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-rw-r--r--src/Haddock/Interface/AttachInstances.hs5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/Haddock/Interface/AttachInstances.hs b/src/Haddock/Interface/AttachInstances.hs
index 90416cd0..a4d4764e 100644
--- a/src/Haddock/Interface/AttachInstances.hs
+++ b/src/Haddock/Interface/AttachInstances.hs
@@ -106,7 +106,9 @@ getAllInfo name = withSession $ \hsc_env -> do
-- in Haddock output) and unifying special tycons with normal ones.
-- For the benefit of the user (looks nice and predictable) and the
-- tests (which prefer output to be deterministic).
-data SimpleType = SimpleType Name [SimpleType] deriving (Eq,Ord)
+data SimpleType = SimpleType Name [SimpleType]
+ | SimpleTyLit TyLit
+ deriving (Eq,Ord)
instHead :: ([TyVar], [PredType], Class, [Type]) -> ([Int], Name, [SimpleType])
@@ -126,6 +128,7 @@ instHead (_, _, cls, args)
where (SimpleType s ts) = simplify t1
simplify (TyVarTy v) = SimpleType (tyVarName v) []
simplify (TyConApp tc ts) = SimpleType (tyConName tc) (map simplify ts)
+ simplify (LitTy l) = SimpleTyLit l
-- sortImage f = sortBy (\x y -> compare (f x) (f y))