X-Git-Url: http://git.megacz.com/?p=coq-hetmet.git;a=blobdiff_plain;f=src%2FHaskCoreTypes.v;h=5c4ce6ecfd2fda2b6b0aad89ba3dc10935695607;hp=a5671964fc86f5486b5600682c6af0acb962da19;hb=635ee434c9edbad1bc6c9bf5ba2b91cb8c51be8e;hpb=5a0761840d89b82cdacb0bf9215fd41aba847b68

diff --git a/src/HaskCoreTypes.v b/src/HaskCoreTypes.v
index a567196..5c4ce6e 100644
--- a/src/HaskCoreTypes.v
+++ b/src/HaskCoreTypes.v
@@ -6,49 +6,66 @@ Generalizable All Variables.
 Require Import Preamble.
 Require Import General.
 Require Import Coq.Strings.String.
-Require Import HaskGeneral.
-Require Import HaskLiterals.
+Require Import Coq.Lists.List.
+Require Import HaskKinds.
 Require Import HaskCoreVars.
 
-Variable CoreName           : Type.                                               Extract Inlined Constant CoreName => "Name.Name".
-Variable coreName_eq        : forall (a b:CoreName),   sumbool (a=b) (not (a=b)). Extract Inlined Constant coreName_eq => "(==)".
-Axiom    coreName_eq_refl   : ∀ v, (coreName_eq v v)=(left _ (refl_equal v)).
-Instance CoreNameEqDecidable : EqDecidable CoreName :=
-{ eqd_dec            := coreName_eq
-}.
+Variable CoreTyCon           : Type.                      Extract Inlined Constant CoreTyCon             => "TyCon.TyCon".
+Variable CoreDataCon         : Type.                      Extract Inlined Constant CoreDataCon           => "DataCon.DataCon".
+Variable CoreName            : Type.                      Extract Inlined Constant CoreName              => "Name.Name".
+Variable CoreCoercion        : Type.                      Extract Inlined Constant CoreCoercion          => "Coercion.Coercion".
+Variable Class_              : Type.                      Extract Inlined Constant Class_                => "Class.Class".
+Variable classTyCon          : Class_ -> CoreTyCon.       Extract Inlined Constant classTyCon            => "Class.classTyCon".
+Variable tyConToString       : CoreTyCon      -> string.  Extract Inlined Constant tyConToString         => "outputableToString".
+Variable dataConToString     : CoreDataCon-> string.      Extract Inlined Constant dataConToString       => "outputableToString".
+Variable CoreIPName          : Type -> Type.
 
-Inductive CoreIPName        : Type -> Type := .                               Extract Inductive CoreIPName => "CoreSyn.IPName" [ ].
+   Extract Constant CoreIPName "’a"        => "BasicTypes.IPName".
+   Extraction Inline CoreIPName.
 
 (* this exracts onto TypeRep.Type, on the nose *)
 Inductive CoreType :=
-| TyVarTy  :             CoreVar                   -> CoreType
-| AppTy    :             CoreType ->      CoreType -> CoreType   (* first arg must be AppTy or TyVarTy*)
-| TyConApp : forall {n}, TyCon n  -> list CoreType -> CoreType
-| FunTy    :             CoreType ->      CoreType -> CoreType   (* technically redundant since we have FunTyCon *)
-| ForAllTy :             CoreVar  ->      CoreType -> CoreType
-| PredTy   :             PredType                  -> CoreType
+| TyVarTy  : CoreVar                    -> CoreType
+| AppTy    : CoreType  ->      CoreType -> CoreType   (* first arg must be AppTy or TyVarTy*)
+| TyConApp : CoreTyCon -> list CoreType -> CoreType
+| FunTy    : CoreType  ->      CoreType -> CoreType   (* technically redundant since we have FunTyCon *)
+| ForAllTy : CoreVar   ->      CoreType -> CoreType
+| PredTy   : PredType                   -> CoreType
 with PredType :=
-| ClassP   : forall {n}, Class_ n            -> list CoreType -> PredType
-| IParam   :             CoreIPName CoreName -> CoreType      -> PredType
-| EqPred   :             CoreType            -> CoreType      -> PredType.
+| ClassP   : Class_              -> list CoreType -> PredType
+| IParam   : CoreIPName CoreName -> CoreType      -> PredType
+| EqPred   : CoreType            -> CoreType      -> PredType.
 Extract Inductive CoreType =>
    "TypeRep.Type" [ "TypeRep.TyVarTy" "TypeRep.AppTy" "TypeRep.TyConApp" "TypeRep.FunTy" "TypeRep.ForAllTy" "TypeRep.PredTy" ].
 Extract Inductive PredType =>
    "TypeRep.PredType" [ "TypeRep.ClassP" "TypeRep.IParam" "TypeRep.EqPred" ].
 
-Variable coreTypeToString      : CoreType     -> string.    Extract Inlined Constant coreTypeToString       => "outputableToString".
 Variable coreNameToString      : CoreName     -> string.    Extract Inlined Constant coreNameToString       => "outputableToString".
-
-Variable CoreCoercion          : Type.                      Extract Inlined Constant CoreCoercion           => "Coercion.Coercion".
 Variable coreCoercionToString  : CoreCoercion -> string.    Extract Inlined Constant coreCoercionToString   => "outputableToString".
-Variable coreCoercionKind      : CoreCoercion -> CoreType*CoreType.
- Extract Inlined Constant coreCoercionKind => "Coercion.coercionKind".
+Variable coreCoercionKind : CoreCoercion -> CoreType*CoreType. Extract Inlined Constant coreCoercionKind => "Coercion.coercionKind".
+Variable kindOfCoreType   : CoreType -> Kind.   Extract Inlined Constant kindOfCoreType   => "(coreKindToKind . Coercion.typeKind)".
+Variable coreTypeToString : CoreType -> string. Extract Inlined Constant coreTypeToString => "(outputableToString . coreViewDeep)".
+
+(* once again, we pull the trick of having multiple Coq types map to a single Haskell type to provide stronger typing *)
+Variable TyCon           : Type.                         Extract Inlined Constant TyCon             => "TyCon.TyCon".
+Variable TyFun           : Type.                         Extract Inlined Constant TyFun             => "TyCon.TyCon".
+
+(* GHC provides decision procedures for equality on its primitive types; we tell Coq to blindly trust them *)
+Variable coreTyCon_eq        : EqDecider CoreTyCon.       Extract Inlined Constant coreTyCon_eq          => "(==)".
+Variable tyCon_eq            : EqDecider TyCon.           Extract Inlined Constant tyCon_eq              => "(==)".
+Variable tyFun_eq            : EqDecider TyFun.           Extract Inlined Constant tyFun_eq              => "(==)".
+Variable dataCon_eq          : EqDecider CoreDataCon.     Extract Inlined Constant dataCon_eq            => "(==)".
+Variable coreName_eq         : EqDecider CoreName.        Extract Inlined Constant coreName_eq           => "(==)".
+Instance CoreTyConEqDecidable: EqDecidable CoreTyCon   := { eqd_dec := coreTyCon_eq }.
+Instance TyConEqDecidable    : EqDecidable TyCon       := { eqd_dec := tyCon_eq }.
+Instance TyFunEqDecidable    : EqDecidable TyFun       := { eqd_dec := tyFun_eq }.
+Instance DataConEqDecidable  : EqDecidable CoreDataCon := { eqd_dec := dataCon_eq }.
+Instance CoreNameEqDecidable : EqDecidable CoreName    := { eqd_dec := coreName_eq }.
+
 
-Variable coretype_eq_dec : forall (c1 c2:CoreType), sumbool (eq c1 c2) (not (eq c1 c2)).
-  Extract Inlined Constant coretype_eq_dec => "Type.coreEqType".
-  Instance CoreTypeEqDecidable : EqDecidable CoreType.
-    apply Build_EqDecidable.
-    apply coretype_eq_dec.
-    Defined.
 
-Variable kindOfCoreType : CoreType -> Kind.      Extract Inlined Constant kindOfCoreType => "(coreKindToKind . Coercion.typeKind)".
+Instance CoreTypeToString : ToString CoreType := { toString := coreTypeToString }.
+Instance CoreNameToString : ToString CoreName := { toString := coreNameToString }.
+Instance CoreCoercionToString : ToString CoreCoercion := { toString := coreCoercionToString }.
+Instance CoreDataConToString : ToString CoreDataCon := { toString := dataConToString }.
+Instance CoreTyConToString : ToString CoreTyCon := { toString := tyConToString }.