author  wenzelm 
Thu, 12 Feb 1998 12:36:28 +0100  
changeset 4617  cea2a5b5ee10 
parent 4488  3e56603fde06 
child 4627  ae95666c71cc 
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 

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

6 
Theories. 
1526  7 
*) 
8 

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

9 
(*this part made pervasive*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

10 
signature BASIC_THEORY = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

11 
sig 
1526  12 
type theory 
13 
exception THEORY of string * theory list 

3996  14 
val rep_theory: theory > 
3814  15 
{sign: Sign.sg, 
3996  16 
axioms: term Symtab.table, 
4124  17 
oracles: ((Sign.sg * object > term) * stamp) Symtab.table, 
4019  18 
parents: theory list, 
19 
ancestors: theory list} 

3996  20 
val sign_of: theory > Sign.sg 
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 

27 
val read_axm: Sign.sg > string * string > string * term 

28 
val inferT_axm: Sign.sg > string * term > string * term 

29 
val merge_theories: string > theory * theory > theory 

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

30 
end 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

31 

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

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

33 
sig 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

34 
include BASIC_THEORY 
3996  35 
val axiomK: string 
36 
val oracleK: string 

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

37 
(*theory extendsion primitives*) 
3996  38 
val add_classes: (bclass * xclass list) list > theory > theory 
39 
val add_classes_i: (bclass * class list) list > theory > theory 

40 
val add_classrel: (xclass * xclass) list > theory > theory 

41 
val add_classrel_i: (class * class) list > theory > theory 

42 
val add_defsort: xsort > theory > theory 

43 
val add_defsort_i: sort > theory > theory 

44 
val add_types: (bstring * int * mixfix) list > theory > theory 

45 
val add_tyabbrs: (bstring * string list * string * mixfix) list 

1526  46 
> theory > theory 
3996  47 
val add_tyabbrs_i: (bstring * string list * typ * mixfix) list 
1526  48 
> theory > theory 
3996  49 
val add_arities: (xstring * xsort list * xsort) list > theory > theory 
50 
val add_arities_i: (string * sort list * sort) list > theory > theory 

51 
val add_consts: (bstring * string * mixfix) list > theory > theory 

52 
val add_consts_i: (bstring * typ * mixfix) list > theory > theory 

53 
val add_syntax: (bstring * string * mixfix) list > theory > theory 

54 
val add_syntax_i: (bstring * typ * mixfix) list > theory > theory 

55 
val add_modesyntax: string * bool > (bstring * string * mixfix) list > theory > theory 

56 
val add_modesyntax_i: string * bool > (bstring * typ * mixfix) list > theory > theory 

57 
val add_trfuns: 

4344  58 
(string * (Syntax.ast list > Syntax.ast)) list * 
59 
(string * (term list > term)) list * 

60 
(string * (term list > term)) list * 

61 
(string * (Syntax.ast list > Syntax.ast)) list > theory > theory 

3996  62 
val add_trfunsT: 
4344  63 
(string * (bool > typ > term list > term)) list > theory > theory 
2693  64 
val add_tokentrfuns: 
65 
(string * string * (string > string * int)) list > theory > theory 

4617  66 
val add_trrules: (xstring * string) Syntax.trrule list > theory > theory 
3996  67 
val add_trrules_i: Syntax.ast Syntax.trrule list > theory > theory 
68 
val add_axioms: (bstring * string) list > theory > theory 

69 
val add_axioms_i: (bstring * term) list > theory > theory 

4124  70 
val add_oracle: bstring * (Sign.sg * object > term) > theory > theory 
3996  71 
val add_defs: (bstring * string) list > theory > theory 
72 
val add_defs_i: (bstring * term) list > theory > theory 

73 
val add_path: string > theory > theory 

74 
val add_space: string * string list > theory > theory 

75 
val add_name: string > theory > theory 

4124  76 
val init_data: (string * (object * (object > object) * 
4257  77 
(object * object > object) * (Sign.sg > object > unit))) list > theory > theory 
4124  78 
val get_data: theory > string > object 
79 
val put_data: string * object > theory > theory 

3996  80 
val prep_ext: theory > theory 
81 
val prep_ext_merge: theory list > theory 

82 
val pre_pure: theory 

1526  83 
end; 
84 

85 

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

86 
structure Theory: THEORY = 
1526  87 
struct 
2206  88 

3996  89 

2206  90 
(** datatype theory **) 
1526  91 

92 
datatype theory = 

93 
Theory of { 

94 
sign: Sign.sg, 

3996  95 
axioms: term Symtab.table, 
4124  96 
oracles: ((Sign.sg * object > term) * stamp) Symtab.table, 
4019  97 
parents: theory list, 
98 
ancestors: theory list}; 

1526  99 

4019  100 
fun make_thy sign axms oras parents ancestors = 
101 
Theory {sign = sign, axioms = axms, oracles = oras, 

102 
parents = parents, ancestors = ancestors}; 

3996  103 

1526  104 
fun rep_theory (Theory args) = args; 
105 

3996  106 
val sign_of = #sign o rep_theory; 
107 
val syn_of = #syn o Sign.rep_sg o sign_of; 

108 
val parents_of = #parents o rep_theory; 

4019  109 
val ancestors_of = #ancestors o rep_theory; 
3996  110 

1526  111 
(*errors involving theories*) 
112 
exception THEORY of string * theory list; 

113 

114 
(*compare theories*) 

115 
val subthy = Sign.subsig o pairself sign_of; 

116 
val eq_thy = Sign.eq_sg o pairself sign_of; 

117 

118 

3996  119 
(* partial Pure theory *) 
1526  120 

4488  121 
val pre_pure = make_thy Sign.pre_pure Symtab.empty Symtab.empty [] []; 
1526  122 

123 

124 

125 
(** extend theory **) 

126 

3814  127 
(*name space kinds*) 
3996  128 
val axiomK = "axiom"; 
3814  129 
val oracleK = "oracle"; 
130 

131 

132 
(* extend logical part of a theory *) 

133 

1526  134 
fun err_dup_axms names = 
135 
error ("Duplicate axiom name(s) " ^ commas_quote names); 

136 

3814  137 
fun err_dup_oras names = 
138 
error ("Duplicate oracles " ^ commas_quote names); 

139 

140 

141 
fun ext_thy thy sign' new_axms new_oras = 

1526  142 
let 
4019  143 
val Theory {sign, axioms, oracles, parents, ancestors} = thy; 
1526  144 
val draft = Sign.is_draft sign; 
3996  145 
val axioms' = 
4488  146 
Symtab.extend (if draft then axioms else Symtab.empty, new_axms) 
1526  147 
handle Symtab.DUPS names => err_dup_axms names; 
3814  148 
val oracles' = 
4488  149 
Symtab.extend (oracles, new_oras) 
3814  150 
handle Symtab.DUPS names => err_dup_oras names; 
4019  151 
val (parents', ancestors') = 
152 
if draft then (parents, ancestors) else ([thy], thy :: ancestors); 

1526  153 
in 
4019  154 
make_thy sign' axioms' oracles' parents' ancestors' 
1526  155 
end; 
156 

157 

158 
(* extend signature of a theory *) 

159 

160 
fun ext_sg extfun decls (thy as Theory {sign, ...}) = 

3814  161 
ext_thy thy (extfun decls sign) [] []; 
1526  162 

2206  163 
val add_classes = ext_sg Sign.add_classes; 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

164 
val add_classes_i = ext_sg Sign.add_classes_i; 
2206  165 
val add_classrel = ext_sg Sign.add_classrel; 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

166 
val add_classrel_i = ext_sg Sign.add_classrel_i; 
2206  167 
val add_defsort = ext_sg Sign.add_defsort; 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

168 
val add_defsort_i = ext_sg Sign.add_defsort_i; 
2206  169 
val add_types = ext_sg Sign.add_types; 
170 
val add_tyabbrs = ext_sg Sign.add_tyabbrs; 

171 
val add_tyabbrs_i = ext_sg Sign.add_tyabbrs_i; 

172 
val add_arities = ext_sg Sign.add_arities; 

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

173 
val add_arities_i = ext_sg Sign.add_arities_i; 
2206  174 
val add_consts = ext_sg Sign.add_consts; 
175 
val add_consts_i = ext_sg Sign.add_consts_i; 

176 
val add_syntax = ext_sg Sign.add_syntax; 

177 
val add_syntax_i = ext_sg Sign.add_syntax_i; 

178 
val add_modesyntax = curry (ext_sg Sign.add_modesyntax); 

179 
val add_modesyntax_i = curry (ext_sg Sign.add_modesyntax_i); 

180 
val add_trfuns = ext_sg Sign.add_trfuns; 

2385  181 
val add_trfunsT = ext_sg Sign.add_trfunsT; 
2693  182 
val add_tokentrfuns = ext_sg Sign.add_tokentrfuns; 
2206  183 
val add_trrules = ext_sg Sign.add_trrules; 
184 
val add_trrules_i = ext_sg Sign.add_trrules_i; 

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

185 
val add_path = ext_sg Sign.add_path; 
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

186 
val add_space = ext_sg Sign.add_space; 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

187 
val add_name = ext_sg Sign.add_name; 
3971  188 
val prep_ext = ext_sg (K Sign.prep_ext) (); 
1526  189 

3814  190 

3996  191 

3814  192 
(** add axioms **) 
193 

1526  194 
(* prepare axioms *) 
195 

196 
fun err_in_axm name = 

197 
error ("The error(s) above occurred in axiom " ^ quote name); 

198 

199 
fun no_vars tm = 

200 
if null (term_vars tm) andalso null (term_tvars tm) then tm 

201 
else error "Illegal schematic variable(s) in term"; 

202 

203 
fun cert_axm sg (name, raw_tm) = 

204 
let 

205 
val (t, T, _) = Sign.certify_term sg raw_tm 

2979  206 
handle TYPE (msg, _, _) => error msg 
3996  207 
 TERM (msg, _) => error msg; 
1526  208 
in 
209 
assert (T = propT) "Term not of type prop"; 

210 
(name, no_vars t) 

211 
end 

212 
handle ERROR => err_in_axm name; 

213 

214 
(*Some duplication of code with read_def_cterm*) 

215 
fun read_axm sg (name, str) = 

3814  216 
let 
217 
val ts = Syntax.read (#syn (Sign.rep_sg sg)) propT str; 

4251  218 
val (t, _) = Sign.infer_types sg (K None) (K None) [] true (ts, propT); 
1960
ae390b599213
Improved error handling: if there are syntax or typechecking
paulson
parents:
1539
diff
changeset

219 
in cert_axm sg (name,t) end 
ae390b599213
Improved error handling: if there are syntax or typechecking
paulson
parents:
1539
diff
changeset

220 
handle ERROR => err_in_axm name; 
1526  221 

222 
fun inferT_axm sg (name, pre_tm) = 

3814  223 
let 
4251  224 
val (t, _) = Sign.infer_types sg (K None) (K None) [] true ([pre_tm], propT); 
3814  225 
in (name, no_vars t) end 
1526  226 
handle ERROR => err_in_axm name; 
227 

228 

229 
(* extend axioms of a theory *) 

230 

3814  231 
fun ext_axms prep_axm raw_axms (thy as Theory {sign, ...}) = 
1526  232 
let 
3814  233 
val raw_axms' = map (apfst (Sign.full_name sign)) raw_axms; 
234 
val axioms = 

235 
map (apsnd (Term.compress_term o Logic.varify) o prep_axm sign) raw_axms'; 

3996  236 
val sign' = Sign.add_space (axiomK, map fst axioms) sign; 
1526  237 
in 
3814  238 
ext_thy thy sign' axioms [] 
1526  239 
end; 
240 

241 
val add_axioms = ext_axms read_axm; 

242 
val add_axioms_i = ext_axms cert_axm; 

243 

244 

3814  245 
(* add oracle **) 
246 

247 
fun add_oracle (raw_name, oracle) (thy as Theory {sign, ...}) = 

248 
let 

249 
val name = Sign.full_name sign raw_name; 

250 
val sign' = Sign.add_space (oracleK, [name]) sign; 

251 
in 

252 
ext_thy thy sign' [] [(name, (oracle, stamp ()))] 

253 
end; 

254 

255 

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

256 

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

257 
(** add constant definitions **) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

258 

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

259 
(* all_axioms_of *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

260 

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

261 
(*results may contain duplicates!*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

262 

4019  263 
fun all_axioms_of thy = 
264 
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

265 

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

266 

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

267 
(* clash_types, clash_consts *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

268 

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

269 
(*check if types have common instance (ignoring sorts)*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

270 

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

271 
fun clash_types ty1 ty2 = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

272 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

273 
val ty1' = Type.varifyT ty1; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

274 
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

275 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

276 
Type.raw_unify (ty1', ty2') 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

277 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

278 

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

279 
fun clash_consts (c1, ty1) (c2, ty2) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

280 
c1 = c2 andalso clash_types ty1 ty2; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

281 

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

282 

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

283 
(* clash_defns *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

284 

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

285 
fun clash_defn c_ty (name, tm) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

286 
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

287 
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

288 
end handle TERM _ => None; 
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 
fun clash_defns c_ty axms = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

291 
distinct (mapfilter (clash_defn c_ty) axms); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

292 

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

293 

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

294 
(* dest_defn *) 
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 
fun dest_defn tm = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

297 
let 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

298 
fun err msg = raise TERM (msg, [tm]); 
3767
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 
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

301 
handle TERM _ => err "Not a metaequality (==)"; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

302 
val (head, args) = strip_comb lhs; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

303 
val (c, ty) = dest_Const head 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

304 
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

305 

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

306 
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

307 
 occs_const (Abs (_, _, t)) = occs_const t 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

308 
 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

309 
 occs_const _ = false; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

310 

4141  311 
fun dest_free (Free (x, _)) = x 
312 
 dest_free (Const ("TYPE", Type ("itself", [TFree (x, _)]))) = x 

313 
 dest_free _ = raise Match; 

314 

315 
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

316 
val show_tfrees = commas_quote o map fst; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

317 

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

318 
val lhs_dups = duplicates args; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

319 
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

320 
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

321 
in 
4141  322 
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

323 
err "Arguments (on lhs) must be variables" 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

324 
else if not (null lhs_dups) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

325 
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

326 
else if not (null rhs_extras) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

327 
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

328 
else if not (null rhs_extrasT) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

329 
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

330 
else if occs_const rhs then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

331 
err ("Constant to be defined occurs on rhs") 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

333 
end; 
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 

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

336 
(* check_defn *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

337 

3814  338 
fun err_in_defn sg name msg = 
339 
(writeln msg; error ("The error(s) above occurred in definition " ^ 

340 
quote (Sign.full_name sg name))); 

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

341 

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

342 
fun check_defn sign (axms, (name, tm)) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

343 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

344 
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

345 
[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

346 

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

347 
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

348 
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

349 

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

350 
val (c, ty) = dest_defn tm 
3814  351 
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

352 
val defns = clash_defns (c, ty) axms; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

353 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

354 
if not (null defns) then 
3814  355 
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

356 
"\nclashes with " ^ show_defns c defns) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

357 
else (name, tm) :: axms 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

358 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

359 

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

360 

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

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

362 

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

363 
fun ext_defns prep_axm raw_axms thy = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

364 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

365 
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

366 
val all_axms = all_axioms_of thy; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

367 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

368 
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

369 
add_axioms_i axms thy 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

370 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

371 

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

372 
val add_defs_i = ext_defns cert_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

373 
val add_defs = ext_defns read_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

374 

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

375 

3878  376 

3865  377 
(** additional theory data **) 
378 

4048  379 
fun init_data ds = foldl (op o) (I, map (ext_sg Sign.init_data) ds); 
3865  380 
val get_data = Sign.get_data o sign_of; 
381 
val put_data = ext_sg Sign.put_data; 

382 

383 

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

384 

4019  385 
(** merge theories **) (*exception ERROR*) 
386 

387 
fun merge_sign (sg, thy) = 

388 
Sign.merge (sg, sign_of thy) handle TERM (msg, _) => error msg; 

1526  389 

3878  390 
(*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

391 
fun prep_ext_merge thys = 
3996  392 
if null thys then 
4019  393 
error "Merge: no parent theories" 
3996  394 
else if exists (Sign.is_draft o sign_of) thys then 
4019  395 
error "Attempt to merge draft theories" 
3996  396 
else 
397 
let 

398 
val sign' = 

4019  399 
foldl merge_sign (sign_of (hd thys), tl thys) 
3996  400 
> Sign.prep_ext 
401 
> Sign.add_path "/"; 

3814  402 

4488  403 
val axioms' = Symtab.empty; 
4019  404 

3996  405 
fun eq_ora ((_, (_, s1: stamp)), (_, (_, s2))) = s1 = s2; 
406 
val oracles' = 

407 
Symtab.make (gen_distinct eq_ora 

408 
(flat (map (Symtab.dest o #oracles o rep_theory) thys))) 

409 
handle Symtab.DUPS names => err_dup_oras names; 

4019  410 

411 
val parents' = gen_distinct eq_thy thys; 

412 
val ancestors' = 

413 
gen_distinct eq_thy (parents' @ flat (map ancestors_of thys)); 

3996  414 
in 
4019  415 
make_thy sign' axioms' oracles' parents' ancestors' 
3996  416 
end; 
1526  417 

3885  418 
fun merge_theories name (thy1, thy2) = 
3967
edd5ff9371f8
sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents:
3956
diff
changeset

419 
prep_ext_merge [thy1, thy2] 
3885  420 
> add_name name; 
421 

422 

1526  423 
end; 
424 

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

425 
structure BasicTheory: BASIC_THEORY = Theory; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

426 
open BasicTheory; 