X-Git-Url: http://git.megacz.com/?p=coq-hetmet.git;a=blobdiff_plain;f=src%2FHaskWeakToStrong.v;h=0acc0af06f750046066236e227305f253a00d48b;hp=1b348657c654a276702f68eefe878d6b7047d097;hb=489b12c6c491b96c37839610d33fbdf666ee527f;hpb=ec8ee5cde986e5b38bcae38cda9e63eba94f1d9f diff --git a/src/HaskWeakToStrong.v b/src/HaskWeakToStrong.v index 1b34865..0acc0af 100644 --- a/src/HaskWeakToStrong.v +++ b/src/HaskWeakToStrong.v @@ -10,7 +10,8 @@ Require Import Coq.Strings.String. Require Import Coq.Lists.List. Require Import Coq.Init.Specif. Require Import HaskKinds. -Require Import HaskLiteralsAndTyCons. +Require Import HaskLiterals. +Require Import HaskTyCons. Require Import HaskWeakTypes. Require Import HaskWeakVars. Require Import HaskWeak. @@ -18,12 +19,19 @@ Require Import HaskWeakToCore. Require Import HaskStrongTypes. Require Import HaskStrong. Require Import HaskCoreVars. +Require Import HaskCoreToWeak. +Require Import HaskCoreTypes. Open Scope string_scope. Definition TyVarResolver Γ := forall wt:WeakTypeVar, ???(HaskTyVar Γ wt). Definition CoVarResolver Γ Δ := forall wt:WeakCoerVar, ???(HaskCoVar Γ Δ). -Definition upφ {Γ}(tv:WeakTypeVar)(φ:TyVarResolver Γ) : TyVarResolver ((tv:Kind)::Γ). +Definition lamer {a}{b}{c}{κ}(lt:HaskType (app (app a b) c) κ) : HaskType (app a (app b c)) κ. + rewrite <- ass_app in lt. + exact lt. + Defined. + +Definition upPhi {Γ}(tv:WeakTypeVar)(φ:TyVarResolver Γ) : TyVarResolver ((tv:Kind)::Γ). unfold TyVarResolver. refine (fun tv' => if eqd_dec tv tv' @@ -32,12 +40,12 @@ Definition upφ {Γ}(tv:WeakTypeVar)(φ:TyVarResolver Γ) : TyVarResolver ((tv:K rewrite <- _H; apply fresh. Defined. -Definition upφ' {Γ}(tvs:list WeakTypeVar)(φ:TyVarResolver Γ) +Definition upPhi2 {Γ}(tvs:list WeakTypeVar)(φ:TyVarResolver Γ) : (TyVarResolver (app (map (fun tv:WeakTypeVar => tv:Kind) tvs) Γ)). induction tvs. apply φ. simpl. - apply upφ. + apply upPhi. apply IHtvs. Defined. @@ -52,7 +60,7 @@ Definition substPhi {Γ:TypeEnv}(κ κ':Kind)(θ:HaskType Γ κ) : HaskType (κ: apply X. Defined. -Definition substφ {Γ:TypeEnv}(lk:list Kind)(θ:IList _ (fun κ => HaskType Γ κ) lk){κ} : HaskType (app lk Γ) κ -> HaskType Γ κ. +Definition substphi {Γ:TypeEnv}(lk:list Kind)(θ:IList _ (fun κ => HaskType Γ κ) lk){κ} : HaskType (app lk Γ) κ -> HaskType Γ κ. induction lk. intro q; apply q. simpl. @@ -69,8 +77,8 @@ Definition substφ {Γ:TypeEnv}(lk:list Kind)(θ:IList _ (fun κ => HaskType Γ (* this is a StrongAltCon plus some stuff we know about StrongAltCons which we've built ourselves *) Record StrongAltConPlusJunk {tc:TyCon} := { sacpj_sac : @StrongAltCon tc -; sacpj_φ : forall Γ (φ:TyVarResolver Γ ), (TyVarResolver (sac_Γ sacpj_sac Γ)) -; sacpj_ψ : forall Γ Δ atypes (ψ:CoVarResolver Γ Δ), CoVarResolver _ (sac_Δ sacpj_sac Γ atypes (weakCK'' Δ)) +; sacpj_phi : forall Γ (φ:TyVarResolver Γ ), (TyVarResolver (sac_gamma sacpj_sac Γ)) +; sacpj_psi : forall Γ Δ atypes (ψ:CoVarResolver Γ Δ), CoVarResolver _ (sac_delta sacpj_sac Γ atypes (weakCK'' Δ)) }. Implicit Arguments StrongAltConPlusJunk [ ]. Coercion sacpj_sac : StrongAltConPlusJunk >-> StrongAltCon. @@ -81,9 +89,9 @@ Variable emptyφ : TyVarResolver nil. Definition mkPhi (lv:list WeakTypeVar) : (TyVarResolver (map (fun x:WeakTypeVar => x:Kind) lv)). - set (upφ'(Γ:=nil) lv emptyφ) as φ'. - rewrite <- app_nil_end in φ'. - apply φ'. + set (upPhi2(Γ:=nil) lv emptyφ) as φ2. + rewrite <- app_nil_end in φ2. + apply φ2. Defined. Definition dataConExKinds dc := vec_map (fun x:WeakTypeVar => (x:Kind)) (list2vec (dataConExTyVars dc)). @@ -123,8 +131,9 @@ Definition weakTypeToType : forall {Γ:TypeEnv}(φ:TyVarResolver Γ)(t:WeakType) | WIParam _ ty => let case_WIParam := tt in Error "weakTypeToType: WIParam not implemented" | WAppTy t1 t2 => let case_WAppTy := tt in weakTypeToType _ φ t1 >>= fun t1' => weakTypeToType _ φ t2 >>= fun t2' => _ | WTyVarTy v => let case_WTyVarTy := tt in φ v >>= fun v' => _ - | WForAllTy wtv t => let case_WForAllTy := tt in weakTypeToType _ (upφ wtv φ) t >>= fun t => _ - | WCodeTy ec tbody => let case_WCodeTy := tt in weakTypeToType _ φ tbody >>= fun tbody' => φ (@fixkind ★ ec) >>= fun ec' => _ + | WForAllTy wtv t => let case_WForAllTy := tt in weakTypeToType _ (upPhi wtv φ) t >>= fun t => _ + | WCodeTy ec tbody => let case_WCodeTy := tt in weakTypeToType _ φ tbody + >>= fun tbody' => φ (@fixkind ECKind ec) >>= fun ec' => _ | WCoFunTy t1 t2 t3 => let case_WCoFunTy := tt in weakTypeToType _ φ t1 >>= fun t1' => weakTypeToType _ φ t2 >>= fun t2' => @@ -139,7 +148,11 @@ Definition weakTypeToType : forall {Γ:TypeEnv}(φ:TyVarResolver Γ)(t:WeakType) end | tx::lt' => weakTypeToType Γ φ tx >>= fun t' => match lk as LK return ???(forall TV (ite:InstantiatedTypeEnv TV Γ), @RawHaskTypeList TV LK) with - | nil => Error "WTyFunApp applied to too many types" + | nil => Error ("WTyFunApp applied to too many types"(* +++ eol +++ + " tyCon= " +++ toString tc +++ eol +++ + " tyConKindArgs= " +++ toString (fst (tyFunKind tc)) +++ eol +++ + " tyConKindResult= " +++ toString (snd (tyFunKind tc)) +++ eol +++ + " types= " +++ toString lt +++ eol*)) | k::lk' => weakTypeListToTypeList lk' lt' >>= fun rhtl' => let case_weakTypeListToTypeList := tt in _ end @@ -163,7 +176,7 @@ Definition weakTypeToType : forall {Γ:TypeEnv}(φ:TyVarResolver Γ)(t:WeakType) try (matchThings k1'1 k2' "Kind mismatch in WAppTy: "; subst; apply OK; apply (haskTypeOfSomeKind (fun TV env => TApp (t1' TV env) (t2' TV env)))); apply (Error ("Kind mismatch in WAppTy: "+++err)). - + destruct case_weakTypeListToTypeList. apply (addErrorMessage "case_weakTypeListToTypeList"). destruct t' as [ k' t' ]. @@ -176,7 +189,7 @@ Definition weakTypeToType : forall {Γ:TypeEnv}(φ:TyVarResolver Γ)(t:WeakType) apply OK. eapply haskTypeOfSomeKind. unfold HaskType; intros. - apply TyFunApp. + apply (TyFunApp tc (fst (tyFunKind tc)) (snd (tyFunKind tc))). apply lt'. apply X. @@ -233,9 +246,9 @@ Definition weakTypeToType' {Γ} : IList Kind (HaskType Γ) (vec2list (tyConKinds intro ct. apply (addErrorMessage "weakTypeToType'"). set (ilmap (@weakT' _ (vec2list (dataConExKinds dc))) avars) as avars'. - set (@substφ _ _ avars') as q. - set (upφ' (tyConTyVars tc) (mkPhi (dataConExTyVars dc))) as φ'. - set (@weakTypeToType _ φ' ct) as t. + set (@substphi _ _ avars') as q. + set (upPhi2 (tyConTyVars tc) (mkPhi (dataConExTyVars dc))) as φ2. + set (@weakTypeToType _ φ2 ct) as t. destruct t as [|t]; try apply (Error error_message). destruct t as [tk t]. matchThings tk ★ "weakTypeToType'". @@ -320,17 +333,17 @@ Lemma weakCV' : forall {Γ}{Δ} Γ', Definition mkStrongAltConPlusJunk : StrongAltConPlusJunk tc. refine {| sacpj_sac := mkStrongAltCon - ; sacpj_φ := fun Γ φ => (fun htv => φ htv >>= fun htv' => OK (weakV' htv')) - ; sacpj_ψ := + ; sacpj_phi := fun Γ φ => (fun htv => φ htv >>= fun htv' => OK (weakV' htv')) + ; sacpj_psi := fun Γ Δ avars ψ => (fun htv => ψ htv >>= fun htv' => OK (_ (weakCV' (vec2list (sac_ekinds mkStrongAltCon)) htv'))) |}. intro. - unfold sac_Γ. + unfold sac_gamma. unfold HaskCoVar in *. intros. apply (x TV CV env). simpl in cenv. - unfold sac_Δ in *. + unfold sac_delta in *. unfold InstantiatedCoercionEnv in *. apply vec_chop' in cenv. apply cenv. @@ -364,13 +377,13 @@ Definition mkStrongAltConPlusJunk' (tc : TyCon)(alt:WeakAltCon) : ???(@StrongAlt ; sac_altcon := WeakLitAlt h |} |}. intro; intro φ; apply φ. - intro; intro; intro; intro ψ. simpl. unfold sac_Γ; simpl. unfold sac_Δ; simpl. + intro; intro; intro; intro ψ. simpl. unfold sac_gamma; simpl. unfold sac_delta; simpl. rewrite weakCK'_nil_inert. apply ψ. apply OK; refine {| sacpj_sac := {| sac_ekinds := vec_nil ; sac_coercions := fun _ _ => vec_nil ; sac_types := fun _ _ => vec_nil ; sac_altcon := WeakDEFAULT |} |}. intro; intro φ; apply φ. - intro; intro; intro; intro ψ. simpl. unfold sac_Γ; simpl. unfold sac_Δ; simpl. + intro; intro; intro; intro ψ. simpl. unfold sac_gamma; simpl. unfold sac_delta; simpl. rewrite weakCK'_nil_inert. apply ψ. Defined. @@ -380,7 +393,7 @@ Definition weakExprVarToWeakType : WeakExprVar -> WeakType := Variable weakCoercionToHaskCoercion : forall Γ Δ κ, WeakCoercion -> HaskCoercion Γ Δ κ. -Definition weakψ {Γ}{Δ:CoercionEnv Γ} {κ}(ψ:WeakCoerVar -> ???(HaskCoVar Γ Δ)) : +Definition weakPsi {Γ}{Δ:CoercionEnv Γ} {κ}(ψ:WeakCoerVar -> ???(HaskCoVar Γ Δ)) : WeakCoerVar -> ???(HaskCoVar Γ (κ::Δ)). intros. refine (ψ X >>= _). @@ -392,12 +405,10 @@ Definition weakψ {Γ}{Δ:CoercionEnv Γ} {κ}(ψ:WeakCoerVar -> ???(HaskCoVar Defined. (* attempt to "cast" an expression by simply checking if it already had the desired type, and failing otherwise *) -Definition castExpr (we:WeakExpr)(err_msg:string) {Γ} {Δ} {ξ} {τ} τ' (e:@Expr _ CoreVarEqDecidable Γ Δ ξ τ) - : ???(@Expr _ CoreVarEqDecidable Γ Δ ξ τ'). +Definition castExpr (we:WeakExpr)(err_msg:string) {Γ} {Δ} {ξ} {τ} {l} τ' l' (e:@Expr _ CoreVarEqDecidable Γ Δ ξ τ l) + : ???(@Expr _ CoreVarEqDecidable Γ Δ ξ τ' l'). apply (addErrorMessage ("castExpr " +++ err_msg)). intros. - destruct τ as [τ l]. - destruct τ' as [τ' l']. destruct (eqd_dec l l'); [ idtac | apply (Error ("level mismatch in castExpr, invoked by "+++err_msg+++eol+++ " got: " +++(fold_left (fun x y => y+++","+++y) (map (toString ○ haskTyVarToType) l) "")+++eol+++ @@ -414,7 +425,7 @@ Definition castExpr (we:WeakExpr)(err_msg:string) {Γ} {Δ} {ξ} {τ} τ' (e:@Ex Defined. Definition coVarKind (wcv:WeakCoerVar) : Kind := - match wcv with weakCoerVar _ κ _ _ => κ end. + match wcv with weakCoerVar _ t _ => (kindOfCoreType (weakTypeToCoreType t)) end. Coercion coVarKind : WeakCoerVar >-> Kind. Definition weakTypeToTypeOfKind : forall {Γ:TypeEnv}(φ:TyVarResolver Γ)(t:WeakType)(κ:Kind), ???(HaskType Γ κ). @@ -510,7 +521,22 @@ Fixpoint doesWeakVarOccurAlts (wev:WeakExprVar) | T_Branch b1 b2 => doesWeakVarOccurAlts wev b1 || doesWeakVarOccurAlts wev b2 end. -(*Definition ensureCaseBindersAreNotUsed (we:WeakExpr) : UniqM WeakExpr := FIXME *) +Definition checkDistinct : + forall {V}(EQ:EqDecidable V)(lv:list V), ???(distinct lv). + intros. + set (distinct_decidable lv) as q. + destruct q. + exact (OK d). + exact (Error "checkDistinct failed"). + Defined. + +(* FIXME: check the kind of the type of the weakexprvar to support >0 *) +Definition mkGlobal Γ (τ:HaskType Γ ★) (wev:WeakExprVar) : Global Γ. + refine {| glob_kinds := nil |}. + apply wev. + intros. + apply τ. + Defined. Definition weakExprToStrongExpr : forall (Γ:TypeEnv) @@ -521,7 +547,7 @@ Definition weakExprToStrongExpr : forall (ig:CoreVar -> bool) (τ:HaskType Γ ★) (lev:HaskLevel Γ), - WeakExpr -> ???(@Expr _ CoreVarEqDecidable Γ Δ ξ (τ @@ lev) ). + WeakExpr -> ???(@Expr _ CoreVarEqDecidable Γ Δ ξ τ lev ). refine (( fix weakExprToStrongExpr (Γ:TypeEnv) @@ -532,44 +558,44 @@ Definition weakExprToStrongExpr : forall (ig:CoreVar -> bool) (τ:HaskType Γ ★) (lev:HaskLevel Γ) - (we:WeakExpr) : ???(@Expr _ CoreVarEqDecidable Γ Δ ξ (τ @@ lev) ) := + (we:WeakExpr) : ???(@Expr _ CoreVarEqDecidable Γ Δ ξ τ lev ) := addErrorMessage ("in weakExprToStrongExpr " +++ toString we) match we with | WEVar v => if ig v - then OK (EGlobal Γ Δ ξ (τ@@lev) v) - else castExpr we ("WEVar "+++toString (v:CoreVar)) (τ @@ lev) (EVar Γ Δ ξ v) + then OK ((EGlobal Γ Δ ξ (mkGlobal Γ τ v) INil lev) : Expr Γ Δ ξ τ lev) + else castExpr we ("WEVar "+++toString (v:CoreVar)) τ lev (EVar Γ Δ ξ v) - | WELit lit => castExpr we ("WELit "+++toString lit) (τ @@ lev) (ELit Γ Δ ξ lit lev) + | WELit lit => castExpr we ("WELit "+++toString lit) τ lev (ELit Γ Δ ξ lit lev) | WELam ev ebody => weakTypeToTypeOfKind φ ev ★ >>= fun tv => weakTypeOfWeakExpr ebody >>= fun tbody => weakTypeToTypeOfKind φ tbody ★ >>= fun tbody' => - let ξ' := update_ξ ξ lev (((ev:CoreVar),tv)::nil) in + let ξ' := update_xi ξ lev (((ev:CoreVar),tv)::nil) in let ig' := update_ig ig ((ev:CoreVar)::nil) in weakExprToStrongExpr Γ Δ φ ψ ξ' ig' tbody' lev ebody >>= fun ebody' => - castExpr we "WELam" (τ@@lev) (ELam Γ Δ ξ tv tbody' lev ev ebody') + castExpr we "WELam" τ lev (ELam Γ Δ ξ tv tbody' lev ev ebody') | WEBrak _ ec e tbody => φ (`ec) >>= fun ec' => weakTypeToTypeOfKind φ tbody ★ >>= fun tbody' => weakExprToStrongExpr Γ Δ φ ψ ξ ig tbody' ((ec')::lev) e >>= fun e' => - castExpr we "WEBrak" (τ@@lev) (EBrak Γ Δ ξ ec' tbody' lev e') + castExpr we "WEBrak" τ lev (EBrak Γ Δ ξ ec' tbody' lev e') | WEEsc _ ec e tbody => φ ec >>= fun ec'' => weakTypeToTypeOfKind φ tbody ★ >>= fun tbody' => match lev with | nil => Error "ill-leveled escapification" | ec'::lev' => weakExprToStrongExpr Γ Δ φ ψ ξ ig (<[ ec' |- tbody' ]>) lev' e - >>= fun e' => castExpr we "WEEsc" (τ@@lev) (EEsc Γ Δ ξ ec' tbody' lev' e') + >>= fun e' => castExpr we "WEEsc" τ lev (EEsc Γ Δ ξ ec' tbody' lev' e') end | WECSP _ ec e tbody => Error "FIXME: CSP not supported beyond HaskWeak stage" - | WENote n e => weakExprToStrongExpr Γ Δ φ ψ ξ ig τ lev e >>= fun e' => OK (ENote _ _ _ _ n e') + | WENote n e => weakExprToStrongExpr Γ Δ φ ψ ξ ig τ lev e >>= fun e' => OK (ENote _ _ _ _ _ n e') | WELet v ve ebody => weakTypeToTypeOfKind φ v ★ >>= fun tv => weakExprToStrongExpr Γ Δ φ ψ ξ ig tv lev ve >>= fun ve' => - weakExprToStrongExpr Γ Δ φ ψ (update_ξ ξ lev (((v:CoreVar),tv)::nil)) + weakExprToStrongExpr Γ Δ φ ψ (update_xi ξ lev (((v:CoreVar),tv)::nil)) (update_ig ig ((v:CoreVar)::nil)) τ lev ebody >>= fun ebody' => OK (ELet _ _ _ tv _ lev (v:CoreVar) ve' ebody') @@ -580,21 +606,23 @@ Definition weakExprToStrongExpr : forall weakExprToStrongExpr Γ Δ φ ψ ξ ig (t2'--->τ) lev e1 >>= fun e1' => OK (EApp _ _ _ _ _ _ e1' e2') - | WETyLam tv e => let φ' := upφ tv φ in + | WETyLam tv e => let φ2 := upPhi tv φ in weakTypeOfWeakExpr e >>= fun te => - weakTypeToTypeOfKind φ' te ★ >>= fun τ' => - weakExprToStrongExpr _ (weakCE Δ) φ' - (fun x => (ψ x) >>= fun y => OK (weakCV y)) (weakLT○ξ) ig _ (weakL lev) e - >>= fun e' => castExpr we "WETyLam2" _ (ETyLam Γ Δ ξ tv (mkTAll' τ') lev e') + weakTypeToTypeOfKind φ2 te ★ >>= fun τ' => + weakExprToStrongExpr _ (weakCE_(n:=O) Δ) φ2 + (fun x => (ψ x) >>= fun y => + OK (weakCV_ y)) (weakLT_○ξ) ig _ (weakL_ lev) e + >>= fun e' => castExpr we "WETyLam2" _ _ + (ETyLam Γ Δ ξ tv (mkTAll' τ') lev 0 e') | WETyApp e t => weakTypeOfWeakExpr e >>= fun te => match te with | WForAllTy wtv te' => - let φ' := upφ wtv φ in - weakTypeToTypeOfKind φ' te' ★ >>= fun te'' => + let φ2 := upPhi wtv φ in + weakTypeToTypeOfKind φ2 te' ★ >>= fun te'' => weakExprToStrongExpr Γ Δ φ ψ ξ ig (mkTAll te'') lev e >>= fun e' => weakTypeToTypeOfKind φ t (wtv:Kind) >>= fun t' => - castExpr we "WETyApp" _ (ETyApp Γ Δ wtv (mkTAll' te'') t' ξ lev e') + castExpr we "WETyApp" _ _ (ETyApp Γ Δ wtv (mkTAll' te'') t' ξ lev e') | _ => Error ("weakTypeToType: WETyApp body with type "+++toString te) end @@ -607,30 +635,30 @@ Definition weakExprToStrongExpr : forall weakTypeToTypeOfKind φ t2 κ >>= fun t2'' => weakTypeToTypeOfKind φ t3 ★ >>= fun t3'' => weakExprToStrongExpr Γ Δ φ ψ ξ ig (t1'' ∼∼ t2'' ⇒ τ) lev e >>= fun e' => - castExpr we "WECoApp" _ e' >>= fun e'' => + castExpr we "WECoApp" _ _ e' >>= fun e'' => OK (ECoApp Γ Δ κ t1'' t2'' (weakCoercionToHaskCoercion _ _ _ co) τ ξ lev e'') end | _ => Error ("weakTypeToType: WECoApp body with type "+++toString te) end - | WECoLam cv e => let (_,_,t1,t2) := cv in + | WECoLam cv e => let (_,t1,t2) := cv in weakTypeOfWeakExpr e >>= fun te => weakTypeToTypeOfKind φ te ★ >>= fun te' => weakTypeToTypeOfKind φ t1 cv >>= fun t1' => weakTypeToTypeOfKind φ t2 cv >>= fun t2' => - weakExprToStrongExpr Γ (_ :: Δ) φ (weakψ ψ) ξ ig te' lev e >>= fun e' => - castExpr we "WECoLam" _ (ECoLam Γ Δ cv te' t1' t2' ξ lev e') + weakExprToStrongExpr Γ (_ :: Δ) φ (weakPsi ψ) ξ ig te' lev e >>= fun e' => + castExpr we "WECoLam" _ _ (ECoLam Γ Δ cv te' t1' t2' ξ lev e') | WECast e co => let (t1,t2) := weakCoercionTypes co in weakTypeToTypeOfKind φ t1 ★ >>= fun t1' => weakTypeToTypeOfKind φ t2 ★ >>= fun t2' => weakExprToStrongExpr Γ Δ φ ψ ξ ig t1' lev e >>= fun e' => - castExpr we "WECast" _ + castExpr we "WECast" _ _ (ECast Γ Δ ξ t1' t2' (weakCoercionToHaskCoercion _ _ _ co) lev e') | WELetRec rb e => - let ξ' := update_ξ ξ lev _ in + let ξ' := update_xi ξ lev _ in let ig' := update_ig ig (map (fun x:(WeakExprVar*_) => (fst x):CoreVar) (leaves rb)) in let binds := (fix binds (t:Tree ??(WeakExprVar * WeakExpr)) @@ -644,8 +672,9 @@ Definition weakExprToStrongExpr : forall OK (ELR_branch Γ Δ ξ' lev _ _ b1' b2') end) rb in binds >>= fun binds' => + checkDistinct CoreVarEqDecidable (map (@fst _ _) (leaves (varsTypes rb φ))) >>= fun rb_distinct => weakExprToStrongExpr Γ Δ φ ψ ξ' ig' τ lev e >>= fun e' => - OK (ELetRec Γ Δ ξ lev τ _ binds' e') + OK (ELetRec Γ Δ ξ lev τ _ _ binds' e') | WECase vscrut escrut tbranches tc avars alts => weakTypeOfWeakExpr escrut >>= fun tscrut => @@ -656,7 +685,7 @@ Definition weakExprToStrongExpr : forall weakTypeToTypeOfKind φ tbranches ★ >>= fun tbranches' => (fix mkTree (t:Tree ??(WeakAltCon*list WeakTypeVar*list WeakCoerVar*list WeakExprVar*WeakExpr)) : ???(Tree ??{ sac : _ & {scb : StrongCaseBranchWithVVs CoreVar CoreVarEqDecidable tc avars' sac & - Expr (sac_Γ sac Γ) (sac_Δ sac Γ avars' (weakCK'' Δ))(scbwv_ξ scb ξ lev)(weakLT' (tbranches' @@ lev))}}) := + Expr (sac_gamma sac Γ) (sac_delta sac Γ avars' (weakCK'' Δ))(scbwv_xi scb ξ lev)(weakT' tbranches')(weakL' lev)}}) := match t with | T_Leaf None => OK [] | T_Leaf (Some (ac,extyvars,coervars,exprvars,ebranch)) => @@ -665,9 +694,9 @@ Definition weakExprToStrongExpr : forall >>= fun exprvars' => (let case_pf := tt in _) >>= fun pf => let scb := @Build_StrongCaseBranchWithVVs CoreVar CoreVarEqDecidable tc Γ avars' sac exprvars' pf in - weakExprToStrongExpr (sac_Γ sac Γ) (sac_Δ sac Γ avars' (weakCK'' Δ)) (sacpj_φ sac _ φ) - (sacpj_ψ sac _ _ avars' ψ) - (scbwv_ξ scb ξ lev) + weakExprToStrongExpr (sac_gamma sac Γ) (sac_delta sac Γ avars' (weakCK'' Δ)) (sacpj_phi sac _ φ) + (sacpj_psi sac _ _ avars' ψ) + (scbwv_xi scb ξ lev) (update_ig ig (map (@fst _ _) (vec2list (scbwv_varstypes scb)))) (weakT' tbranches') (weakL' lev) ebranch >>= fun ebranch' => let case_case := tt in OK [ _ ] @@ -678,7 +707,7 @@ Definition weakExprToStrongExpr : forall end) alts >>= fun tree => weakExprToStrongExpr Γ Δ φ ψ ξ ig (caseType tc avars') lev escrut >>= fun escrut' => - castExpr we "ECase" (τ@@lev) (ECase Γ Δ ξ lev tc tbranches' avars' escrut' tree) + castExpr we "ECase" τ lev (ECase Γ Δ ξ lev tc tbranches' avars' escrut' tree) end)); try clear binds; try apply ConcatenableString. destruct case_some. @@ -700,6 +729,8 @@ Definition weakExprToStrongExpr : forall destruct (ξ c). simpl. apply e1. + rewrite mapleaves. + apply rb_distinct. destruct case_pf. set (distinct_decidable (vec2list exprvars')) as dec.