diff options
Diffstat (limited to 'contrib/first-order/ground.ml')
| -rw-r--r-- | contrib/first-order/ground.ml | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/contrib/first-order/ground.ml b/contrib/first-order/ground.ml deleted file mode 100644 index bccac6df..00000000 --- a/contrib/first-order/ground.ml +++ /dev/null @@ -1,152 +0,0 @@ -(************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *) -(* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) -(************************************************************************) - -(* $Id: ground.ml 9537 2007-01-26 10:05:04Z corbinea $ *) - -open Formula -open Sequent -open Rules -open Instances -open Term -open Tacmach -open Tactics -open Tacticals -open Libnames - -(* -let old_search=ref !Auto.searchtable - -(* I use this solution as a means to know whether hints have changed, -but this prevents the GC from collecting the previous table, -resulting in some limited space wasting*) - -let update_flags ()= - if not ( !Auto.searchtable == !old_search ) then - begin - old_search:=!Auto.searchtable; - let predref=ref Names.KNpred.empty in - let f p_a_t = - match p_a_t.Auto.code with - Auto.Unfold_nth (ConstRef kn)-> - predref:=Names.KNpred.add kn !predref - | _ ->() in - let g _ l=List.iter f l in - let h _ hdb=Auto.Hint_db.iter g hdb in - Util.Stringmap.iter h !Auto.searchtable; - red_flags:= - Closure.RedFlags.red_add_transparent - Closure.betaiotazeta (Names.Idpred.full,!predref) - end -*) - -let update_flags ()= - let predref=ref Names.Cpred.empty in - let f coe= - try - let kn=destConst (Classops.get_coercion_value coe) in - predref:=Names.Cpred.add kn !predref - with Invalid_argument "destConst"-> () in - List.iter f (Classops.coercions ()); - red_flags:= - Closure.RedFlags.red_add_transparent - Closure.betaiotazeta - (Names.Idpred.full,Names.Cpred.complement !predref) - -let ground_tac solver startseq gl= - update_flags (); - let rec toptac skipped seq gl= - if Tacinterp.get_debug()=Tactic_debug.DebugOn 0 - then Pp.msgnl (Printer.pr_goal (sig_it gl)); - tclORELSE (axiom_tac seq.gl seq) - begin - try - let (hd,seq1)=take_formula seq - and re_add s=re_add_formula_list skipped s in - let continue=toptac [] - and backtrack gl=toptac (hd::skipped) seq1 gl in - match hd.pat with - Right rpat-> - begin - match rpat with - Rand-> - and_tac backtrack continue (re_add seq1) - | Rforall-> - let backtrack1= - if !qflag then - tclFAIL 0 (Pp.str "reversible in 1st order mode") - else - backtrack in - forall_tac backtrack1 continue (re_add seq1) - | Rarrow-> - arrow_tac backtrack continue (re_add seq1) - | Ror-> - or_tac backtrack continue (re_add seq1) - | Rfalse->backtrack - | Rexists(i,dom,triv)-> - let (lfp,seq2)=collect_quantified seq in - let backtrack2=toptac (lfp@skipped) seq2 in - if !qflag && seq.depth>0 then - quantified_tac lfp backtrack2 - continue (re_add seq) - else - backtrack2 (* need special backtracking *) - end - | Left lpat-> - begin - match lpat with - Lfalse-> - left_false_tac hd.id - | Land ind-> - left_and_tac ind backtrack - hd.id continue (re_add seq1) - | Lor ind-> - left_or_tac ind backtrack - hd.id continue (re_add seq1) - | Lforall (_,_,_)-> - let (lfp,seq2)=collect_quantified seq in - let backtrack2=toptac (lfp@skipped) seq2 in - if !qflag && seq.depth>0 then - quantified_tac lfp backtrack2 - continue (re_add seq) - else - backtrack2 (* need special backtracking *) - | Lexists ind -> - if !qflag then - left_exists_tac ind backtrack hd.id - continue (re_add seq1) - else backtrack - | LA (typ,lap)-> - let la_tac= - begin - match lap with - LLatom -> backtrack - | LLand (ind,largs) | LLor(ind,largs) - | LLfalse (ind,largs)-> - (ll_ind_tac ind largs backtrack - hd.id continue (re_add seq1)) - | LLforall p -> - if seq.depth>0 && !qflag then - (ll_forall_tac p backtrack - hd.id continue (re_add seq1)) - else backtrack - | LLexists (ind,l) -> - if !qflag then - ll_ind_tac ind l backtrack - hd.id continue (re_add seq1) - else - backtrack - | LLarrow (a,b,c) -> - (ll_arrow_tac a b c backtrack - hd.id continue (re_add seq1)) - end in - ll_atom_tac typ la_tac hd.id continue (re_add seq1) - end - with Heap.EmptyHeap->solver - end gl in - wrap (List.length (pf_hyps gl)) true (toptac []) (startseq gl) gl - |