1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
30 let compact_disambiguation_errors all_passes errorll =
36 (fun (env,diff,offset,msg,significant) ->
37 offset, [[pass], [[pass], env, diff], msg, significant]) l
39 (* Here we are doing a stable sort and list_uniq returns the latter
40 "equal" element. I.e. we are showing the error corresponding to the
41 most advanced disambiguation pass *)
43 let choices_compare (o1,_) (o2,_) = compare o1 o2 in
44 let choices_compare_by_passes (p1,_,_,_) (p2,_,_,_) =
50 | (o1,res1)::(o2,res2)::tl when o1 = o2 ->
51 let merge_by_name errors =
52 let merge_by_env errors =
53 let choices_compare_by_env (_,e1,_) (_,e2,_) = compare e1 e2 in
54 let choices_compare_by_passes (p1,_,_) (p2,_,_) =
60 | (p1,e1,_)::(p2,e2,d2)::tl when e1 = e2 ->
61 uniq_by_env ((p1@p2,e2,d2) :: tl)
62 | h1::tl -> h1 :: uniq_by_env tl
64 List.sort choices_compare_by_passes
65 (uniq_by_env (List.stable_sort choices_compare_by_env errors))
67 let choices_compare_by_msg (_,_,m1,_) (_,_,m2,_) =
68 compare (Lazy.force m1) (Lazy.force m2) in
73 | (p1,i1,m1,s1)::(p2,i2,m2,s2)::tl
74 when Lazy.force m1 = Lazy.force m2 && s1 = s2 ->
75 uniq_by_msg ((p1@p2,merge_by_env (i1@i2),m2,s2) :: tl)
76 | h1::tl -> h1 :: uniq_by_msg tl
78 List.sort choices_compare_by_msg
79 (uniq_by_msg (List.stable_sort choices_compare_by_msg errors))
81 let res = merge_by_name (res1@res2) in
83 | h1::tl -> h1 :: uniq tl
85 (* Errors in phase 3 that are not also in phase 4 are filtered out *)
86 let filter_phase_3 choices =
87 if all_passes then choices
93 let filtered_messages =
100 if filtered_messages = [] then
103 Some (loffset,filtered_messages))
108 (List.map (fun o,l -> o,List.sort choices_compare_by_passes l)
109 (uniq (List.stable_sort choices_compare choices)))
116 | HExtlib.Localized (floc,exn) ->
117 let _,msg = to_string exn in
118 let (x, y) = HExtlib.loc_of_floc floc in
119 Some floc, sprintf "Error at %d-%d: %s" x y msg
120 | GrafiteTypes.Option_error ("baseuri", "not found" ) ->
122 "Baseuri not set for this script. "
123 ^ "Use 'set \"baseuri\" \"<uri>\".' to set it."
124 | GrafiteTypes.Command_error msg -> None, "Error: " ^ msg
125 | CicNotationParser.Parse_error err ->
126 None, sprintf "Parse error: %s" err
127 | UriManager.IllFormedUri uri -> None, sprintf "invalid uri: %s" uri
128 | CicEnvironment.Object_not_found uri ->
129 None, sprintf "object not found: %s" (UriManager.string_of_uri uri)
130 | Unix.Unix_error (code, api, param) ->
131 let err = Unix.error_message code in
132 None, "Unix Error (" ^ api ^ "): " ^ err
133 | HMarshal.Corrupt_file fname -> None, sprintf "file '%s' is corrupt" fname
134 | HMarshal.Format_mismatch fname
135 | HMarshal.Version_mismatch fname ->
137 sprintf "format/version mismatch for file '%s', please recompile it'"
139 | ProofEngineTypes.Fail msg -> None, "Tactic error: " ^ Lazy.force msg
140 | Continuationals.Error s -> None, "Tactical error: " ^ Lazy.force s
141 | ProofEngineHelpers.Bad_pattern msg ->
142 None, "Bad pattern: " ^ Lazy.force msg
143 | CicRefine.RefineFailure msg
144 | CicRefine.AssertFailure msg ->
145 None, "Refiner error: " ^ Lazy.force msg
146 | CicTypeChecker.TypeCheckerFailure msg ->
147 None, "Type checking error: " ^ Lazy.force msg
148 | CicTypeChecker.AssertFailure msg ->
149 None, "Type checking assertion failed: " ^ Lazy.force msg
150 | LibrarySync.AlreadyDefined s ->
151 None, "Already defined: " ^ UriManager.string_of_uri s
152 | CoercDb.EqCarrNotImplemented msg ->
153 None, ("EqCarrNotImplemented: " ^ Lazy.force msg)
154 | GrafiteDisambiguator.DisambiguationError (offset,errorll) ->
157 ((_,_,Some floc,_,_)::_)::_ ->
158 let (x, y) = HExtlib.loc_of_floc floc in
159 let x = x + offset in
160 let y = y + offset in
161 let floc = HExtlib.floc_of_loc (x,y) in
164 let annotated_errorll =
167 (List.fold_left (fun (pass,res) item -> pass+1,(pass+1,item)::res)
169 let choices = compact_disambiguation_errors true annotated_errorll in
172 (function (loffset,l) ->
175 passes,envs_and_diffs,msg,significant ->
176 let _,env,diff = List.hd envs_and_diffs in
177 passes,env,diff,loffset,msg,significant
185 (List.map (fun (passes,_,_,floc,msg,significant) ->
190 let (x, y) = HExtlib.loc_of_floc floc in
191 sprintf " at %d-%d" (x+offset) (y+offset)
193 "*" ^ (if not significant then "(Spurious?) " else "")
194 ^ "Error" ^ loc_descr ^ ": " ^ Lazy.force msg,
201 | (msg,phases)::tl ->
203 "***** Errors obtained during phase" ^
204 (if phases = [] then " " else "s ") ^
205 String.concat "," (List.map string_of_int phases) ^": *****\n"^
209 "********** DISAMBIGUATION ERRORS: **********\n" ^
210 explain (aux errorll)
211 | exn -> None, "Uncaught exception: " ^ Printexc.to_string exn