From fbfd09c8bf12b6991fb0aab24bf01e272f89a131 Mon Sep 17 00:00:00 2001
From: Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com>
Date: Mon, 10 Aug 2015 14:38:43 +0200
Subject: Add missing default family equations in Hoogle output.

---
 haddock-api/src/Haddock/Backends/Hoogle.hs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'haddock-api/src/Haddock/Backends')

diff --git a/haddock-api/src/Haddock/Backends/Hoogle.hs b/haddock-api/src/Haddock/Backends/Hoogle.hs
index 0a174fd6..71e7cbc4 100644
--- a/haddock-api/src/Haddock/Backends/Hoogle.hs
+++ b/haddock-api/src/Haddock/Backends/Hoogle.hs
@@ -24,6 +24,7 @@ import Haddock.Utils hiding (out)
 import Bag
 import GHC
 import Outputable
+import NameSet
 
 import Data.Char
 import Data.List
@@ -169,7 +170,10 @@ 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 . map ppr $ tcdATs decl
+        ppTyFams = showSDocUnqual dflags . whereWrapper $ concat
+            [ map ppr (tcdATs decl)
+            , map (ppr . tyFamEqnToSyn . unLoc) (tcdATDefs decl)
+            ]
 
         addContext (TypeSig name (L l sig) nwcs) = TypeSig name (L l $ f sig) nwcs
         addContext (MinimalSig src sig) = MinimalSig src sig
@@ -181,6 +185,14 @@ ppClass dflags decl subdocs = (out dflags decl' ++ " " ++ ppTyFams) : ppMethods
         context = nlHsTyConApp (tcdName decl)
             (map (reL . HsTyVar . hsTyVarName . unL) (hsQTvBndrs (tyClDeclTyVars decl)))
 
+        tyFamEqnToSyn :: TyFamDefltEqn Name -> TyClDecl Name
+        tyFamEqnToSyn tfe = SynDecl
+            { tcdLName = tfe_tycon tfe
+            , tcdTyVars = tfe_pats tfe
+            , tcdRhs = tfe_rhs tfe
+            , tcdFVs = emptyNameSet
+            }
+
 
 ppInstance :: DynFlags -> ClsInst -> [String]
 ppInstance dflags x =
-- 
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