BIG FAT COMMIT REGARDING COERCIONS:

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

diff --git a/components/tactics/declarative.ml b/components/tactics/declarative.ml
index 370e326dbcd2f76fcda3efe06593f46e2ef0944c..4a7d3e52c6329263d838cf063b6aa9020743d051 100644 (file)
--- a/components/tactics/declarative.ml
+++ b/components/tactics/declarative.ml
@@ -45,30 +45,33 @@ 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
+  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 =
@@ -111,13 +114,13 @@ 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 +128,10 @@ 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","on"; "timeout","3"]
+    | Some just -> Tactics.apply just
   in
    match lhs with
       None ->
@@ -151,7 +156,7 @@ 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 +174,11 @@ 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 +190,7 @@ 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
 ;;