Added a clear to rewritestep to speed up auto (by removing an hypothesis

[helm.git] / components / tactics / declarative.ml

diff --git a/components/tactics/declarative.ml b/components/tactics/declarative.ml
index 4a7d3e52c6329263d838cf063b6aa9020743d051..b1b38a9492e76cb5526c24c870382696a5f50314 100644 (file)
--- a/components/tactics/declarative.ml
+++ b/components/tactics/declarative.ml
@@ -45,60 +45,80 @@ let suppose t id ty =
       (fun _ metasenv ugraph -> ty,metasenv,ugraph))
 ;;
 
-let by_term_we_proved ~dbd t ty id ty' =
+let by_term_we_proved ~dbd ~universe t ty id ty' =
  let just =
   match t with
-     None -> Tactics.auto ~dbd ~params:[]
+     None -> Tactics.auto ~dbd ~params:[] ~universe
    | Some t -> Tactics.apply t
  in
-  let continuation =
-   match ty' with
-      None -> Tacticals.id_tac
-    | Some ty' ->
-       Tactics.change ~pattern:(None,[id,Cic.Implicit (Some `Hole)],None)
-        (fun _ metasenv ugraph -> ty,metasenv,ugraph)
-  in
-   Tacticals.thens
-   ~start:
-     (Tactics.cut ty
-       ~mk_fresh_name_callback:(fun _ _ _  ~typ -> Cic.Name id))
-   ~continuations:[ continuation ; just ]
+  match id with
+     None ->
+      (match ty' with
+          None -> assert false
+        | Some ty' ->
+           Tacticals.then_
+            ~start:(Tactics.change
+              ~pattern:(ProofEngineTypes.conclusion_pattern None)
+              (fun _ metasenv ugraph -> ty,metasenv,ugraph))
+            ~continuation:just
+      )
+   | Some id ->
+       let continuation =
+        match ty' with
+           None -> Tacticals.id_tac
+         | Some ty' ->
+             Tactics.change ~pattern:(None,[id,Cic.Implicit (Some `Hole)],None)
+              (fun _ metasenv ugraph -> ty',metasenv,ugraph)
+       in
+        Tacticals.thens
+        ~start:
+          (Tactics.cut ty
+            ~mk_fresh_name_callback:(fun _ _ _  ~typ -> Cic.Name id))
+        ~continuations:[ continuation ; just ]
 ;;
 
-let bydone ~dbd t =
+let bydone ~dbd ~universe t =
  let just =
   match t with
-     None -> Tactics.auto ~dbd ~params:[]
+     None -> Tactics.auto ~dbd ~params:[] ~universe
    | Some t -> Tactics.apply t
  in
   just
 ;;
 
 let we_need_to_prove t id ty =
- let aux status =
-  let cont,cutted =
-   match ty with
-      None -> Tacticals.id_tac,t
-    | Some ty ->
-       Tactics.change ~pattern:(None,[id,Cic.Implicit (Some `Hole)],None)
-        (fun _ metasenv ugraph -> t,metasenv,ugraph), ty in
-  let proof,goals =
-   ProofEngineTypes.apply_tactic
-    (Tacticals.thens
-      ~start:
-       (Tactics.cut cutted
-         ~mk_fresh_name_callback:(fun _ _ _  ~typ -> Cic.Name id))
-      ~continuations:[cont])
-    status
-  in
-   let goals' =
-    match goals with
-       [fst; snd] -> [snd; fst]
-     | _ -> assert false
-   in
-    proof,goals'
- in
-  ProofEngineTypes.mk_tactic aux
+ match id with
+    None ->
+     (match ty with
+         None -> Tacticals.id_tac (*BUG: check missing here *)
+       | Some ty ->
+          Tactics.change ~pattern:(ProofEngineTypes.conclusion_pattern None)
+           (fun _ metasenv ugraph -> ty,metasenv,ugraph))
+  | Some id ->
+     let aux status =
+      let cont,cutted =
+       match ty with
+          None -> Tacticals.id_tac,t
+        | Some ty ->
+           Tactics.change ~pattern:(None,[id,Cic.Implicit (Some `Hole)],None)
+             (fun _ metasenv ugraph -> t,metasenv,ugraph), ty in
+      let proof,goals =
+       ProofEngineTypes.apply_tactic
+        (Tacticals.thens
+          ~start:
+           (Tactics.cut cutted
+             ~mk_fresh_name_callback:(fun _ _ _  ~typ -> Cic.Name id))
+          ~continuations:[cont])
+        status
+      in
+       let goals' =
+        match goals with
+           [fst; snd] -> [snd; fst]
+         | _ -> assert false
+       in
+        proof,goals'
+     in
+      ProofEngineTypes.mk_tactic aux
 ;;
 
 let existselim t id1 t1 id2 t2 =
@@ -114,7 +134,7 @@ let existselim t id1 t1 id2 t2 =
 
 let andelim = existselim;;
 
-let rewritingstep ~dbd lhs rhs just conclude =
+let rewritingstep ~dbd ~universe lhs rhs just conclude =
  let aux ((proof,goal) as status) =
   let (curi,metasenv,proofbo,proofty) = proof in
   let _,context,_ = CicUtil.lookup_meta goal metasenv in
@@ -129,9 +149,8 @@ let rewritingstep ~dbd lhs rhs just conclude =
   let just =
    match just with
       None ->
-       Tactics.auto ~dbd
-        ~params:["paramodulation","on"; "timeout","3"]
-    | Some just -> Tactics.apply just
+       Tactics.auto ~dbd ~params:["paramodulation","1"; "timeout","3"] ~universe
+    | Some just -> Tactics.apply just 
   in
    match lhs with
       None ->
@@ -156,7 +175,9 @@ let rewritingstep ~dbd lhs rhs just conclude =
                 ~continuations:
                   [ Tactics.apply prhs ;
                     Tactics.apply (Cic.Rel 1) ;
-                    just]) status
+                    Tacticals.then_
+                     ~start:(Tactics.clear ~hyps:[last_hyp_name])
+                     ~continuation:just]) status
           | Some name ->
              let mk_fresh_name_callback =
              fun metasenv context _ ~typ ->
@@ -174,7 +195,9 @@ let rewritingstep ~dbd lhs rhs just conclude =
                       ~continuations:
                         [ Tactics.apply prhs ;
                           Tactics.apply (Cic.Rel 1) ;
-                          just]
+                          Tacticals.then_
+                           ~start:(Tactics.clear ~hyps:[last_hyp_name])
+                           ~continuation:just]
                    ]) status)
     | Some lhs ->
        match conclude with
@@ -218,10 +241,12 @@ let case id ~params =
 
 let thesisbecomes t =
 let ty = None in
- (*BUG here: missing check on t *)
  match ty with
-    None -> Tacticals.id_tac
+    None ->
+     Tactics.change ~pattern:(None,[],Some (Cic.Implicit (Some `Hole)))
+      (fun _ metasenv ugraph -> t,metasenv,ugraph)
   | Some ty ->
+     (*BUG here: missing check on t *)
      Tactics.change ~pattern:(None,[],Some (Cic.Implicit (Some `Hole)))
       (fun _ metasenv ugraph -> ty,metasenv,ugraph)
 ;;