1 (*********************************************************************************************************************************)
2 (* HaskCoreTypes: basically GHC's TypeRep.Type imported into Coqland *)
3 (*********************************************************************************************************************************)
5 Generalizable All Variables.
6 Require Import Preamble.
7 Require Import General.
8 Require Import Coq.Strings.String.
9 Require Import Coq.Lists.List.
10 Require Import HaskKinds.
11 Require Import HaskCoreVars.
12 Require Import HaskLiterals.
13 Require Import HaskTyCons.
15 Variable CoreCoercion : Type. Extract Inlined Constant CoreCoercion => "Coercion.Coercion".
16 Variable classTyCon : Class_ -> CoreTyCon. Extract Inlined Constant classTyCon => "Class.classTyCon".
17 Variable coreTyConToString : CoreTyCon -> string. Extract Inlined Constant coreTyConToString => "outputableToString".
18 Variable coreDataConToString : CoreDataCon -> string. Extract Inlined Constant coreDataConToString => "outputableToString".
20 (* this exracts onto TypeRep.Type, on the nose *)
22 | TyVarTy : CoreVar -> CoreType
23 | AppTy : CoreType -> CoreType -> CoreType (* first arg must be AppTy or TyVarTy*)
24 | TyConApp : CoreTyCon -> list CoreType -> CoreType
25 | FunTy : CoreType -> CoreType -> CoreType (* technically redundant since we have FunTyCon *)
26 | ForAllTy : CoreVar -> CoreType -> CoreType
27 | PredTy : PredType -> CoreType
29 | ClassP : Class_ -> list CoreType -> PredType
30 | IParam : CoreIPName CoreName -> CoreType -> PredType
31 | EqPred : CoreType -> CoreType -> PredType.
32 Extract Inductive CoreType =>
33 "TypeRep.Type" [ "TypeRep.TyVarTy" "TypeRep.AppTy" "TypeRep.TyConApp" "TypeRep.FunTy" "TypeRep.ForAllTy" "TypeRep.PredTy" ].
34 Extract Inductive PredType =>
35 "TypeRep.PredType" [ "TypeRep.ClassP" "TypeRep.IParam" "TypeRep.EqPred" ].
37 Variable coreNameToString : CoreName -> string. Extract Inlined Constant coreNameToString => "outputableToString".
38 Variable coreCoercionToString : CoreCoercion -> string. Extract Inlined Constant coreCoercionToString => "outputableToString".
39 Variable coreCoercionKind : CoreCoercion -> CoreType*CoreType. Extract Inlined Constant coreCoercionKind => "Coercion.coercionKind".
40 Variable kindOfCoreType : CoreType -> Kind. Extract Inlined Constant kindOfCoreType => "(coreKindToKind . Coercion.typeKind)".
41 Variable coreTypeToString : CoreType -> string. Extract Inlined Constant coreTypeToString => "(outputableToString . coreViewDeep)".
42 Variable setVarType : CoreVar -> CoreType -> CoreVar. Extract Inlined Constant setVarType => "Var.setVarType".
44 (* GHC provides decision procedures for equality on its primitive types; we tell Coq to blindly trust them *)
45 Variable coreTyCon_eq : EqDecider CoreTyCon. Extract Inlined Constant coreTyCon_eq => "(==)".
46 Variable tyCon_eq : EqDecider TyCon. Extract Inlined Constant tyCon_eq => "(==)".
47 Variable tyFun_eq : EqDecider TyFun. Extract Inlined Constant tyFun_eq => "(==)".
48 Variable dataCon_eq : EqDecider CoreDataCon. Extract Inlined Constant dataCon_eq => "(==)".
49 Variable coreName_eq : EqDecider CoreName. Extract Inlined Constant coreName_eq => "(==)".
50 Instance CoreTyConEqDecidable : EqDecidable CoreTyCon := { eqd_dec := coreTyCon_eq }.
51 Instance TyConEqDecidable : EqDecidable TyCon := { eqd_dec := tyCon_eq }.
52 Instance TyFunEqDecidable : EqDecidable TyFun := { eqd_dec := tyFun_eq }.
53 Instance DataConEqDecidable : EqDecidable CoreDataCon := { eqd_dec := dataCon_eq }.
54 Instance CoreNameEqDecidable : EqDecidable CoreName := { eqd_dec := coreName_eq }.
55 Instance CoreTypeToString : ToString CoreType := { toString := coreTypeToString }.
56 Instance CoreNameToString : ToString CoreName := { toString := coreNameToString }.
57 Instance CoreCoercionToString : ToString CoreCoercion := { toString := coreCoercionToString }.
58 Instance CoreDataConToString : ToString CoreDataCon := { toString := coreDataConToString }.
59 Instance CoreTyConToString : ToString CoreTyCon := { toString := coreTyConToString }.