-Require Import Coq.Lists.List.
-Require Import Coq.Strings.Ascii.
-Require Import Coq.Strings.String.
-
-Require Import Preamble.
-Require Import General.
-
-Require Import NaturalDeduction.
-Require Import NaturalDeductionToLatex.
-
-Require Import HaskKinds.
-Require Import HaskCoreLiterals.
-Require Import HaskCoreVars.
-Require Import HaskCoreTypes.
-Require Import HaskCore.
-Require Import HaskWeakVars.
-Require Import HaskWeakTypes.
-Require Import HaskWeak.
-Require Import HaskStrongTypes.
-Require Import HaskStrong.
-Require Import HaskProof.
-Require Import HaskCoreToWeak.
-Require Import HaskWeakToStrong.
-Require Import HaskStrongToProof.
-Require Import HaskProofToStrong.
-Require Import HaskProofToLatex.
-Require Import HaskStrongToWeak.
-Require Import HaskWeakToCore.
-
-Open Scope string_scope.
-Extraction Language Haskell.
-
-(* I try to reuse Haskell types mostly to get the "deriving Show" aspect *)
-Extract Inductive option => "Prelude.Maybe" [ "Prelude.Just" "Prelude.Nothing" ].
-Extract Inductive list => "([])" [ "([])" "(:)" ].
-(*Extract Inductive vec => "([])" [ "([])" "(:)" ].*)
-(*Extract Inductive Tree => "([])" [ "([])" "(:)" ].*)
-Extract Inlined Constant map => "Prelude.map".
-Extract Inductive string => "Prelude.String" [ "([])" "(:)" ].
-Extract Inductive prod => "(,)" [ "(,)" ].
-Extract Inductive sum => "Prelude.Either" [ "Prelude.Left" "Prelude.Right" ].
-Extract Inductive sumbool => "Prelude.Bool" [ "Prelude.True" "Prelude.False" ].
-Extract Inductive bool => "Prelude.Bool" [ "Prelude.True" "Prelude.False" ].
-Extract Inductive unit => "()" [ "()" ].
-Extract Inlined Constant string_dec => "(==)".
-Extract Inlined Constant ascii_dec => "(==)".
-Extract Inductive string => "Prelude.String" [ "[]" "(:)" ].
-
-(* adapted from ExtrOcamlString.v *)
-Extract Inductive ascii => "Prelude.Char"
-[
-"{- If this appears, you're using Ascii internals. Please don't -} (\ b0 b1 b2 b3 b4 b5 b6 b7 -> let f b i = if b then 1 `shiftL` i else 0 in Data.Char.chr (f b0 0 .|. f b1 1 .|. f b2 2 .|. f b3 3 .|. f b4 4 .|. f b5 5 .|. f b6 6 .|. f b7 7))"
-]
-"{- If this appears, you're using Ascii internals. Please don't -} (\ f c -> let n = Char.code c in let h i = (n .&. (1 `shiftL` i)) /= 0 in f (h 0) (h 1) (h 2) (h 3) (h 4) (h 5) (h 6) (h 7))".
-Extract Constant zero => "'\000'".
-Extract Constant one => "'\001'".
-Extract Constant shift => "\ b c -> Data.Char.chr (((Char.code c) `shiftL` 1) .&. 255 .|. if b then 1 else 0)".
-
-Unset Extraction Optimize.
-Unset Extraction AutoInline.
-
-Axiom fail : forall {A}, string -> A.
- Extract Inlined Constant fail => "Prelude.error".
-
-Section core2proof.
- Context (ce:@CoreExpr CoreVar).
-
- Definition Γ : TypeEnv := nil.
-
- Definition Δ : CoercionEnv Γ := nil.
-
- Definition φ : CoreVar->HaskTyVar Γ :=
- fun cv => (fun TV env => fail "unbound tyvar").
- (*fun tv => error ("tried to get the representative of an unbound tyvar:" +++ (getCoreVarOccString tv)).*)
-
- Definition ψ : CoreVar->HaskCoVar nil Δ
- := fun cv => fail ("tried to get the representative of an unbound covar!" (*+++ (getTypeVarOccString cv)*)).
-
- (* We need to be able to resolve unbound exprvars, but we can be sure their types will have no
- * free tyvars in them *)
- Definition ξ : WeakExprVar -> WeakType * list WeakTypeVar
- := fun (v:WeakExprVar) => ((v:WeakType),nil).
-
- Definition header : string :=
- "\documentclass[9pt]{article}"+++eol+++
- "\usepackage{amsmath}"+++eol+++
- "\usepackage{amssymb}"+++eol+++
- "\usepackage{proof}"+++eol+++
- "\usepackage{mathpartir}"+++eol+++
- "\usepackage{trfrac}"+++eol+++
- "\def\code#1#2{\Box_{#1} #2}"+++eol+++
- "\usepackage[paperwidth=20in,centering]{geometry}"+++eol+++
- "\usepackage[displaymath,tightpage,active]{preview}"+++eol+++
- "\begin{document}"+++eol+++
- "\begin{preview}"+++eol.
-
- Definition footer : string :=
- eol+++"\end{preview}"+++
- eol+++"\end{document}"+++
- eol.
-
- Definition handleExpr (ce:@CoreExpr CoreVar) : string :=
- match coreExprToWeakExpr ce with
- | Error s => fail ("unable to convert GHC Core expression into Coq HaskWeak expression due to:\n "+++s)
- | OK me =>
- match weakExprToStrongExpr (*(makeClosedExpression me)*) me Γ Δ φ ψ ξ nil with
- | Indexed_Error s => fail ("unable to convert HaskWeak to HaskStrong due to:\n "+++s)
- | Indexed_OK τ e => match e with
- | Error s => fail ("unable to convert HaskWeak to HaskStrong due to:\n "+++s)
- | OK e' =>
- eol+++"$$"+++
- nd_ml_toLatex (@expr2proof _ _ _ _ _ _ e')+++
- "$$"+++eol
- end
- end
- end.
-
- Definition handleBind (bind:@CoreBind CoreVar) : string :=
- match bind with
- | CoreNonRec _ e => handleExpr e
- | CoreRec lbe => fold_left (fun x y => x+++eol+++eol+++y) (map (fun x => handleExpr (snd x)) lbe) ""
- end.
-
- Definition coqPassCoreToString (lbinds:list (@CoreBind CoreVar)) : string :=
- header +++
- (fold_left (fun x y => x+++eol+++eol+++y) (map handleBind lbinds) "")
- +++ footer.
-
- Definition coqPassCoreToCore (lbinds:list (@CoreBind CoreVar)) : list (@CoreBind CoreVar) :=
- lbinds.
-
-End core2proof.
-