author  wenzelm 
Wed, 17 Mar 1999 13:33:13 +0100  
changeset 6369  2be75edfe58c 
parent 6311  15652e058e28 
child 6546  995a66249a9b 
permissions  rwrr 
1526  1 
(* Title: Pure/theory.ML 
2 
ID: $Id$ 

3 
Author: Lawrence C Paulson and Markus Wenzel 

4 
Copyright 1996 University of Cambridge 

5 

5025  6 
The abstract type "theory" of theories. 
1526  7 
*) 
8 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

9 
signature BASIC_THEORY = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

10 
sig 
1526  11 
type theory 
12 
exception THEORY of string * theory list 

3996  13 
val rep_theory: theory > 
3814  14 
{sign: Sign.sg, 
3996  15 
axioms: term Symtab.table, 
4996  16 
oracles: ((Sign.sg * Object.T > term) * stamp) Symtab.table, 
4019  17 
parents: theory list, 
18 
ancestors: theory list} 

3996  19 
val sign_of: theory > Sign.sg 
6188  20 
val is_draft: theory > bool 
3996  21 
val syn_of: theory > Syntax.syntax 
22 
val parents_of: theory > theory list 

4019  23 
val ancestors_of: theory > theory list 
3996  24 
val subthy: theory * theory > bool 
25 
val eq_thy: theory * theory > bool 

26 
val cert_axm: Sign.sg > string * term > string * term 

6311  27 
val read_def_axm: Sign.sg * (indexname > typ option) * (indexname > sort option) > 
28 
string list > string * string > string * term 

3996  29 
val read_axm: Sign.sg > string * string > string * term 
30 
val inferT_axm: Sign.sg > string * term > string * term 

31 
val merge_theories: string > theory * theory > theory 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

32 
end 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

33 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

34 
signature THEORY = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

35 
sig 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

36 
include BASIC_THEORY 
3996  37 
val axiomK: string 
38 
val oracleK: string 

4912  39 
(*theory extension primitives*) 
3996  40 
val add_classes: (bclass * xclass list) list > theory > theory 
41 
val add_classes_i: (bclass * class list) list > theory > theory 

42 
val add_classrel: (xclass * xclass) list > theory > theory 

43 
val add_classrel_i: (class * class) list > theory > theory 

44 
val add_defsort: xsort > theory > theory 

45 
val add_defsort_i: sort > theory > theory 

46 
val add_types: (bstring * int * mixfix) list > theory > theory 

4846  47 
val add_nonterminals: bstring list > theory > theory 
3996  48 
val add_tyabbrs: (bstring * string list * string * mixfix) list 
1526  49 
> theory > theory 
3996  50 
val add_tyabbrs_i: (bstring * string list * typ * mixfix) list 
1526  51 
> theory > theory 
3996  52 
val add_arities: (xstring * xsort list * xsort) list > theory > theory 
53 
val add_arities_i: (string * sort list * sort) list > theory > theory 

54 
val add_consts: (bstring * string * mixfix) list > theory > theory 

55 
val add_consts_i: (bstring * typ * mixfix) list > theory > theory 

56 
val add_syntax: (bstring * string * mixfix) list > theory > theory 

57 
val add_syntax_i: (bstring * typ * mixfix) list > theory > theory 

58 
val add_modesyntax: string * bool > (bstring * string * mixfix) list > theory > theory 

59 
val add_modesyntax_i: string * bool > (bstring * typ * mixfix) list > theory > theory 

60 
val add_trfuns: 

4344  61 
(string * (Syntax.ast list > Syntax.ast)) list * 
62 
(string * (term list > term)) list * 

63 
(string * (term list > term)) list * 

64 
(string * (Syntax.ast list > Syntax.ast)) list > theory > theory 

3996  65 
val add_trfunsT: 
4344  66 
(string * (bool > typ > term list > term)) list > theory > theory 
2693  67 
val add_tokentrfuns: 
6311  68 
(string * string * (string > string * real)) list > theory > theory 
69 
val add_mode_tokentrfuns: string > (string * (string > string * real)) list 

70 
> theory > theory 

4617  71 
val add_trrules: (xstring * string) Syntax.trrule list > theory > theory 
3996  72 
val add_trrules_i: Syntax.ast Syntax.trrule list > theory > theory 
73 
val add_axioms: (bstring * string) list > theory > theory 

74 
val add_axioms_i: (bstring * term) list > theory > theory 

4996  75 
val add_oracle: bstring * (Sign.sg * Object.T > term) > theory > theory 
3996  76 
val add_defs: (bstring * string) list > theory > theory 
77 
val add_defs_i: (bstring * term) list > theory > theory 

78 
val add_path: string > theory > theory 

4846  79 
val parent_path: theory > theory 
80 
val root_path: theory > theory 

3996  81 
val add_space: string * string list > theory > theory 
82 
val add_name: string > theory > theory 

5862  83 
val copy: theory > theory 
3996  84 
val prep_ext: theory > theory 
85 
val prep_ext_merge: theory list > theory 

4970  86 
val requires: theory > string > string > unit 
6369  87 
val assert_super: theory > theory > theory 
3996  88 
val pre_pure: theory 
1526  89 
end; 
90 

6188  91 
signature PRIVATE_THEORY = 
5642  92 
sig 
93 
include THEORY 

94 
val init_data: Object.kind > (Object.T * (Object.T > Object.T) * 

95 
(Object.T * Object.T > Object.T) * (Sign.sg > Object.T > unit)) > theory > theory 

96 
val print_data: Object.kind > theory > unit 

97 
val get_data: Object.kind > (Object.T > 'a) > theory > 'a 

98 
val put_data: Object.kind > ('a > Object.T) > 'a > theory > theory 

99 
end; 

1526  100 

5642  101 

6188  102 
structure Theory: PRIVATE_THEORY = 
1526  103 
struct 
2206  104 

3996  105 

2206  106 
(** datatype theory **) 
1526  107 

108 
datatype theory = 

109 
Theory of { 

110 
sign: Sign.sg, 

3996  111 
axioms: term Symtab.table, 
4996  112 
oracles: ((Sign.sg * Object.T > term) * stamp) Symtab.table, 
4019  113 
parents: theory list, 
114 
ancestors: theory list}; 

1526  115 

4996  116 
fun make_theory sign axms oras parents ancestors = 
4019  117 
Theory {sign = sign, axioms = axms, oracles = oras, 
118 
parents = parents, ancestors = ancestors}; 

3996  119 

1526  120 
fun rep_theory (Theory args) = args; 
121 

3996  122 
val sign_of = #sign o rep_theory; 
6188  123 
val is_draft = Sign.is_draft o sign_of; 
3996  124 
val syn_of = #syn o Sign.rep_sg o sign_of; 
125 
val parents_of = #parents o rep_theory; 

4019  126 
val ancestors_of = #ancestors o rep_theory; 
3996  127 

1526  128 
(*errors involving theories*) 
129 
exception THEORY of string * theory list; 

130 

131 
(*compare theories*) 

132 
val subthy = Sign.subsig o pairself sign_of; 

133 
val eq_thy = Sign.eq_sg o pairself sign_of; 

134 

6369  135 
(*check for some theory*) 
4970  136 
fun requires thy name what = 
4846  137 
if exists (equal name) (Sign.stamp_names_of (sign_of thy)) then () 
138 
else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what); 

1526  139 

6369  140 
fun assert_super thy1 thy2 = 
141 
if subthy (thy1, thy2) then thy2 

142 
else raise THEORY ("Not a super theory", [thy1, thy2]); 

143 

4846  144 
(*partial Pure theory*) 
4996  145 
val pre_pure = make_theory Sign.pre_pure Symtab.empty Symtab.empty [] []; 
1526  146 

147 

148 

149 
(** extend theory **) 

150 

3814  151 
(*name space kinds*) 
3996  152 
val axiomK = "axiom"; 
3814  153 
val oracleK = "oracle"; 
154 

155 

156 
(* extend logical part of a theory *) 

157 

1526  158 
fun err_dup_axms names = 
159 
error ("Duplicate axiom name(s) " ^ commas_quote names); 

160 

3814  161 
fun err_dup_oras names = 
162 
error ("Duplicate oracles " ^ commas_quote names); 

163 

4996  164 
fun ext_theory thy ext_sg new_axms new_oras = 
1526  165 
let 
4019  166 
val Theory {sign, axioms, oracles, parents, ancestors} = thy; 
1526  167 
val draft = Sign.is_draft sign; 
3996  168 
val axioms' = 
4488  169 
Symtab.extend (if draft then axioms else Symtab.empty, new_axms) 
1526  170 
handle Symtab.DUPS names => err_dup_axms names; 
3814  171 
val oracles' = 
4488  172 
Symtab.extend (oracles, new_oras) 
3814  173 
handle Symtab.DUPS names => err_dup_oras names; 
4019  174 
val (parents', ancestors') = 
175 
if draft then (parents, ancestors) else ([thy], thy :: ancestors); 

1526  176 
in 
4996  177 
make_theory (ext_sg sign) axioms' oracles' parents' ancestors' 
1526  178 
end; 
179 

180 

181 
(* extend signature of a theory *) 

182 

4996  183 
fun ext_sign extfun decls thy = ext_theory thy (extfun decls) [] []; 
1526  184 

4996  185 
val add_classes = ext_sign Sign.add_classes; 
186 
val add_classes_i = ext_sign Sign.add_classes_i; 

187 
val add_classrel = ext_sign Sign.add_classrel; 

188 
val add_classrel_i = ext_sign Sign.add_classrel_i; 

189 
val add_defsort = ext_sign Sign.add_defsort; 

190 
val add_defsort_i = ext_sign Sign.add_defsort_i; 

191 
val add_types = ext_sign Sign.add_types; 

192 
val add_nonterminals = ext_sign Sign.add_nonterminals; 

193 
val add_tyabbrs = ext_sign Sign.add_tyabbrs; 

194 
val add_tyabbrs_i = ext_sign Sign.add_tyabbrs_i; 

195 
val add_arities = ext_sign Sign.add_arities; 

196 
val add_arities_i = ext_sign Sign.add_arities_i; 

197 
val add_consts = ext_sign Sign.add_consts; 

198 
val add_consts_i = ext_sign Sign.add_consts_i; 

199 
val add_syntax = ext_sign Sign.add_syntax; 

200 
val add_syntax_i = ext_sign Sign.add_syntax_i; 

201 
val add_modesyntax = curry (ext_sign Sign.add_modesyntax); 

202 
val add_modesyntax_i = curry (ext_sign Sign.add_modesyntax_i); 

203 
val add_trfuns = ext_sign Sign.add_trfuns; 

204 
val add_trfunsT = ext_sign Sign.add_trfunsT; 

205 
val add_tokentrfuns = ext_sign Sign.add_tokentrfuns; 

6311  206 
fun add_mode_tokentrfuns m = add_tokentrfuns o map (fn (s, f) => (m, s, f)); 
4996  207 
val add_trrules = ext_sign Sign.add_trrules; 
208 
val add_trrules_i = ext_sign Sign.add_trrules_i; 

209 
val add_path = ext_sign Sign.add_path; 

4846  210 
val parent_path = add_path ".."; 
211 
val root_path = add_path "/"; 

4996  212 
val add_space = ext_sign Sign.add_space; 
213 
val add_name = ext_sign Sign.add_name; 

214 
val prep_ext = ext_sign (K Sign.prep_ext) (); 

5862  215 
val copy = prep_ext; (*an approximation ...*) 
3814  216 

3996  217 

6311  218 

3814  219 
(** add axioms **) 
220 

1526  221 
(* prepare axioms *) 
222 

223 
fun err_in_axm name = 

224 
error ("The error(s) above occurred in axiom " ^ quote name); 

225 

226 
fun no_vars tm = 

227 
if null (term_vars tm) andalso null (term_tvars tm) then tm 

228 
else error "Illegal schematic variable(s) in term"; 

229 

230 
fun cert_axm sg (name, raw_tm) = 

231 
let 

232 
val (t, T, _) = Sign.certify_term sg raw_tm 

2979  233 
handle TYPE (msg, _, _) => error msg 
3996  234 
 TERM (msg, _) => error msg; 
1526  235 
in 
236 
assert (T = propT) "Term not of type prop"; 

237 
(name, no_vars t) 

238 
end 

239 
handle ERROR => err_in_axm name; 

240 

5057  241 
(*some duplication of code with read_def_cterm*) 
242 
fun read_def_axm (sg, types, sorts) used (name, str) = 

3814  243 
let 
244 
val ts = Syntax.read (#syn (Sign.rep_sg sg)) propT str; 

5057  245 
val (t, _) = Sign.infer_types sg types sorts used true (ts, propT); 
1960
ae390b599213
Improved error handling: if there are syntax or typechecking
paulson
parents:
1539
diff
changeset

246 
in cert_axm sg (name,t) end 
ae390b599213
Improved error handling: if there are syntax or typechecking
paulson
parents:
1539
diff
changeset

247 
handle ERROR => err_in_axm name; 
1526  248 

5057  249 
fun read_axm sg name_str = read_def_axm (sg, K None, K None) [] name_str; 
250 

1526  251 
fun inferT_axm sg (name, pre_tm) = 
3814  252 
let 
4251  253 
val (t, _) = Sign.infer_types sg (K None) (K None) [] true ([pre_tm], propT); 
3814  254 
in (name, no_vars t) end 
1526  255 
handle ERROR => err_in_axm name; 
256 

257 

258 
(* extend axioms of a theory *) 

259 

3814  260 
fun ext_axms prep_axm raw_axms (thy as Theory {sign, ...}) = 
1526  261 
let 
3814  262 
val raw_axms' = map (apfst (Sign.full_name sign)) raw_axms; 
263 
val axioms = 

264 
map (apsnd (Term.compress_term o Logic.varify) o prep_axm sign) raw_axms'; 

4996  265 
val ext_sg = Sign.add_space (axiomK, map fst axioms); 
1526  266 
in 
4996  267 
ext_theory thy ext_sg axioms [] 
1526  268 
end; 
269 

270 
val add_axioms = ext_axms read_axm; 

271 
val add_axioms_i = ext_axms cert_axm; 

272 

273 

3814  274 
(* add oracle **) 
275 

276 
fun add_oracle (raw_name, oracle) (thy as Theory {sign, ...}) = 

277 
let 

278 
val name = Sign.full_name sign raw_name; 

4996  279 
val ext_sg = Sign.add_space (oracleK, [name]); 
3814  280 
in 
4996  281 
ext_theory thy ext_sg [] [(name, (oracle, stamp ()))] 
3814  282 
end; 
283 

284 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

285 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

286 
(** add constant definitions **) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

287 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

288 
(* all_axioms_of *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

289 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

290 
(*results may contain duplicates!*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

291 

4019  292 
fun all_axioms_of thy = 
293 
flat (map (Symtab.dest o #axioms o rep_theory) (thy :: ancestors_of thy)); 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

294 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

295 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

296 
(* clash_types, clash_consts *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

297 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

298 
(*check if types have common instance (ignoring sorts)*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

299 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

300 
fun clash_types ty1 ty2 = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

301 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

302 
val ty1' = Type.varifyT ty1; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

303 
val ty2' = incr_tvar (maxidx_of_typ ty1' + 1) (Type.varifyT ty2); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

304 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

305 
Type.raw_unify (ty1', ty2') 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

306 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

307 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

308 
fun clash_consts (c1, ty1) (c2, ty2) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

309 
c1 = c2 andalso clash_types ty1 ty2; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

310 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

311 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

312 
(* clash_defns *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

313 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

314 
fun clash_defn c_ty (name, tm) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

315 
let val (c, ty') = dest_Const (head_of (fst (Logic.dest_equals tm))) in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

316 
if clash_consts c_ty (c, ty') then Some (name, ty') else None 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

317 
end handle TERM _ => None; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

318 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

319 
fun clash_defns c_ty axms = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

320 
distinct (mapfilter (clash_defn c_ty) axms); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

321 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

322 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

323 
(* dest_defn *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

324 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

325 
fun dest_defn tm = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

326 
let 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

327 
fun err msg = raise TERM (msg, [tm]); 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

328 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

329 
val (lhs, rhs) = Logic.dest_equals (Logic.strip_imp_concl tm) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

330 
handle TERM _ => err "Not a metaequality (==)"; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

331 
val (head, args) = strip_comb lhs; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

332 
val (c, ty) = dest_Const head 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

333 
handle TERM _ => err "Head of lhs not a constant"; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

334 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

335 
fun occs_const (Const c_ty') = (c_ty' = (c, ty)) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

336 
 occs_const (Abs (_, _, t)) = occs_const t 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

337 
 occs_const (t $ u) = occs_const t orelse occs_const u 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

338 
 occs_const _ = false; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

339 

4141  340 
fun dest_free (Free (x, _)) = x 
341 
 dest_free (Const ("TYPE", Type ("itself", [TFree (x, _)]))) = x 

342 
 dest_free _ = raise Match; 

343 

344 
val show_frees = commas_quote o map dest_free; 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

345 
val show_tfrees = commas_quote o map fst; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

346 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

347 
val lhs_dups = duplicates args; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

348 
val rhs_extras = gen_rems (op =) (term_frees rhs, args); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

349 
val rhs_extrasT = gen_rems (op =) (term_tfrees rhs, typ_tfrees ty); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

350 
in 
4141  351 
if not (forall (can dest_free) args) then 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

352 
err "Arguments (on lhs) must be variables" 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

353 
else if not (null lhs_dups) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

354 
err ("Duplicate variables on lhs: " ^ show_frees lhs_dups) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

355 
else if not (null rhs_extras) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

356 
err ("Extra variables on rhs: " ^ show_frees rhs_extras) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

357 
else if not (null rhs_extrasT) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

358 
err ("Extra type variables on rhs: " ^ show_tfrees rhs_extrasT) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

359 
else if occs_const rhs then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

360 
err ("Constant to be defined occurs on rhs") 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

361 
else (c, ty) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

362 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

363 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

364 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

365 
(* check_defn *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

366 

3814  367 
fun err_in_defn sg name msg = 
4974  368 
(error_msg msg; error ("The error(s) above occurred in definition " ^ 
3814  369 
quote (Sign.full_name sg name))); 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

370 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

371 
fun check_defn sign (axms, (name, tm)) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

372 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

373 
fun show_const (c, ty) = quote (Pretty.string_of (Pretty.block 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

374 
[Pretty.str (c ^ " ::"), Pretty.brk 1, Sign.pretty_typ sign ty])); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

375 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

376 
fun show_defn c (dfn, ty') = show_const (c, ty') ^ " in " ^ dfn; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

377 
fun show_defns c = cat_lines o map (show_defn c); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

378 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

379 
val (c, ty) = dest_defn tm 
3814  380 
handle TERM (msg, _) => err_in_defn sign name msg; 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

381 
val defns = clash_defns (c, ty) axms; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

382 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

383 
if not (null defns) then 
3814  384 
err_in_defn sign name ("Definition of " ^ show_const (c, ty) ^ 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

385 
"\nclashes with " ^ show_defns c defns) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

386 
else (name, tm) :: axms 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

387 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

388 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

389 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

390 
(* add_defs *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

391 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

392 
fun ext_defns prep_axm raw_axms thy = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

393 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

394 
val axms = map (prep_axm (sign_of thy)) raw_axms; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

395 
val all_axms = all_axioms_of thy; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

396 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

397 
foldl (check_defn (sign_of thy)) (all_axms, axms); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

398 
add_axioms_i axms thy 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

399 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

400 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

401 
val add_defs_i = ext_defns cert_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

402 
val add_defs = ext_defns read_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

403 

e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

404 

3878  405 

3865  406 
(** additional theory data **) 
407 

4996  408 
val init_data = curry (ext_sign Sign.init_data); 
409 
fun print_data kind = Sign.print_data kind o sign_of; 

410 
fun get_data kind f = Sign.get_data kind f o sign_of; 

411 
fun put_data kind f = ext_sign (Sign.put_data kind f); 

3865  412 

413 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

414 

4019  415 
(** merge theories **) (*exception ERROR*) 
416 

417 
fun merge_sign (sg, thy) = 

4627  418 
Sign.nontriv_merge (sg, sign_of thy) handle TERM (msg, _) => error msg; 
1526  419 

3878  420 
(*merge list of theories from left to right, preparing extend*) 
3967
edd5ff9371f8
sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents:
3956
diff
changeset

421 
fun prep_ext_merge thys = 
3996  422 
if null thys then 
4019  423 
error "Merge: no parent theories" 
6188  424 
else if exists is_draft thys then 
4019  425 
error "Attempt to merge draft theories" 
3996  426 
else 
427 
let 

428 
val sign' = 

4019  429 
foldl merge_sign (sign_of (hd thys), tl thys) 
3996  430 
> Sign.prep_ext 
431 
> Sign.add_path "/"; 

3814  432 

4488  433 
val axioms' = Symtab.empty; 
4019  434 

3996  435 
fun eq_ora ((_, (_, s1: stamp)), (_, (_, s2))) = s1 = s2; 
436 
val oracles' = 

437 
Symtab.make (gen_distinct eq_ora 

438 
(flat (map (Symtab.dest o #oracles o rep_theory) thys))) 

439 
handle Symtab.DUPS names => err_dup_oras names; 

4019  440 

441 
val parents' = gen_distinct eq_thy thys; 

442 
val ancestors' = 

443 
gen_distinct eq_thy (parents' @ flat (map ancestors_of thys)); 

3996  444 
in 
4996  445 
make_theory sign' axioms' oracles' parents' ancestors' 
3996  446 
end; 
1526  447 

3885  448 
fun merge_theories name (thy1, thy2) = 
3967
edd5ff9371f8
sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents:
3956
diff
changeset

449 
prep_ext_merge [thy1, thy2] 
3885  450 
> add_name name; 
451 

452 

1526  453 
end; 
454 

3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

455 
structure BasicTheory: BASIC_THEORY = Theory; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

456 
open BasicTheory; 