-(* {{{ **************** applyS *******************)
-
-let new_metasenv_and_unify_and_t dbd proof goal newmeta' metasenv' context term' ty termty goal_arity =
- let (consthead,newmetasenv,arguments,_) =
- ProofEngineHelpers.saturate_term newmeta' metasenv' context termty goal_arity in
- let term'' = match arguments with [] -> term' | _ -> Cic.Appl (term'::arguments) in
- let proof',metasenv =
- let (puri,metasenv,pbo,pty) = proof in
- (puri,newmetasenv,pbo,pty),metasenv
- in
- let proof'',goals =
- match LibraryObjects.eq_URI () with
- | Some uri ->
- ProofEngineTypes.apply_tactic
- (Tacticals.then_
- ~start:(PrimitiveTactics.letin_tac term''(*Tacticals.id_tac*))
- ~continuation:
- (PrimitiveTactics.cut_tac
- (CicSubstitution.lift 1
- (Cic.Appl
- [Cic.MutInd (uri,0,[]);
- Cic.Sort Cic.Prop;
- consthead;
- ty])))) (proof',goal)
- | None -> raise (ProofEngineTypes.Fail (lazy "No equality defined"))
- in
- match goals with
- [g1;g2] ->
- let proof'',goals =
- ProofEngineTypes.apply_tactic
- (auto_tac ~params:["caso_strano","on";"paramodulation","on"] ~dbd) (proof'',g2)
- in
- let proof'',goals =
- ProofEngineTypes.apply_tactic
- (Tacticals.then_
- ~start:(EqualityTactics.rewrite_tac ~direction:`RightToLeft
- ~pattern:(ProofEngineTypes.conclusion_pattern None) (Cic.Rel 1))
- ~continuation:(PrimitiveTactics.apply_tac (Cic.Rel 2))
- ) (proof'',g1)
- in
- proof'',
- (*CSC: Brrrr.... *)
- ProofEngineHelpers.compare_metasenvs ~oldmetasenv:metasenv
- ~newmetasenv:(let _,m,_,_ = proof'' in m)
- | _ -> assert false
-
-let rec count_prods context ty =
- match CicReduction.whd context ty with
- Cic.Prod (n,s,t) -> 1 + count_prods (Some (n,Cic.Decl s)::context) t
- | _ -> 0
-
-let applyS_tac ~dbd ~term (proof, goal) =
- let module T = CicTypeChecker in
- let module R = CicReduction in
- let module C = Cic in
- let (_,metasenv,_,_) = proof in
- let metano,context,ty = CicUtil.lookup_meta goal metasenv in
- let newmeta = ProofEngineHelpers.new_meta_of_proof ~proof in
- let exp_named_subst_diff,newmeta',newmetasenvfragment,term' =
- match term with
- C.Var (uri,exp_named_subst) ->
- let newmeta',newmetasenvfragment,exp_named_subst',exp_named_subst_diff =
- PrimitiveTactics.generalize_exp_named_subst_with_fresh_metas context newmeta uri
- exp_named_subst
- in
- exp_named_subst_diff,newmeta',newmetasenvfragment,
- C.Var (uri,exp_named_subst')
- | C.Const (uri,exp_named_subst) ->
- let newmeta',newmetasenvfragment,exp_named_subst',exp_named_subst_diff =
- PrimitiveTactics.generalize_exp_named_subst_with_fresh_metas context newmeta uri
- exp_named_subst
- in
- exp_named_subst_diff,newmeta',newmetasenvfragment,
- C.Const (uri,exp_named_subst')
- | C.MutInd (uri,tyno,exp_named_subst) ->
- let newmeta',newmetasenvfragment,exp_named_subst',exp_named_subst_diff =
- PrimitiveTactics.generalize_exp_named_subst_with_fresh_metas context newmeta uri
- exp_named_subst
- in
- exp_named_subst_diff,newmeta',newmetasenvfragment,
- C.MutInd (uri,tyno,exp_named_subst')
- | C.MutConstruct (uri,tyno,consno,exp_named_subst) ->
- let newmeta',newmetasenvfragment,exp_named_subst',exp_named_subst_diff =
- PrimitiveTactics.generalize_exp_named_subst_with_fresh_metas context newmeta uri
- exp_named_subst
- in
- exp_named_subst_diff,newmeta',newmetasenvfragment,
- C.MutConstruct (uri,tyno,consno,exp_named_subst')
- | _ -> [],newmeta,[],term
- in
- let metasenv' = metasenv@newmetasenvfragment in
- let termty,_ =
- CicTypeChecker.type_of_aux' metasenv' context term' CicUniv.empty_ugraph
- in
- let termty =
- CicSubstitution.subst_vars exp_named_subst_diff termty in
- let goal_arity = count_prods context ty in
- let res =
- new_metasenv_and_unify_and_t dbd proof goal
- newmeta' metasenv' context term' ty termty goal_arity
- in
- res
-
-let applyS_tac ~dbd ~term =
- ProofEngineTypes.mk_tactic
- (fun status ->
- try applyS_tac ~dbd ~term status
- with
- | CicUnification.UnificationFailure msg
- | CicTypeChecker.TypeCheckerFailure msg ->
- raise (ProofEngineTypes.Fail msg))
-
-(* }}} ********************************)
-