddock-api/src/Haddock/Backends/Hoogle.hs @@ -160,7 +160,7 @@ ppSig dflags x = ppSigWithDoc dflags x [] -- note: does not yet output documentation for class methods ppClass :: DynFlags -> TyClDecl Name -> [(Name, DocForDecl Name)] -> [String] -ppClass dflags decl subdocs = (out dflags decl' ++ " " ++ ppTyFams) : ppMethods +ppClass dflags decl subdocs = (out dflags decl' ++ ppTyFams) : ppMethods where decl' = decl { tcdSigs = [], tcdMeths = emptyBag @@ -170,10 +170,12 @@ ppClass dflags decl subdocs = (out dflags decl' ++ " " ++ ppTyFams) : ppMethods ppMethods = concat . map (ppSig' . unLoc) $ tcdSigs decl ppSig' = flip (ppSigWithDoc dflags) subdocs . addContext - ppTyFams = showSDocUnqual dflags . whereWrapper $ concat - [ map ppr (tcdATs decl) - , map (ppr . tyFamEqnToSyn . unLoc) (tcdATDefs decl) - ] + ppTyFams + | null $ tcdATs decl = "" + | otherwise = (" " ++) . showSDocUnqual dflags . whereWrapper $ concat + [ map ppr (tcdATs decl) + , map (ppr . tyFamEqnToSyn . unLoc) (tcdATDefs decl) + ] whereWrapper elems = vcat' [ text "where" <+> lbrace |