X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=components%2Ftactics%2Fdeclarative.ml;h=75f56f2b683bdc9f53fe6c5769ec0b7a8dec81cb;hb=7f149c6e78132be469723286161a78a782da70ec;hp=370e326dbcd2f76fcda3efe06593f46e2ef0944c;hpb=27ebdab06ba308c431669b58a46fc0bb12c8c72e;p=helm.git

diff --git a/components/tactics/declarative.ml b/components/tactics/declarative.ml
index 370e326db..75f56f2b6 100644
--- a/components/tactics/declarative.ml
+++ b/components/tactics/declarative.ml
@@ -45,57 +45,80 @@ let suppose t id ty =
       (fun _ metasenv ugraph -> ty,metasenv,ugraph))
 ;;
 
-let by_term_we_proved t ty id ty' =
- match t with
-    None -> assert false
-  | Some t ->
-     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 ; Tactics.apply t ]
+let by_term_we_proved ~dbd t ty id ty' =
+ let just =
+  match t with
+     None -> Tactics.auto ~dbd ~params:[]
+   | Some t -> Tactics.apply t
+ in
+  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 t =
-   match t with
-    None -> assert false
-  | Some t ->
-    (Tactics.apply ~term:t)
+let bydone ~dbd t =
+ let just =
+  match t with
+     None -> Tactics.auto ~dbd ~params:[]
+   | 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 =
@@ -111,13 +134,13 @@ let existselim t id1 t1 id2 t2 =
 
 let andelim = existselim;;
 
-let rewritingstep lhs rhs just conclude =
+let rewritingstep ~dbd 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
   let eq,trans =
    match LibraryObjects.eq_URI () with
-      None -> assert false (*TODO*)
+      None -> raise (ProofEngineTypes.Fail (lazy "You need to register the default equality first. Please use the \"default\" command"))
     | Some uri ->
       Cic.MutInd (uri,0,[]), Cic.Const (LibraryObjects.trans_eq_URI ~eq:uri,[])
   in
@@ -125,8 +148,10 @@ let rewritingstep lhs rhs just conclude =
    CicTypeChecker.type_of_aux' metasenv context rhs CicUniv.empty_ugraph in
   let just =
    match just with
-      None -> assert false (*TOOD*)
-    | Some just -> just
+      None ->
+       Tactics.auto ~dbd
+        ~params:["paramodulation","1"; "timeout","3"]
+    | Some just -> Tactics.apply just
   in
    match lhs with
       None ->
@@ -151,7 +176,7 @@ let rewritingstep lhs rhs just conclude =
                 ~continuations:
                   [ Tactics.apply prhs ;
                     Tactics.apply (Cic.Rel 1) ;
-                    Tactics.apply just]) status
+                    just]) status
           | Some name ->
              let mk_fresh_name_callback =
 	      fun metasenv context _ ~typ ->
@@ -169,11 +194,11 @@ let rewritingstep lhs rhs just conclude =
                       ~continuations:
                         [ Tactics.apply prhs ;
                           Tactics.apply (Cic.Rel 1) ;
-                          Tactics.apply just]
+                          just]
                    ]) status)
     | Some lhs ->
        match conclude with
-          None -> ProofEngineTypes.apply_tactic (Tactics.apply just) status
+          None -> ProofEngineTypes.apply_tactic just status
         | Some name ->
             let mk_fresh_name_callback =
 	     fun metasenv context _ ~typ ->
@@ -185,7 +210,7 @@ let rewritingstep lhs rhs just conclude =
                 ~start:
                   (Tactics.cut ~mk_fresh_name_callback
                     (Cic.Appl [eq ; ty ; lhs ; rhs]))
-                ~continuations:[ Tacticals.id_tac ; Tactics.apply just ]) status
+                ~continuations:[ Tacticals.id_tac ; just ]) status
  in
   ProofEngineTypes.mk_tactic aux
 ;;