diff options
Diffstat (limited to 'haddock-api/src/Haddock/Interface/Specialize.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Interface/Specialize.hs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/haddock-api/src/Haddock/Interface/Specialize.hs b/haddock-api/src/Haddock/Interface/Specialize.hs index f0cf08a1..0cac818d 100644 --- a/haddock-api/src/Haddock/Interface/Specialize.hs +++ b/haddock-api/src/Haddock/Interface/Specialize.hs @@ -203,11 +203,12 @@ setInternalOccName occ name = -- | Compute set of free variables of given type. -freeVariables :: HsType GhcRn -> Set Name +freeVariables :: forall p. (NamedThing (IdP p), DataId p, Typeable p) + => HsType p -> Set Name freeVariables = everythingWithState Set.empty Set.union query where - query term ctx = case cast term :: Maybe (HsType GhcRn) of + query term ctx = case cast term :: Maybe (HsType p) of Just (HsForAllTy _ bndrs _) -> (Set.empty, Set.union ctx (bndrsNames bndrs)) Just (HsTyVar _ _ (L _ name)) |