diff options
author | Enrico Tassi <gareuselesinge@debian.org> | 2016-12-27 16:53:30 +0100 |
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committer | Enrico Tassi <gareuselesinge@debian.org> | 2016-12-27 16:53:30 +0100 |
commit | a4c7f8bd98be2a200489325ff7c5061cf80ab4f3 (patch) | |
tree | 26dd9c4aa142597ee09c887ef161d5f0fa5077b6 /ltac/g_class.ml4 | |
parent | 164c6861860e6b52818c031f901ffeff91fca16a (diff) |
Imported Upstream version 8.6upstream/8.6
Diffstat (limited to 'ltac/g_class.ml4')
-rw-r--r-- | ltac/g_class.ml4 | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/ltac/g_class.ml4 b/ltac/g_class.ml4 new file mode 100644 index 00000000..7e26b5d1 --- /dev/null +++ b/ltac/g_class.ml4 @@ -0,0 +1,120 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + +(*i camlp4deps: "grammar/grammar.cma" i*) + +open Misctypes +open Class_tactics +open Pcoq.Tactic +open Stdarg +open Constrarg + +DECLARE PLUGIN "g_class" + +(** Options: depth, debug and transparency settings. *) + +let set_transparency cl b = + List.iter (fun r -> + let gr = Smartlocate.global_with_alias r in + let ev = Tacred.evaluable_of_global_reference (Global.env ()) gr in + Classes.set_typeclass_transparency ev false b) cl + +VERNAC COMMAND EXTEND Typeclasses_Unfold_Settings CLASSIFIED AS SIDEFF +| [ "Typeclasses" "Transparent" reference_list(cl) ] -> [ + set_transparency cl true ] +END + +VERNAC COMMAND EXTEND Typeclasses_Rigid_Settings CLASSIFIED AS SIDEFF +| [ "Typeclasses" "Opaque" reference_list(cl) ] -> [ + set_transparency cl false ] +END + +open Genarg + +let pr_debug _prc _prlc _prt b = + if b then Pp.str "debug" else Pp.mt() + +ARGUMENT EXTEND debug TYPED AS bool PRINTED BY pr_debug +| [ "debug" ] -> [ true ] +| [ ] -> [ false ] +END + +let pr_search_strategy _prc _prlc _prt = function + | Some Dfs -> Pp.str "dfs" + | Some Bfs -> Pp.str "bfs" + | None -> Pp.mt () + +ARGUMENT EXTEND eauto_search_strategy PRINTED BY pr_search_strategy +| [ "(bfs)" ] -> [ Some Bfs ] +| [ "(dfs)" ] -> [ Some Dfs ] +| [ ] -> [ None ] +END + +(* true = All transparent, false = Opaque if possible *) + +VERNAC COMMAND EXTEND Typeclasses_Settings CLASSIFIED AS SIDEFF + | [ "Typeclasses" "eauto" ":=" debug(d) eauto_search_strategy(s) int_opt(depth) ] -> [ + set_typeclasses_debug d; + Option.iter set_typeclasses_strategy s; + set_typeclasses_depth depth + ] +END + +(** Compatibility: typeclasses eauto has 8.5 and 8.6 modes *) +TACTIC EXTEND typeclasses_eauto + | [ "typeclasses" "eauto" "bfs" int_or_var_opt(d) "with" ne_preident_list(l) ] -> + [ typeclasses_eauto ~strategy:Bfs ~depth:d l ] + | [ "typeclasses" "eauto" int_or_var_opt(d) "with" ne_preident_list(l) ] -> + [ typeclasses_eauto ~depth:d l ] + | [ "typeclasses" "eauto" int_or_var_opt(d) ] -> [ + typeclasses_eauto ~only_classes:true ~depth:d [Hints.typeclasses_db] ] +END + +TACTIC EXTEND head_of_constr + [ "head_of_constr" ident(h) constr(c) ] -> [ head_of_constr h c ] +END + +TACTIC EXTEND not_evar + [ "not_evar" constr(ty) ] -> [ not_evar ty ] +END + +TACTIC EXTEND is_ground + [ "is_ground" constr(ty) ] -> [ Proofview.V82.tactic (is_ground ty) ] +END + +TACTIC EXTEND autoapply + [ "autoapply" constr(c) "using" preident(i) ] -> [ Proofview.V82.tactic (autoapply c i) ] +END + +(** TODO: DEPRECATE *) +(* A progress test that allows to see if the evars have changed *) +open Term +open Proofview.Goal +open Proofview.Notations + +let rec eq_constr_mod_evars x y = + match kind_of_term x, kind_of_term y with + | Evar (e1, l1), Evar (e2, l2) when not (Evar.equal e1 e2) -> true + | _, _ -> compare_constr eq_constr_mod_evars x y + +let progress_evars t = + Proofview.Goal.nf_enter { enter = begin fun gl -> + let concl = Proofview.Goal.concl gl in + let check = + Proofview.Goal.nf_enter { enter = begin fun gl' -> + let newconcl = Proofview.Goal.concl gl' in + if eq_constr_mod_evars concl newconcl + then Tacticals.New.tclFAIL 0 (Pp.str"No progress made (modulo evars)") + else Proofview.tclUNIT () + end } + in t <*> check + end } + +TACTIC EXTEND progress_evars + [ "progress_evars" tactic(t) ] -> [ progress_evars (Tacinterp.tactic_of_value ist t) ] +END |