\r
opt_co' env _ (Refl ty) = Refl (substTy env ty)\r
opt_co' env sym (SymCo co) = opt_co env (not sym) co\r
\r
opt_co' env _ (Refl ty) = Refl (substTy env ty)\r
opt_co' env sym (SymCo co) = opt_co env (not sym) co\r
opt_co' env sym (AppCo co1 co2) = mkAppCo (opt_co env sym co1) (opt_co env sym co2)\r
opt_co' env sym (ForAllCo tv co) = case substTyVarBndr env tv of\r
(env', tv') -> mkForAllCo tv' (opt_co env' sym co)\r
opt_co' env sym (AppCo co1 co2) = mkAppCo (opt_co env sym co1) (opt_co env sym co2)\r
opt_co' env sym (ForAllCo tv co) = case substTyVarBndr env tv of\r
(env', tv') -> mkForAllCo tv' (opt_co env' sym co)\r
opt_trans_pred _ _ = Nothing\r
\r
fireTransRule :: String -> Coercion -> Coercion -> Coercion -> Maybe Coercion\r
opt_trans_pred _ _ = Nothing\r
\r
fireTransRule :: String -> Coercion -> Coercion -> Coercion -> Maybe Coercion\r
-fireTransRule rule co1 co2 res\r
- = -- pprTrace ("Trans rule fired: " ++ rule) (vcat [ppr co1, ppr co2, ppr res]) $\r
+fireTransRule _rule _co1 _co2 res\r
+ = -- pprTrace ("Trans rule fired: " ++ _rule) (vcat [ppr _co1, ppr _co2, ppr res]) $\r