-- are ok; hence the assert
ispec { is_dfun = dfun, is_tvs = mkVarSet tvs, is_tys = tys }
where
- (tvs, _, tys) = tcSplitDFunTy (idType dfun)
+ (tvs, _, _, tys) = tcSplitDFunTy (idType dfun)
instanceRoughTcs :: Instance -> [Maybe Name]
instanceRoughTcs = is_tcs
is_tvs = mkVarSet tvs, is_tys = tys,
is_cls = className cls, is_tcs = roughMatchTcs tys }
where
- (tvs, cls, tys) = tcSplitDFunTy (idType dfun)
+ (tvs, _, cls, tys) = tcSplitDFunTy (idType dfun)
mkImportedInstance :: Name -> [Maybe Name]
-> DFunId -> OverlapFlag -> Instance
is_tvs = mkVarSet tvs, is_tys = tys,
is_cls = cls, is_tcs = mb_tcs }
where
- (tvs, _, tys) = tcSplitDFunTy (idType dfun)
+ (tvs, _, _, tys) = tcSplitDFunTy (idType dfun)
roughMatchTcs :: [Type] -> [Maybe Name]
roughMatchTcs tys = map rough tys
find ((item, map (lookup_tv subst) dfun_tvs) : ms) us rest
-- Does not match, so next check whether the things unify
- -- See Note [overlapping instances] above
+ -- See Note [Overlapping instances] above
| Incoherent <- oflag
= find ms us rest