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| author |  Matthieu Sozeau <mattam@mattam.org> | 2016-05-20 03:18:41 +0200 |
|---|---|---|
| committer | Matthieu Sozeau <mattam@mattam.org> | 2016-06-16 18:21:08 +0200 |
| commit | 677d5deb72734a0e5502bcf47a905fcdf9374e51 (patch) | |
| tree | c8812b98a4c5c2f34412b5d39a054be474679457 /engine/proofview.ml | |
| parent | 8d06718fd4d99f4e5bc33452a02ea27d5a9279ed (diff) | |
Proofview: extensions for backtracking eauto
unshelve_goals is used to correctly register dependent
subgoals that have to be solved. Resolution may fail to
do so using hints, so we have to put them back as goals
in that case. The shelf is a good interface for doing that.
unifiable can be used outside proofview to detect dependencies
between goals. This might be better in another module.
Diffstat (limited to 'engine/proofview.ml')
| -rw-r--r-- | engine/proofview.ml | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/engine/proofview.ml b/engine/proofview.ml index b8f49a9c8..d87686065 100644 --- a/engine/proofview.ml +++ b/engine/proofview.ml @@ -618,6 +618,13 @@ let shelve = InfoL.leaf (Info.Tactic (fun () -> Pp.str"shelve")) >> Shelf.modify (fun gls -> gls @ initial) +let shelve_goals l = + let open Proof in + Comb.get >>= fun initial -> + let comb = CList.filter (fun g -> not (CList.mem g l)) initial in + Comb.set comb >> + InfoL.leaf (Info.Tactic (fun () -> Pp.str"shelve_goals")) >> + Shelf.modify (fun gls -> gls @ l) (** [contained_in_info e evi] checks whether the evar [e] appears in the hypotheses, the conclusion or the body of the evar_info |