1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
|
(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(* $Id$ *)
open Vernac
open Vernacexpr
open Pfedit
open Pp
open Util
open Names
open Term
open Printer
open Environ
open Evarutil
open Evd
open Hipattern
open Tacmach
open Reductionops
open Ideutils
let prerr_endline s = if !debug then prerr_endline s else ()
let output = ref (Format.formatter_of_out_channel stdout)
let msg m =
let b = Buffer.create 103 in
Pp.msg_with (Format.formatter_of_buffer b) m;
Buffer.contents b
let msgnl m =
(msg m)^"\n"
let init () =
(* To hide goal in lower window.
Problem: should not hide "xx is assumed"
messages *)
Options.make_silent true;
Coqtop.init_ide ()
let i = ref 0
let version () =
Printf.sprintf "The Coq Proof Assistant, version %s (%s)\nConfigured on %s\nThis is the %s version (%s is the best one) for architecture %s on system %s
Gtk version is %s"
Coq_config.version Coq_config.date Coq_config.compile_date
(if Mltop.get () = Mltop.Native then "native" else "byte")
(if Coq_config.best="opt" then "native" else "byte")
Coq_config.arch Sys.os_type
(let x,y,z = GMain.Main.version in Printf.sprintf "%d.%d.%d" x y z)
let is_in_coq_lib dir =
prerr_endline ("Is it a coq theory ? : "^dir);
try
let stat = Unix.stat dir in
List.exists
(fun s ->
try
let fdir = Filename.concat
Coq_config.coqlib
(Filename.concat "theories" s)
in
prerr_endline (" Comparing to: "^fdir);
let fstat = Unix.stat fdir in
(fstat.Unix.st_dev = stat.Unix.st_dev) &&
(fstat.Unix.st_ino = stat.Unix.st_ino) &&
(prerr_endline " YES";true)
with _ -> prerr_endline " No(because of a local exn)";false
)
Coq_config.theories_dirs
with _ -> prerr_endline " No(because of a global exn)";false
let is_in_coq_path f =
try
let base = Filename.chop_extension (Filename.basename f) in
let _ = Library.locate_qualified_library
(Libnames.make_qualid Names.empty_dirpath
(Names.id_of_string base)) in
prerr_endline (f ^ "is in coq path");
true
with _ ->
prerr_endline (f ^ "is NOT in coq path");
false
let is_in_proof_mode () =
try ignore (get_pftreestate ()); true with _ -> false
let interp s =
prerr_endline "Starting interp...";
prerr_endline s;
let pe = Pcoq.Gram.Entry.parse
Pcoq.main_entry
(Pcoq.Gram.parsable (Stream.of_string s))
in match pe with
| Some (loc,(VernacDefinition _ | VernacStartTheoremProof _ | VernacBeginSection _
| VernacDefineModule _ | VernacDeclareModuleType _))
when is_in_proof_mode ()
->
raise (Stdpp.Exc_located (loc,
Util.UserError
("CoqIde",
(str "cannot do that while in proof mode."))
))
| _ ->
Vernac.raw_do_vernac (Pcoq.Gram.parsable (Stream.of_string s));
match pe with
| Some last ->
prerr_endline ("...Done with interp of : "^s);
last
| None -> assert false
let nb_subgoals pf =
List.length (fst (Refiner.frontier (Tacmach.proof_of_pftreestate pf)))
type tried_tactic =
| Interrupted
| Success of int (* nb of goals after *)
| Failed
let try_interptac s =
try
prerr_endline ("Starting try_interptac: "^s);
let pf = get_pftreestate () in
let pe = Pcoq.Gram.Entry.parse
Pcoq.main_entry
(Pcoq.Gram.parsable (Stream.of_string s))
in match pe with
| Some (loc,(VernacSolve (n, tac, _))) ->
let tac = Tacinterp.interp tac in
let pf' = solve_nth_pftreestate n tac pf in
prerr_endline "Success";
let nb_goals = nb_subgoals pf' - nb_subgoals pf in
Success nb_goals
| _ ->
prerr_endline "try_interptac: not a tactic"; Failed
with
| Sys.Break | Stdpp.Exc_located (_,Sys.Break)
-> prerr_endline "try_interp: interrupted"; Interrupted
| Stdpp.Exc_located (_,e) -> prerr_endline ("try_interp: failed ("^(Printexc.to_string e)); Failed
| e -> Failed
let is_tactic = function
| VernacSolve _ -> true
| _ -> false
let rec is_pervasive_exn = function
| Out_of_memory | Stack_overflow | Sys.Break -> true
| Error_in_file (_,_,e) -> is_pervasive_exn e
| Stdpp.Exc_located (_,e) -> is_pervasive_exn e
| DuringCommandInterp (_,e) -> is_pervasive_exn e
| _ -> false
let print_toplevel_error exc =
let (dloc,exc) =
match exc with
| DuringCommandInterp (loc,ie) ->
if loc = dummy_loc then (None,ie) else (Some loc, ie)
| _ -> (None, exc)
in
let (loc,exc) =
match exc with
| Stdpp.Exc_located (loc, ie) -> (Some loc),ie
| Error_in_file (s, (fname, loc), ie) -> None, ie
| _ -> dloc,exc
in
match exc with
| End_of_input -> str "Please report: End of input",None
| Vernacexpr.ProtectedLoop ->
str "ProtectedLoop not allowed by coqide!",None
| Vernacexpr.Drop -> str "Drop is not allowed by coqide!",None
| Vernacexpr.Quit -> str "Quit is not allowed by coqide! Use menus.",None
| _ ->
(try Cerrors.explain_exn exc with e ->
str "Failed to explain error. This is an internal Coq error. Please report.\n"
++ str (Printexc.to_string e)),
(if is_pervasive_exn exc then None else loc)
let process_exn e = let s,loc= print_toplevel_error e in (msgnl s,loc)
let interp_last last =
prerr_string "*";
try
vernac_com (States.with_heavy_rollback Vernacentries.interp) last
with e ->
let s,_ = process_exn e in prerr_endline ("Replay during undo failed because: "^s);
raise e
type hyp = env * evar_map *
((identifier * string) * constr option * constr) *
(string * string)
type concl = env * evar_map * constr * string
type goal = hyp list * concl
let prepare_hyp sigma env ((i,c,d) as a) =
env, sigma,
((i,string_of_id i),c,d),
(msg (pr_var_decl env a), msg (prterm_env_at_top env d))
let prepare_hyps sigma env =
assert (rel_context env = []);
let hyps =
fold_named_context
(fun env d acc -> let hyp = prepare_hyp sigma env d in hyp :: acc)
env ~init:[]
in
List.rev hyps
let prepare_goal sigma g =
let env = evar_env g in
(prepare_hyps sigma env,
(env, sigma, g.evar_concl, msg (prterm_env_at_top env g.evar_concl)))
let get_current_goals () =
let pfts = get_pftreestate () in
let gls = fst (Refiner.frontier (Tacmach.proof_of_pftreestate pfts)) in
let sigma = Tacmach.evc_of_pftreestate pfts in
List.map (prepare_goal sigma) gls
let get_current_goals_nb () =
try List.length (get_current_goals ()) with _ -> 0
let print_no_goal () =
let pfts = get_pftreestate () in
let gls = fst (Refiner.frontier (Tacmach.proof_of_pftreestate pfts)) in
assert (gls = []);
let sigma = Tacmach.project (Tacmach.top_goal_of_pftreestate pfts) in
msg (Proof_trees.pr_subgoals_existential sigma gls)
type word_class = Normal | Kwd | Reserved
let kwd = [(* "Compile";"Inductive";"Qed";"Type";"end";"Axiom";
"Definition";"Load";"Quit";"Variable";"in";"Cases";"FixPoint";
"Parameter";"Set";"of";"CoFixpoint";"Grammar";"Proof";"Syntax";
"using";"CoInductive";"Hypothesis";"Prop";"Theorem";
*)
"Add"; "AddPath"; "Axiom"; "Chapter"; "CoFixpoint";
"CoInductive"; "Defined"; "Definition";
"End"; "Export"; "Fact"; "Fix"; "Fixpoint"; "Global"; "Grammar"; "Hint";
"Hints"; "Hypothesis"; "Immediate"; "Implicits"; "Import"; "Inductive";
"Infix"; "Lemma"; "Load"; "Local";
"Match"; "Module"; "Module Type";
"Mutual"; "Parameter"; "Print"; "Proof"; "Qed";
"Record"; "Recursive"; "Remark"; "Require"; "Save"; "Scheme";
"Section"; "Show"; "Syntactic"; "Syntax"; "Tactic"; "Theorem";
"Unset"; "Variable"; "Variables";
]
let reserved = []
module SHashtbl =
Hashtbl.Make
(struct
type t = string
let equal = ( = )
let hash = Hashtbl.hash
end)
let word_tbl = SHashtbl.create 37
let _ =
List.iter (fun w -> SHashtbl.add word_tbl w Kwd) kwd;
List.iter (fun w -> SHashtbl.add word_tbl w Reserved) reserved
let word_class s =
try
SHashtbl.find word_tbl s
with Not_found -> Normal
type reset_info = NoReset | Reset of Names.identifier * bool ref
let compute_reset_info = function
| VernacDefinition (_, id, DefineBody _, _, _)
| VernacBeginSection id
| VernacDefineModule (id, _, _, _)
| VernacDeclareModule (id, _, _, _)
| VernacDeclareModuleType (id, _, _)
| VernacAssumption (_, (_,(id,_))::_)
| VernacInductive (_, (id,_,_,_,_) :: _) ->
Reset (id, ref true)
| VernacDefinition (_, id, ProveBody _, _, _)
| VernacStartTheoremProof (_, id, _, _, _) ->
Reset (id, ref false)
| _ -> NoReset
let reset_initial () =
prerr_endline "Reset initial called"; flush stderr;
Vernacentries.abort_refine Lib.reset_initial ()
let reset_to id =
prerr_endline ("Reset called with "^(string_of_id id));
Vernacentries.abort_refine Lib.reset_name (Util.dummy_loc,id)
let reset_to_mod id =
prerr_endline ("Reset called to Mod/Sect with "^(string_of_id id));
Vernacentries.abort_refine Lib.reset_mod (Util.dummy_loc,id)
let hyp_menu (env, sigma, ((coqident,ident),_,ast),(s,pr_ast)) =
[("Clear "^ident),("Clear "^ident^".");
("Apply "^ident),
("Apply "^ident^".");
("Exact "^ident),
("Exact "^ident^".");
("Generalize "^ident),
("Generalize "^ident^".");
("Absurd <"^ident^">"),
("Absurd "^
pr_ast
^".") ] @
(if is_equation ast then
[ "Discriminate "^ident, "Discriminate "^ident^".";
"Injection "^ident, "Injection "^ident^"." ]
else
[]) @
(let _,t = splay_prod env sigma ast in
if is_equation t then
[ "Rewrite "^ident, "Rewrite "^ident^".";
"Rewrite <- "^ident, "Rewrite <- "^ident^"." ]
else
[]) @
[("Elim "^ident),
("Elim "^ident^".");
("Inversion "^ident),
("Inversion "^ident^".");
("Inversion_clear "^ident),
("Inversion_clear "^ident^".")]
let concl_menu (_,_,concl,_) =
let is_eq = is_equation concl in
["Intro", "Intro.";
"Intros", "Intros.";
"Intuition","Intuition." ] @
(if is_eq then
["Reflexivity", "Reflexivity.";
"Discriminate", "Discriminate.";
"Symmetry", "Symmetry." ]
else
[]) @
["Assumption" ,"Assumption.";
"Omega", "Omega.";
"Ring", "Ring.";
"Auto with *", "Auto with *.";
"EAuto with *", "EAuto with *.";
"Tauto", "Tauto.";
"Trivial", "Trivial.";
"Decide Equality", "Decide Equality.";
"Simpl", "Simpl.";
"Subst", "Subst.";
"Red", "Red.";
"Split", "Split.";
"Left", "Left.";
"Right", "Right.";
]
let id_of_name = function
| Names.Anonymous -> id_of_string "x"
| Names.Name x -> x
let make_cases s =
let qualified_name = Libnames.qualid_of_string s in
let glob_ref = Nametab.locate qualified_name in
match glob_ref with
| Libnames.IndRef i ->
let _,
{
Declarations.mind_nparams = np ;
Declarations.mind_consnames = carr ;
Declarations.mind_nf_lc = tarr }
= Global.lookup_inductive i
in
Util.array_fold_right2
(fun n t l ->
let (al,_) = Term.decompose_prod t in
let al,_ = Util.list_chop (List.length al - np) al in
let rec rename avoid = function
| [] -> []
| (n,_)::l ->
let n' = Tactics.next_global_ident_away
(id_of_name n)
avoid
in (string_of_id n')::(rename (n'::avoid) l)
in
let al' = rename [] (List.rev al) in
(string_of_id n :: al') :: l
)
carr
tarr
[]
| _ -> raise Not_found
let is_state_preserving = function
| VernacPrint _ | VernacPrintOption _ | VernacGlobalCheck _
| VernacCheckMayEval _ | VernacSearch _ | VernacLocate _
| VernacShow _ | VernacMemOption _ | VernacComments _
| VernacChdir None | VernacNop ->
prerr_endline "state preserving command found"; true
| _ ->
false
let current_status () =
let path = msg (Libnames.pr_dirpath (Lib.cwd ())) in
let path = if path = "Top" then "Ready" else "Ready in " ^ String.sub path 4 (String.length path - 4) in
try
path ^ ", proving " ^ (Names.string_of_id (Pfedit.get_current_proof_name ()))
with _ -> path
|