[project @ 2000-11-06 08:15:20 by simonpj]

[ghc-hetmet.git] / ghc / compiler / prelude / PrelInfo.lhs

diff --git a/ghc/compiler/prelude/PrelInfo.lhs b/ghc/compiler/prelude/PrelInfo.lhs
index e62d663..f1a64ed 100644 (file)
--- a/ghc/compiler/prelude/PrelInfo.lhs
+++ b/ghc/compiler/prelude/PrelInfo.lhs
@@ -40,7 +40,7 @@ import TysWiredIn     ( wiredInTyCons )
 import HscTypes        ( TyThing(..), TypeEnv, mkTypeEnv )
 
 -- others:
-import TyCon           ( tyConDataConsIfAvailable, TyCon )
+import TyCon           ( tyConDataConsIfAvailable, tyConGenIds, TyCon )
 import Class           ( Class, classKey )
 import Type            ( funTyCon )
 import Util            ( isIn )
@@ -70,9 +70,13 @@ wiredInThings
     ]
 
 wiredInTyConThings :: TyCon -> [TyThing]
+-- This is a bit of a cheat (c.f. TcTyDecls.mkImplicitDataBinds
+-- It assumes that wired in tycons have no record selectors
 wiredInTyConThings tc
-   = ATyCon tc : [ AnId n | dc <- tyConDataConsIfAvailable tc, 
-                            n  <- [dataConId dc, dataConWrapId dc] ]
+   = [ATyCon tc] 
+   ++ [ AnId i | i <- tyConGenIds tc ]
+   ++ [ AnId n | dc <- tyConDataConsIfAvailable tc, 
+                 n  <- [dataConId dc, dataConWrapId dc] ] 
                        -- Synonyms return empty list of constructors
 
 wiredInThingEnv :: TypeEnv