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| author | Richard Eisenberg <eir@cis.upenn.edu> | 2015-12-24 14:33:19 -0500 |
|---|---|---|
| committer | Richard Eisenberg <eir@cis.upenn.edu> | 2015-12-24 14:37:39 -0500 |
| commit | 2db18b8135335da2da9918b722699df684097be9 (patch) | |
| tree | 660dd90916aa6568694bbe39cdab83c7af98c5d7 /compiler/prelude/TysPrim.hs | |
| parent | 48db13d279d592ed3044cbaf3513854bcb0d3dce (diff) | |
| download | haskell-2db18b8135335da2da9918b722699df684097be9.tar.gz | |
Visible type application
This re-working of the typechecker algorithm is based on
the paper "Visible type application", by Richard Eisenberg,
Stephanie Weirich, and Hamidhasan Ahmed, to be published at
ESOP'16.
This patch introduces -XTypeApplications, which allows users
to say, for example `id @Int`, which has type `Int -> Int`. See
the changes to the user manual for details.
This patch addresses tickets #10619, #5296, #10589.
Diffstat (limited to 'compiler/prelude/TysPrim.hs')
| -rw-r--r-- | compiler/prelude/TysPrim.hs | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/compiler/prelude/TysPrim.hs b/compiler/prelude/TysPrim.hs index a4715df0a6..14505850fd 100644 --- a/compiler/prelude/TysPrim.hs +++ b/compiler/prelude/TysPrim.hs @@ -648,7 +648,7 @@ mkProxyPrimTy k ty = TyConApp proxyPrimTyCon [k, ty] proxyPrimTyCon :: TyCon proxyPrimTyCon = mkPrimTyCon proxyPrimTyConName kind [Nominal,Nominal] VoidRep - where kind = ForAllTy (Named kv Invisible) $ + where kind = ForAllTy (Named kv Specified) $ mkFunTy k unliftedTypeKind kv = kKiVar k = mkTyVarTy kv @@ -664,8 +664,8 @@ proxyPrimTyCon = mkPrimTyCon proxyPrimTyConName kind [Nominal,Nominal] VoidRep eqPrimTyCon :: TyCon -- The representation type for equality predicates -- See Note [The equality types story] eqPrimTyCon = mkPrimTyCon eqPrimTyConName kind roles VoidRep - where kind = ForAllTy (Named kv1 Invisible) $ - ForAllTy (Named kv2 Invisible) $ + where kind = ForAllTy (Named kv1 Specified) $ + ForAllTy (Named kv2 Specified) $ mkFunTys [k1, k2] unliftedTypeKind [kv1, kv2] = mkTemplateTyVars [liftedTypeKind, liftedTypeKind] k1 = mkTyVarTy kv1 @@ -678,8 +678,8 @@ eqPrimTyCon = mkPrimTyCon eqPrimTyConName kind roles VoidRep eqReprPrimTyCon :: TyCon -- See Note [The equality types story] eqReprPrimTyCon = mkPrimTyCon eqReprPrimTyConName kind roles VoidRep - where kind = ForAllTy (Named kv1 Invisible) $ - ForAllTy (Named kv2 Invisible) $ + where kind = ForAllTy (Named kv1 Specified) $ + ForAllTy (Named kv2 Specified) $ mkFunTys [k1, k2] unliftedTypeKind [kv1, kv2] = mkTemplateTyVars [liftedTypeKind, liftedTypeKind] k1 = mkTyVarTy kv1 @@ -693,8 +693,8 @@ eqPhantPrimTyCon :: TyCon eqPhantPrimTyCon = mkPrimTyCon eqPhantPrimTyConName kind [Nominal, Nominal, Phantom, Phantom] VoidRep - where kind = ForAllTy (Named kv1 Invisible) $ - ForAllTy (Named kv2 Invisible) $ + where kind = ForAllTy (Named kv1 Specified) $ + ForAllTy (Named kv2 Specified) $ mkFunTys [k1, k2] unliftedTypeKind [kv1, kv2] = mkTemplateTyVars [liftedTypeKind, liftedTypeKind] k1 = mkTyVarTy kv1 @@ -925,7 +925,7 @@ anyTyCon = mkFamilyTyCon anyTyConName kind [kKiVar] Nothing Nothing NotInjective where - kind = ForAllTy (Named kKiVar Invisible) (mkTyVarTy kKiVar) + kind = ForAllTy (Named kKiVar Specified) (mkTyVarTy kKiVar) anyTypeOfKind :: Kind -> Type anyTypeOfKind kind = TyConApp anyTyCon [kind] |