ToString instance for HaskCore

[coq-hetmet.git] / src / HaskCore.v

diff --git a/src/HaskCore.v b/src/HaskCore.v
index 2242e48..244139a 100644 (file)
--- a/src/HaskCore.v
+++ b/src/HaskCore.v
@@ -6,25 +6,25 @@ Generalizable All Variables.
 Require Import Preamble.
 Require Import General.
 Require Import Coq.Strings.String.
-Require Import HaskGeneral.
-Require Import HaskLiterals.
+Require Import HaskKinds.
+Require Import HaskCoreLiterals.
 Require Import HaskCoreTypes.
 Require Import HaskCoreVars.
 
 (* this type must extract to EXACTLY match TypeRep.Type *)
-Inductive CoreExpr (b:Type) :=
-| CoreEVar   : CoreVar                          -> CoreExpr b
-| CoreELit   : HaskLiteral                      -> CoreExpr b
-| CoreEApp   : CoreExpr b      ->  CoreExpr b   -> CoreExpr b
-| CoreELam   :          b      ->  CoreExpr b   -> CoreExpr b
-| CoreELet   : CoreBind b      ->  CoreExpr b   -> CoreExpr b
-| CoreECase  : CoreExpr b -> b ->  CoreType     -> list (@triple AltCon (list b) (CoreExpr b)) -> CoreExpr b
-| CoreECast  : CoreExpr b      ->  CoreCoercion -> CoreExpr b
-| CoreENote  : Note            ->  CoreExpr b   -> CoreExpr b
-| CoreEType  : CoreType                         -> CoreExpr b
-with      CoreBind (b:Type) :=
-| CoreNonRec : b -> CoreExpr b       -> CoreBind b
-| CoreRec    : list (b * CoreExpr b) -> CoreBind b.
+Inductive CoreExpr {b:Type} :=
+| CoreEVar   : CoreVar                          -> CoreExpr
+| CoreELit   : HaskLiteral                      -> CoreExpr
+| CoreEApp   : CoreExpr        ->  CoreExpr     -> CoreExpr
+| CoreELam   : b               ->  CoreExpr     -> CoreExpr
+| CoreELet   : CoreBind        ->  CoreExpr     -> CoreExpr
+| CoreECase  : CoreExpr   -> b ->  CoreType     -> list (@triple AltCon (list b) CoreExpr) -> CoreExpr
+| CoreECast  : CoreExpr        ->  CoreCoercion -> CoreExpr
+| CoreENote  : Note            ->  CoreExpr     -> CoreExpr
+| CoreEType  : CoreType                         -> CoreExpr
+with      CoreBind {b:Type} :=
+| CoreNonRec : b -> CoreExpr         -> CoreBind  
+| CoreRec    : list (b * CoreExpr  ) -> CoreBind.
 Extract Inductive CoreExpr =>
    "CoreSyn.Expr" [
       "CoreSyn.Var"
@@ -42,35 +42,13 @@ Extract Inductive CoreBind =>
 (* extracts the Name from a CoreVar *)
 Variable coreVarCoreName    : CoreVar -> CoreName.   Extract Inlined Constant coreVarCoreName  => "Var.varName".
 
-Variable coretype_eq_dec : forall (c1 c2:CoreType), sumbool (eq c1 c2) (not (eq c1 c2)).
-  Extract Inlined Constant coretype_eq_dec => "Type.coreEqType".
-
-Extract Constant ArrowTyCon           => "Type.funTyCon".     (* Figure 7, (->) *)
-Extract Constant CoFunConst           => "TyCon.TyCon".                        Extraction Implicit CoFunConst [ 1 ].
-Extract Constant TyFunConst           => "TyCon.TyCon".                        Extraction Implicit TyFunConst [ 1 ].
-
-(*Extract Inlined Constant getDataCons => "TyCon.tyConDataCons".*)
-Variable mkTyConApp : forall n, TyCon n -> list CoreType -> CoreType.
-  Extract Inlined Constant mkTyConApp => "Type.mkTyConApp".
-
 (* the magic wired-in name for the modal type introduction form *)
 Variable hetmet_brak_name   : CoreName.              Extract Inlined Constant hetmet_brak_name => "PrelNames.hetmet_brak_name".
 
 (* the magic wired-in name for the modal type elimination form *)
 Variable hetmet_esc_name    : CoreName.              Extract Inlined Constant hetmet_esc_name  => "PrelNames.hetmet_esc_name".
 
-(* detects our crude Core-encoding of modal type introduction/elimination forms *)
-Definition isBrak (ce:CoreExpr CoreVar) : ??CoreVar :=
-match ce with
-  | (CoreEApp (CoreEApp (CoreEVar v) (CoreEType (TyVarTy ec))) (CoreEType tbody))
-    => if coreName_eq hetmet_brak_name (coreVarCoreName v) then Some ec else None
-  | _ => None
-end.
-Definition isEsc (ce:CoreExpr CoreVar) : ??CoreVar :=
-match ce with
-  | (CoreEApp (CoreEApp (CoreEVar v) (CoreEType (TyVarTy ec))) (CoreEType tbody))
-    => if coreName_eq hetmet_esc_name (coreVarCoreName v) then Some ec else None
-  | _ => None
-end.
-
+Variable coreExprToString : @CoreExpr CoreVar -> string.  Extract Inlined Constant coreExprToString => "outputableToString".
 
+Instance CoreExprToString : ToString (@CoreExpr CoreVar) :=
+  { toString := coreExprToString }.
\ No newline at end of file