X-Git-Url: http://git.megacz.com/?p=coq-hetmet.git;a=blobdiff_plain;f=src%2FHaskProofToStrong.v;h=b16d4a8a00d1004881d5f6fa25dd9c7862ea332c;hp=299a83be3703e2cded3a29e49bbeafc697dca2d4;hb=c90b598203ef23bf8d44d6b5b4a5a4b5901039cf;hpb=1a2754d2e135ef3c5fd7ef817e1129af93b533a5 diff --git a/src/HaskProofToStrong.v b/src/HaskProofToStrong.v index 299a83b..b16d4a8 100644 --- a/src/HaskProofToStrong.v +++ b/src/HaskProofToStrong.v @@ -509,6 +509,242 @@ Section HaskProofToStrong. Defined. + Lemma manyFresh : forall Γ Σ (ξ0:VV -> LeveledHaskType Γ ★), + FreshM { vars : _ & { ξ : VV -> LeveledHaskType Γ ★ & Σ = mapOptionTree ξ vars } }. + intros Γ Σ. + induction Σ; intro ξ. + destruct a. + destruct l as [τ l]. + set (fresh_lemma' Γ [τ] [] [] ξ l (refl_equal _)) as q. + refine (q >>>= fun q' => return _). + apply FreshMon. + clear q. + destruct q' as [varstypes [pf1 [pf2 distpf]]]. + exists (mapOptionTree (@fst _ _) varstypes). + exists (update_xi ξ l (leaves varstypes)). + symmetry; auto. + refine (return _). + exists []. + exists ξ; auto. + refine (bind f1 = IHΣ1 ξ ; _). + apply FreshMon. + destruct f1 as [vars1 [ξ1 pf1]]. + refine (bind f2 = IHΣ2 ξ1 ; _). + apply FreshMon. + destruct f2 as [vars2 [ξ2 pf22]]. + refine (return _). + exists (vars1,,vars2). + exists ξ2. + simpl. + rewrite pf22. + rewrite pf1. + admit. (* freshness assumption *) + Defined. + + Definition rlet Γ Δ Σ₁ Σ₂ σ₁ σ₂ p : + forall (X_ : ITree Judg judg2exprType + ([Γ > Δ > Σ₁ |- [σ₁] @ p],, [Γ > Δ > [σ₁ @@ p],, Σ₂ |- [σ₂] @ p])), + ITree Judg judg2exprType [Γ > Δ > Σ₁,, Σ₂ |- [σ₂] @ p]. + intros. + apply ILeaf. + simpl in *; intros. + destruct vars; try destruct o; inversion H. + + refine (fresh_lemma _ ξ _ _ σ₁ p H2 >>>= (fun pf => _)). + apply FreshMon. + + destruct pf as [ vnew [ pf1 pf2 ]]. + set (update_xi ξ p (((vnew, σ₁ )) :: nil)) as ξ' in *. + inversion X_. + apply ileaf in X. + apply ileaf in X0. + simpl in *. + + refine (X ξ vars1 _ >>>= fun X0' => _). + apply FreshMon. + simpl. + auto. + + refine (X0 ξ' ([vnew],,vars2) _ >>>= fun X1' => _). + apply FreshMon. + simpl. + rewrite pf2. + rewrite pf1. + reflexivity. + apply FreshMon. + + apply ILeaf. + apply ileaf in X1'. + apply ileaf in X0'. + simpl in *. + apply ELet with (ev:=vnew)(tv:=σ₁). + apply X0'. + apply X1'. + Defined. + + Definition vartree Γ Δ Σ lev ξ : + forall vars, Σ @@@ lev = mapOptionTree ξ vars -> + ITree (HaskType Γ ★) (fun t : HaskType Γ ★ => Expr Γ Δ ξ t lev) Σ. + induction Σ; intros. + destruct a. + intros; simpl in *. + apply ILeaf. + destruct vars; try destruct o; inversion H. + set (EVar Γ Δ ξ v) as q. + rewrite <- H1 in q. + apply q. + intros. + apply INone. + intros. + destruct vars; try destruct o; inversion H. + apply IBranch. + eapply IHΣ1. + apply H1. + eapply IHΣ2. + apply H2. + Defined. + + + Definition rdrop Γ Δ Σ₁ Σ₁₂ a lev : + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- a,,Σ₁₂ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- a @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *. + intros. + set (X ξ vars H) as q. + simpl in q. + refine (q >>>= fun q' => return _). + apply FreshMon. + inversion q'. + apply X0. + Defined. + + Definition rdrop' Γ Δ Σ₁ Σ₁₂ a lev : + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- Σ₁₂,,a @ lev] -> + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- a @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *. + intros. + set (X ξ vars H) as q. + simpl in q. + refine (q >>>= fun q' => return _). + apply FreshMon. + inversion q'. + auto. + Defined. + + Definition rdrop'' Γ Δ Σ₁ Σ₁₂ lev : + ITree Judg judg2exprType [Γ > Δ > [],,Σ₁ |- Σ₁₂ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- Σ₁₂ @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *; intros. + eapply X with (vars:=[],,vars). + rewrite H; reflexivity. + Defined. + + Definition rdrop''' Γ Δ a Σ₁ Σ₁₂ lev : + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- Σ₁₂ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > a,,Σ₁ |- Σ₁₂ @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *; intros. + destruct vars; try destruct o; inversion H. + eapply X with (vars:=vars2). + auto. + Defined. + + Definition rassoc Γ Δ Σ₁ a b c lev : + ITree Judg judg2exprType [Γ > Δ > ((a,,b),,c) |- Σ₁ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > (a,,(b,,c)) |- Σ₁ @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *; intros. + destruct vars; try destruct o; inversion H. + destruct vars2; try destruct o; inversion H2. + apply X with (vars:=(vars1,,vars2_1),,vars2_2). + subst; reflexivity. + Defined. + + Definition rassoc' Γ Δ Σ₁ a b c lev : + ITree Judg judg2exprType [Γ > Δ > (a,,(b,,c)) |- Σ₁ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > ((a,,b),,c) |- Σ₁ @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *; intros. + destruct vars; try destruct o; inversion H. + destruct vars1; try destruct o; inversion H1. + apply X with (vars:=vars1_1,,(vars1_2,,vars2)). + subst; reflexivity. + Defined. + + Definition swapr Γ Δ Σ₁ a b c lev : + ITree Judg judg2exprType [Γ > Δ > ((a,,b),,c) |- Σ₁ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > ((b,,a),,c) |- Σ₁ @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *; intros. + destruct vars; try destruct o; inversion H. + destruct vars1; try destruct o; inversion H1. + apply X with (vars:=(vars1_2,,vars1_1),,vars2). + subst; reflexivity. + Defined. + + Definition rdup Γ Δ Σ₁ a c lev : + ITree Judg judg2exprType [Γ > Δ > ((a,,a),,c) |- Σ₁ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > (a,,c) |- Σ₁ @ lev]. + intros. + apply ileaf in X. + apply ILeaf. + simpl in *; intros. + destruct vars; try destruct o; inversion H. + apply X with (vars:=(vars1,,vars1),,vars2). (* is this allowed? *) + subst; reflexivity. + Defined. + + (* holy cow this is ugly *) + Definition rcut Γ Δ Σ₃ lev Σ₁₂ : + forall Σ₁ Σ₂, + ITree Judg judg2exprType [Γ > Δ > Σ₁ |- Σ₁₂ @ lev] -> + ITree Judg judg2exprType [Γ > Δ > Σ₁₂ @@@ lev,,Σ₂ |- [Σ₃] @ lev] -> + ITree Judg judg2exprType [Γ > Δ > Σ₁,,Σ₂ |- [Σ₃] @ lev]. + + induction Σ₁₂. + intros. + destruct a. + + eapply rlet. + apply IBranch. + apply X. + apply X0. + + simpl in X0. + apply rdrop'' in X0. + apply rdrop'''. + apply X0. + + intros. + simpl in X0. + apply rassoc in X0. + set (IHΣ₁₂1 _ _ (rdrop _ _ _ _ _ _ X) X0) as q. + set (IHΣ₁₂2 _ (Σ₁,,Σ₂) (rdrop' _ _ _ _ _ _ X)) as q'. + apply rassoc' in q. + apply swapr in q. + apply rassoc in q. + set (q' q) as q''. + apply rassoc' in q''. + apply rdup in q''. + apply q''. + Defined. Definition rule2expr : forall h j (r:Rule h j), ITree _ judg2exprType h -> ITree _ judg2exprType j. @@ -528,6 +764,9 @@ Section HaskProofToStrong. | RAbsCo Γ Δ Σ κ σ σ₁ σ₂ y => let case_RAbsCo := tt in _ | RApp Γ Δ Σ₁ Σ₂ tx te p => let case_RApp := tt in _ | RLet Γ Δ Σ₁ Σ₂ σ₁ σ₂ p => let case_RLet := tt in _ + | RCut Γ Δ Σ₁ Σ₁₂ Σ₂ Σ₃ l => let case_RCut := tt in _ + | RLeft Γ Δ Σ₁ Σ₂ Σ l => let case_RLeft := tt in _ + | RRight Γ Δ Σ₁ Σ₂ Σ l => let case_RRight := tt in _ | RWhere Γ Δ Σ₁ Σ₂ Σ₃ σ₁ σ₂ p => let case_RWhere := tt in _ | RJoin Γ p lri m x q l => let case_RJoin := tt in _ | RVoid _ _ l => let case_RVoid := tt in _ @@ -645,40 +884,8 @@ Section HaskProofToStrong. apply (EApp _ _ _ _ _ _ q1' q2'). destruct case_RLet. - apply ILeaf. - simpl in *; intros. - destruct vars; try destruct o; inversion H. - - refine (fresh_lemma _ ξ _ _ σ₁ p H2 >>>= (fun pf => _)). - apply FreshMon. - - destruct pf as [ vnew [ pf1 pf2 ]]. - set (update_xi ξ p (((vnew, σ₁ )) :: nil)) as ξ' in *. - inversion X_. - apply ileaf in X. - apply ileaf in X0. - simpl in *. - - refine (X ξ vars1 _ >>>= fun X0' => _). - apply FreshMon. - simpl. - auto. - - refine (X0 ξ' ([vnew],,vars2) _ >>>= fun X1' => _). - apply FreshMon. - simpl. - rewrite pf2. - rewrite pf1. - reflexivity. - apply FreshMon. - - apply ILeaf. - apply ileaf in X1'. - apply ileaf in X0'. - simpl in *. - apply ELet with (ev:=vnew)(tv:=σ₁). - apply X0'. - apply X1'. + eapply rlet. + apply X_. destruct case_RWhere. apply ILeaf. @@ -720,6 +927,57 @@ Section HaskProofToStrong. apply X1'. apply X0'. + destruct case_RCut. + inversion X_. + subst. + clear X_. + induction Σ₃. + destruct a. + subst. + eapply rcut. + apply X. + apply X0. + + apply ILeaf. + simpl. + intros. + refine (return _). + apply INone. + set (IHΣ₃1 (rdrop _ _ _ _ _ _ X0)) as q1. + set (IHΣ₃2 (rdrop' _ _ _ _ _ _ X0)) as q2. + apply ileaf in q1. + apply ileaf in q2. + simpl in *. + apply ILeaf. + simpl. + intros. + refine (q1 _ _ H >>>= fun q1' => q2 _ _ H >>>= fun q2' => return _). + apply FreshMon. + apply FreshMon. + apply IBranch; auto. + + destruct case_RLeft. + apply ILeaf. + simpl; intros. + destruct vars; try destruct o; inversion H. + refine (X_ _ _ H2 >>>= fun X' => return _). + apply FreshMon. + apply IBranch. + eapply vartree. + apply H1. + apply X'. + + destruct case_RRight. + apply ILeaf. + simpl; intros. + destruct vars; try destruct o; inversion H. + refine (X_ _ _ H1 >>>= fun X' => return _). + apply FreshMon. + apply IBranch. + apply X'. + eapply vartree. + apply H2. + destruct case_RVoid. apply ILeaf; simpl; intros. refine (return _). @@ -825,38 +1083,6 @@ Section HaskProofToStrong. | scnd_branch _ _ _ c1 c2 => let case_branch := tt in fun q => IBranch _ _ (closed2expr _ _ c1 q) (closed2expr _ _ c2 q) end. - Lemma manyFresh : forall Γ Σ (ξ0:VV -> LeveledHaskType Γ ★), - FreshM { vars : _ & { ξ : VV -> LeveledHaskType Γ ★ & Σ = mapOptionTree ξ vars } }. - intros Γ Σ. - induction Σ; intro ξ. - destruct a. - destruct l as [τ l]. - set (fresh_lemma' Γ [τ] [] [] ξ l (refl_equal _)) as q. - refine (q >>>= fun q' => return _). - apply FreshMon. - clear q. - destruct q' as [varstypes [pf1 [pf2 distpf]]]. - exists (mapOptionTree (@fst _ _) varstypes). - exists (update_xi ξ l (leaves varstypes)). - symmetry; auto. - refine (return _). - exists []. - exists ξ; auto. - refine (bind f1 = IHΣ1 ξ ; _). - apply FreshMon. - destruct f1 as [vars1 [ξ1 pf1]]. - refine (bind f2 = IHΣ2 ξ1 ; _). - apply FreshMon. - destruct f2 as [vars2 [ξ2 pf22]]. - refine (return _). - exists (vars1,,vars2). - exists ξ2. - simpl. - rewrite pf22. - rewrite pf1. - admit. - Defined. - Definition proof2expr Γ Δ τ l Σ (ξ0: VV -> LeveledHaskType Γ ★) {zz:ToString VV} : ND Rule [] [Γ > Δ > Σ |- [τ] @ l] -> FreshM (???{ ξ : _ & Expr Γ Δ ξ τ l}).