diff options
Diffstat (limited to 'compiler/GHC/Core/Coercion.hs')
| -rw-r--r-- | compiler/GHC/Core/Coercion.hs | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/compiler/GHC/Core/Coercion.hs b/compiler/GHC/Core/Coercion.hs index 0999c5d7d1..1416e231a9 100644 --- a/compiler/GHC/Core/Coercion.hs +++ b/compiler/GHC/Core/Coercion.hs @@ -44,7 +44,6 @@ module GHC.Core.Coercion ( mkGReflRightCo, mkGReflLeftCo, mkCoherenceLeftCo, mkCoherenceRightCo, mkKindCo, castCoercionKind, castCoercionKind1, castCoercionKind2, - mkFamilyTyConAppCo, mkHeteroCoercionType, mkPrimEqPred, mkReprPrimEqPred, mkPrimEqPredRole, @@ -1614,29 +1613,6 @@ castCoercionKind g h1 h2 where (Pair t1 t2, r) = coercionKindRole g -mkFamilyTyConAppCo :: TyCon -> [CoercionN] -> CoercionN --- ^ Given a family instance 'TyCon' and its arg 'Coercion's, return the --- corresponding family 'Coercion'. E.g: --- --- > data family T a --- > data instance T (Maybe b) = MkT b --- --- Where the instance 'TyCon' is :RTL, so: --- --- > mkFamilyTyConAppCo :RTL (co :: a ~# Int) = T (Maybe a) ~# T (Maybe Int) --- --- cf. 'mkFamilyTyConApp' -mkFamilyTyConAppCo tc cos - | Just (fam_tc, fam_tys) <- tyConFamInst_maybe tc - , let tvs = tyConTyVars tc - fam_cos = assertPpr (tvs `equalLength` cos) (ppr tc <+> ppr cos) $ - map (liftCoSubstWith Nominal tvs cos) fam_tys - = mkTyConAppCo Nominal fam_tc fam_cos - | otherwise - = mkTyConAppCo Nominal tc cos - --- See Note [Newtype coercions] in GHC.Core.TyCon - mkPiCos :: Role -> [Var] -> Coercion -> Coercion mkPiCos r vs co = foldr (mkPiCo r) co vs |