diff options
| author |  Stephane Glondu <steph@glondu.net> | 2012-08-20 18:27:01 +0200 |
|---|---|---|
| committer | Stephane Glondu <steph@glondu.net> | 2012-08-20 18:27:01 +0200 |
| commit | e0d682ec25282a348d35c5b169abafec48555690 (patch) | |
| tree | 1a46f0142a85df553388c932110793881f3af52f /proofs/proof.ml | |
| parent | 86535d84cc3cffeee1dcd8545343f234e7285530 (diff) | |
Imported Upstream version 8.4dfsgupstream/8.4dfsg
Diffstat (limited to 'proofs/proof.ml')
| -rw-r--r-- | proofs/proof.ml | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/proofs/proof.ml b/proofs/proof.ml index 996a895f..a4e556c5 100644 --- a/proofs/proof.ml +++ b/proofs/proof.ml @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -149,12 +149,26 @@ type proof = { (* current proof_state *) (*** General proof functions ***) +let proof { state = p } = + let (goals,sigma) = Proofview.proofview p.proofview in + (* spiwack: beware, the bottom of the stack is used by [Proof] + internally, and should not be exposed. *) + let rec map_minus_one f = function + | [] -> assert false + | [_] -> [] + | a::l -> f a :: (map_minus_one f l) + in + let stack = + map_minus_one (fun (_,_,c) -> Proofview.focus_context c) p.focus_stack + in + (goals,stack,sigma) + let rec unroll_focus pv = function | (_,_,ctx)::stk -> unroll_focus (Proofview.unfocus ctx pv) stk | [] -> pv (* spiwack: a proof is considered completed even if its still focused, if the focus - doesn't hide any goal. + doesn't hide any goal. Unfocusing is handled in {!return}. *) let is_done p = Proofview.finished p.state.proofview && |