let proof,goal = status in
let curi, metasenv, _subst, pbo, pty, attrs = proof in
let (metano,context,gty) = CicUtil.lookup_meta goal metasenv in
- let gsort,_ =
- CicTypeChecker.type_of_aux' metasenv context gty CicUniv.oblivion_ugraph in
match hyps_pat with
he::(_::_ as tl) ->
PET.apply_tactic
match hyps_pat with
[] -> None,true,(fun ~term _ -> P.exact_tac term),concl_pat,gty
| [name,pat] ->
- let rec find_hyp n =
- function
- [] -> assert false
- | Some (Cic.Name s,Cic.Decl ty)::_ when name = s ->
- Cic.Rel n, S.lift n ty
- | Some (Cic.Name s,Cic.Def _)::_ when name = s -> assert false (*CSC: not implemented yet! But does this make any sense?*)
- | _::tl -> find_hyp (n+1) tl
- in
- let arg,gty = find_hyp 1 context in
+ let arg,gty = ProofEngineHelpers.find_hyp name context in
let dummy = "dummy" in
Some arg,false,
(fun ~term typ ->
Some pat,gty
| _::_ -> assert false
in
+ let gsort,_ =
+ CicTypeChecker.type_of_aux' metasenv context gty CicUniv.oblivion_ugraph in
let if_right_to_left do_not_change a b =
match direction with
| `RightToLeft -> if do_not_change then a else b
in
(proof',goals)
with (* FG: this should be PET.Fail _ *)
- TC.TypeCheckerFailure _ ->
- let msg = lazy "rewrite: nothing to rewrite" in
+ TC.TypeCheckerFailure m ->
+ let msg = lazy ("rewrite: "^ Lazy.force m) in
raise (PET.Fail msg)
in
PET.mk_tactic _rewrite_tac