author  wenzelm 
Wed, 29 Apr 1998 11:17:14 +0200  
changeset 4846  9c072489a9e7 
parent 4786  9b6072bd71e4 
child 4912  9ac1c22dfe43 
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 
4786  13 
type local_theory 
1526  14 
exception THEORY of string * theory list 
3996  15 
val rep_theory: theory > 
3814  16 
{sign: Sign.sg, 
3996  17 
axioms: term Symtab.table, 
4124  18 
oracles: ((Sign.sg * object > term) * stamp) Symtab.table, 
4019  19 
parents: theory list, 
20 
ancestors: theory list} 

3996  21 
val sign_of: theory > Sign.sg 
22 
val syn_of: theory > Syntax.syntax 

23 
val parents_of: theory > theory list 

4019  24 
val ancestors_of: theory > theory list 
3996  25 
val subthy: theory * theory > bool 
26 
val eq_thy: theory * theory > bool 

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

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

29 
val inferT_axm: Sign.sg > string * term > string * term 

30 
val merge_theories: string > theory * theory > theory 

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

31 
end 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

32 

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

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

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

35 
include BASIC_THEORY 
4846  36 
val apply: (theory > theory) list > theory > theory 
3996  37 
val axiomK: string 
38 
val oracleK: string 

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

39 
(*theory extendsion 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: 
68 
(string * string * (string > string * int)) list > theory > theory 

4617  69 
val add_trrules: (xstring * string) Syntax.trrule list > theory > theory 
3996  70 
val add_trrules_i: Syntax.ast Syntax.trrule list > theory > theory 
71 
val add_axioms: (bstring * string) list > theory > theory 

72 
val add_axioms_i: (bstring * term) list > theory > theory 

4124  73 
val add_oracle: bstring * (Sign.sg * object > term) > theory > theory 
3996  74 
val add_defs: (bstring * string) list > theory > theory 
75 
val add_defs_i: (bstring * term) list > theory > theory 

76 
val add_path: string > theory > theory 

4846  77 
val parent_path: theory > theory 
78 
val root_path: theory > theory 

3996  79 
val add_space: string * string list > theory > theory 
80 
val add_name: string > theory > theory 

4124  81 
val init_data: (string * (object * (object > object) * 
4257  82 
(object * object > object) * (Sign.sg > object > unit))) list > theory > theory 
4124  83 
val get_data: theory > string > object 
84 
val put_data: string * object > theory > theory 

3996  85 
val prep_ext: theory > theory 
86 
val prep_ext_merge: theory list > theory 

4846  87 
val require: theory > string > string > unit 
3996  88 
val pre_pure: theory 
1526  89 
end; 
90 

91 

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

92 
structure Theory: THEORY = 
1526  93 
struct 
2206  94 

3996  95 

2206  96 
(** datatype theory **) 
1526  97 

98 
datatype theory = 

99 
Theory of { 

100 
sign: Sign.sg, 

3996  101 
axioms: term Symtab.table, 
4124  102 
oracles: ((Sign.sg * object > term) * stamp) Symtab.table, 
4019  103 
parents: theory list, 
104 
ancestors: theory list}; 

1526  105 

4786  106 
(*forward definition for Isar proof contexts*) 
107 
type local_theory = theory * object Symtab.table; 

108 

4019  109 
fun make_thy sign axms oras parents ancestors = 
110 
Theory {sign = sign, axioms = axms, oracles = oras, 

111 
parents = parents, ancestors = ancestors}; 

3996  112 

1526  113 
fun rep_theory (Theory args) = args; 
114 

3996  115 
val sign_of = #sign o rep_theory; 
116 
val syn_of = #syn o Sign.rep_sg o sign_of; 

117 
val parents_of = #parents o rep_theory; 

4019  118 
val ancestors_of = #ancestors o rep_theory; 
3996  119 

1526  120 
(*errors involving theories*) 
121 
exception THEORY of string * theory list; 

122 

123 
(*compare theories*) 

124 
val subthy = Sign.subsig o pairself sign_of; 

125 
val eq_thy = Sign.eq_sg o pairself sign_of; 

126 

4846  127 
(*check for some named theory*) 
128 
fun require thy name what = 

129 
if exists (equal name) (Sign.stamp_names_of (sign_of thy)) then () 

130 
else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what); 

1526  131 

4846  132 
(*partial Pure theory*) 
133 
val pre_pure = make_thy Sign.pre_pure Symtab.empty Symtab.empty [] []; 

1526  134 

4846  135 
(*apply transformers*) 
136 
fun apply [] thy = thy 

137 
 apply (f :: fs) thy = apply fs (f thy); 

1526  138 

139 

140 

141 
(** extend theory **) 

142 

3814  143 
(*name space kinds*) 
3996  144 
val axiomK = "axiom"; 
3814  145 
val oracleK = "oracle"; 
146 

147 

148 
(* extend logical part of a theory *) 

149 

1526  150 
fun err_dup_axms names = 
151 
error ("Duplicate axiom name(s) " ^ commas_quote names); 

152 

3814  153 
fun err_dup_oras names = 
154 
error ("Duplicate oracles " ^ commas_quote names); 

155 

156 

157 
fun ext_thy thy sign' new_axms new_oras = 

1526  158 
let 
4019  159 
val Theory {sign, axioms, oracles, parents, ancestors} = thy; 
1526  160 
val draft = Sign.is_draft sign; 
3996  161 
val axioms' = 
4488  162 
Symtab.extend (if draft then axioms else Symtab.empty, new_axms) 
1526  163 
handle Symtab.DUPS names => err_dup_axms names; 
3814  164 
val oracles' = 
4488  165 
Symtab.extend (oracles, new_oras) 
3814  166 
handle Symtab.DUPS names => err_dup_oras names; 
4019  167 
val (parents', ancestors') = 
168 
if draft then (parents, ancestors) else ([thy], thy :: ancestors); 

1526  169 
in 
4019  170 
make_thy sign' axioms' oracles' parents' ancestors' 
1526  171 
end; 
172 

173 

174 
(* extend signature of a theory *) 

175 

176 
fun ext_sg extfun decls (thy as Theory {sign, ...}) = 

3814  177 
ext_thy thy (extfun decls sign) [] []; 
1526  178 

2206  179 
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

180 
val add_classes_i = ext_sg Sign.add_classes_i; 
2206  181 
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

182 
val add_classrel_i = ext_sg Sign.add_classrel_i; 
2206  183 
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

184 
val add_defsort_i = ext_sg Sign.add_defsort_i; 
2206  185 
val add_types = ext_sg Sign.add_types; 
4846  186 
val add_nonterminals = ext_sg Sign.add_nonterminals; 
2206  187 
val add_tyabbrs = ext_sg Sign.add_tyabbrs; 
188 
val add_tyabbrs_i = ext_sg Sign.add_tyabbrs_i; 

189 
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

190 
val add_arities_i = ext_sg Sign.add_arities_i; 
2206  191 
val add_consts = ext_sg Sign.add_consts; 
192 
val add_consts_i = ext_sg Sign.add_consts_i; 

193 
val add_syntax = ext_sg Sign.add_syntax; 

194 
val add_syntax_i = ext_sg Sign.add_syntax_i; 

195 
val add_modesyntax = curry (ext_sg Sign.add_modesyntax); 

196 
val add_modesyntax_i = curry (ext_sg Sign.add_modesyntax_i); 

197 
val add_trfuns = ext_sg Sign.add_trfuns; 

2385  198 
val add_trfunsT = ext_sg Sign.add_trfunsT; 
2693  199 
val add_tokentrfuns = ext_sg Sign.add_tokentrfuns; 
2206  200 
val add_trrules = ext_sg Sign.add_trrules; 
201 
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

202 
val add_path = ext_sg Sign.add_path; 
4846  203 
val parent_path = add_path ".."; 
204 
val root_path = add_path "/"; 

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

205 
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

206 
val add_name = ext_sg Sign.add_name; 
3971  207 
val prep_ext = ext_sg (K Sign.prep_ext) (); 
1526  208 

3814  209 

3996  210 

3814  211 
(** add axioms **) 
212 

1526  213 
(* prepare axioms *) 
214 

215 
fun err_in_axm name = 

216 
error ("The error(s) above occurred in axiom " ^ quote name); 

217 

218 
fun no_vars tm = 

219 
if null (term_vars tm) andalso null (term_tvars tm) then tm 

220 
else error "Illegal schematic variable(s) in term"; 

221 

222 
fun cert_axm sg (name, raw_tm) = 

223 
let 

224 
val (t, T, _) = Sign.certify_term sg raw_tm 

2979  225 
handle TYPE (msg, _, _) => error msg 
3996  226 
 TERM (msg, _) => error msg; 
1526  227 
in 
228 
assert (T = propT) "Term not of type prop"; 

229 
(name, no_vars t) 

230 
end 

231 
handle ERROR => err_in_axm name; 

232 

233 
(*Some duplication of code with read_def_cterm*) 

234 
fun read_axm sg (name, str) = 

3814  235 
let 
236 
val ts = Syntax.read (#syn (Sign.rep_sg sg)) propT str; 

4251  237 
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

238 
in cert_axm sg (name,t) end 
ae390b599213
Improved error handling: if there are syntax or typechecking
paulson
parents:
1539
diff
changeset

239 
handle ERROR => err_in_axm name; 
1526  240 

241 
fun inferT_axm sg (name, pre_tm) = 

3814  242 
let 
4251  243 
val (t, _) = Sign.infer_types sg (K None) (K None) [] true ([pre_tm], propT); 
3814  244 
in (name, no_vars t) end 
1526  245 
handle ERROR => err_in_axm name; 
246 

247 

248 
(* extend axioms of a theory *) 

249 

3814  250 
fun ext_axms prep_axm raw_axms (thy as Theory {sign, ...}) = 
1526  251 
let 
3814  252 
val raw_axms' = map (apfst (Sign.full_name sign)) raw_axms; 
253 
val axioms = 

254 
map (apsnd (Term.compress_term o Logic.varify) o prep_axm sign) raw_axms'; 

3996  255 
val sign' = Sign.add_space (axiomK, map fst axioms) sign; 
1526  256 
in 
3814  257 
ext_thy thy sign' axioms [] 
1526  258 
end; 
259 

260 
val add_axioms = ext_axms read_axm; 

261 
val add_axioms_i = ext_axms cert_axm; 

262 

263 

3814  264 
(* add oracle **) 
265 

266 
fun add_oracle (raw_name, oracle) (thy as Theory {sign, ...}) = 

267 
let 

268 
val name = Sign.full_name sign raw_name; 

269 
val sign' = Sign.add_space (oracleK, [name]) sign; 

270 
in 

271 
ext_thy thy sign' [] [(name, (oracle, stamp ()))] 

272 
end; 

273 

274 

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

275 

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

276 
(** add constant definitions **) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

277 

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

278 
(* all_axioms_of *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

279 

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

280 
(*results may contain duplicates!*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

281 

4019  282 
fun all_axioms_of thy = 
283 
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

284 

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 
(* clash_types, clash_consts *) 
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 
(*check if types have common instance (ignoring sorts)*) 
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_types ty1 ty2 = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

291 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

292 
val ty1' = Type.varifyT ty1; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

293 
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

294 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

295 
Type.raw_unify (ty1', ty2') 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

296 
end; 
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 
fun clash_consts (c1, ty1) (c2, ty2) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

299 
c1 = c2 andalso clash_types ty1 ty2; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

300 

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

301 

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

302 
(* clash_defns *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

303 

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

304 
fun clash_defn c_ty (name, tm) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

305 
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

306 
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

307 
end handle TERM _ => None; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

308 

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

309 
fun clash_defns c_ty axms = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

310 
distinct (mapfilter (clash_defn c_ty) axms); 
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 

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

313 
(* dest_defn *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

314 

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

315 
fun dest_defn tm = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

316 
let 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

317 
fun err msg = raise TERM (msg, [tm]); 
3767
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 
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

320 
handle TERM _ => err "Not a metaequality (==)"; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

321 
val (head, args) = strip_comb lhs; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

322 
val (c, ty) = dest_Const head 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

323 
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

324 

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

325 
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

326 
 occs_const (Abs (_, _, t)) = occs_const t 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

327 
 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

328 
 occs_const _ = false; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

329 

4141  330 
fun dest_free (Free (x, _)) = x 
331 
 dest_free (Const ("TYPE", Type ("itself", [TFree (x, _)]))) = x 

332 
 dest_free _ = raise Match; 

333 

334 
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

335 
val show_tfrees = commas_quote o map fst; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

336 

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

337 
val lhs_dups = duplicates args; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

338 
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

339 
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

340 
in 
4141  341 
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

342 
err "Arguments (on lhs) must be variables" 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

343 
else if not (null lhs_dups) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

344 
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

345 
else if not (null rhs_extras) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

346 
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

347 
else if not (null rhs_extrasT) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

348 
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

349 
else if occs_const rhs then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

350 
err ("Constant to be defined occurs on rhs") 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

351 
else (c, ty) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

352 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

353 

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

354 

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

355 
(* check_defn *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

356 

3814  357 
fun err_in_defn sg name msg = 
358 
(writeln msg; error ("The error(s) above occurred in definition " ^ 

359 
quote (Sign.full_name sg name))); 

3767
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 
fun check_defn sign (axms, (name, tm)) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

363 
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

364 
[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

365 

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

366 
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

367 
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

368 

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

369 
val (c, ty) = dest_defn tm 
3814  370 
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

371 
val defns = clash_defns (c, ty) axms; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

373 
if not (null defns) then 
3814  374 
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

375 
"\nclashes with " ^ show_defns c defns) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

376 
else (name, tm) :: axms 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

377 
end; 
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 

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

380 
(* add_defs *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

381 

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

382 
fun ext_defns prep_axm raw_axms thy = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

383 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

384 
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

385 
val all_axms = all_axioms_of thy; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

386 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

387 
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

388 
add_axioms_i axms thy 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

389 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

390 

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

391 
val add_defs_i = ext_defns cert_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

392 
val add_defs = ext_defns read_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

393 

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

394 

3878  395 

3865  396 
(** additional theory data **) 
397 

4048  398 
fun init_data ds = foldl (op o) (I, map (ext_sg Sign.init_data) ds); 
3865  399 
val get_data = Sign.get_data o sign_of; 
400 
val put_data = ext_sg Sign.put_data; 

401 

402 

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

403 

4019  404 
(** merge theories **) (*exception ERROR*) 
405 

406 
fun merge_sign (sg, thy) = 

4627  407 
Sign.nontriv_merge (sg, sign_of thy) handle TERM (msg, _) => error msg; 
1526  408 

3878  409 
(*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

410 
fun prep_ext_merge thys = 
3996  411 
if null thys then 
4019  412 
error "Merge: no parent theories" 
3996  413 
else if exists (Sign.is_draft o sign_of) thys then 
4019  414 
error "Attempt to merge draft theories" 
3996  415 
else 
416 
let 

417 
val sign' = 

4019  418 
foldl merge_sign (sign_of (hd thys), tl thys) 
3996  419 
> Sign.prep_ext 
420 
> Sign.add_path "/"; 

3814  421 

4488  422 
val axioms' = Symtab.empty; 
4019  423 

3996  424 
fun eq_ora ((_, (_, s1: stamp)), (_, (_, s2))) = s1 = s2; 
425 
val oracles' = 

426 
Symtab.make (gen_distinct eq_ora 

427 
(flat (map (Symtab.dest o #oracles o rep_theory) thys))) 

428 
handle Symtab.DUPS names => err_dup_oras names; 

4019  429 

430 
val parents' = gen_distinct eq_thy thys; 

431 
val ancestors' = 

432 
gen_distinct eq_thy (parents' @ flat (map ancestors_of thys)); 

3996  433 
in 
4019  434 
make_thy sign' axioms' oracles' parents' ancestors' 
3996  435 
end; 
1526  436 

3885  437 
fun merge_theories name (thy1, thy2) = 
3967
edd5ff9371f8
sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents:
3956
diff
changeset

438 
prep_ext_merge [thy1, thy2] 
3885  439 
> add_name name; 
440 

441 

1526  442 
end; 
443 

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

444 
structure BasicTheory: BASIC_THEORY = Theory; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

445 
open BasicTheory; 