author  wenzelm 
Thu, 09 Oct 1997 14:55:05 +0200  
changeset 3814  b0dc68aa1b6a 
parent 3806  f371115aed37 
child 3865  0035d1f97096 
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 

14 
val rep_theory : theory > 

3814  15 
{sign: Sign.sg, 
16 
new_axioms: term Symtab.table, 

17 
oracles: ((Sign.sg * exn > term) * stamp) Symtab.table, 

18 
parents: theory list} 

1526  19 
val sign_of : theory > Sign.sg 
20 
val syn_of : theory > Syntax.syntax 

21 
val stamps_of_thy : theory > string ref list 

22 
val parents_of : theory > theory list 

23 
val subthy : theory * theory > bool 

24 
val eq_thy : theory * theory > bool 

25 
val proto_pure_thy : theory 

26 
val pure_thy : theory 

27 
val cpure_thy : theory 

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

28 
val cert_axm : Sign.sg > string * term > string * term 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

29 
val read_axm : Sign.sg > string * string > string * term 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

30 
val inferT_axm : Sign.sg > string * term > string * term 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

31 
val merge_theories : theory * theory > theory 
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 
3814  37 
val thmK : 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*) 
3806  40 
val add_classes : (xclass * xclass list) list > theory > theory 
41 
val add_classes_i : (xclass * class list) list > theory > theory 

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

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

43 
val add_classrel_i : (class * class) list > theory > theory 
3806  44 
val add_defsort : xsort > theory > theory 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

45 
val add_defsort_i : sort > theory > theory 
3806  46 
val add_types : (xstring * int * mixfix) list > theory > theory 
47 
val add_tyabbrs : (xstring * string list * string * mixfix) list 

1526  48 
> theory > theory 
3806  49 
val add_tyabbrs_i : (xstring * string list * typ * mixfix) list 
1526  50 
> theory > theory 
3806  51 
val add_arities : (xstring * xsort list * xsort) list > theory > theory 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

52 
val add_arities_i : (string * sort list * sort) list > theory > theory 
3806  53 
val add_consts : (xstring * string * mixfix) list > theory > theory 
54 
val add_consts_i : (xstring * typ * mixfix) list > theory > theory 

55 
val add_syntax : (xstring * string * mixfix) list > theory > theory 

56 
val add_syntax_i : (xstring * typ * mixfix) list > theory > theory 

57 
val add_modesyntax : string * bool > (xstring * string * mixfix) list > theory > theory 

58 
val add_modesyntax_i : string * bool > (xstring * typ * mixfix) list > theory > theory 

1539  59 
val add_trfuns : 
1526  60 
(string * (Syntax.ast list > Syntax.ast)) list * 
61 
(string * (term list > term)) list * 

62 
(string * (term list > term)) list * 

63 
(string * (Syntax.ast list > Syntax.ast)) list > theory > theory 

2385  64 
val add_trfunsT : 
65 
(string * (typ > term list > term)) list > theory > theory 

2693  66 
val add_tokentrfuns: 
67 
(string * string * (string > string * int)) list > theory > theory 

1526  68 
val add_trrules : (string * string)Syntax.trrule list > theory > theory 
1539  69 
val add_trrules_i : Syntax.ast Syntax.trrule list > theory > theory 
3806  70 
val add_axioms : (xstring * string) list > theory > theory 
71 
val add_axioms_i : (xstring * term) list > theory > theory 

3814  72 
val add_oracle : string * (Sign.sg * exn > term) > theory > theory 
3806  73 
val add_defs : (xstring * string) list > theory > theory 
74 
val add_defs_i : (xstring * term) list > theory > theory 

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

75 
val add_path : string > theory > theory 
3814  76 
val add_space : string * string list > theory > theory 
3767
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

77 
val add_name : string > theory > theory 
1526  78 
val merge_thy_list : bool > theory list > theory 
79 
end; 

80 

81 

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

82 
structure Theory: THEORY = 
1526  83 
struct 
2206  84 

85 
(** datatype theory **) 

1526  86 

87 
datatype theory = 

88 
Theory of { 

89 
sign: Sign.sg, 

90 
new_axioms: term Symtab.table, 

3814  91 
oracles: ((Sign.sg * exn > term) * stamp) Symtab.table, 
1526  92 
parents: theory list}; 
93 

94 
fun rep_theory (Theory args) = args; 

95 

96 
(*errors involving theories*) 

97 
exception THEORY of string * theory list; 

98 

99 

100 
val sign_of = #sign o rep_theory; 

101 
val syn_of = #syn o Sign.rep_sg o sign_of; 

102 

103 
(*stamps associated with a theory*) 

104 
val stamps_of_thy = #stamps o Sign.rep_sg o sign_of; 

105 

106 
(*return the immediate ancestors*) 

107 
val parents_of = #parents o rep_theory; 

108 

109 

110 
(*compare theories*) 

111 
val subthy = Sign.subsig o pairself sign_of; 

112 
val eq_thy = Sign.eq_sg o pairself sign_of; 

113 

114 

115 
(* the Pure theories *) 

116 

3814  117 
fun make_thy sign parents = 
118 
Theory {sign = sign, new_axioms = Symtab.null, 

119 
oracles = Symtab.null, parents = parents}; 

1526  120 

3814  121 
val proto_pure_thy = make_thy Sign.proto_pure []; 
122 
val pure_thy = make_thy Sign.pure [proto_pure_thy]; 

123 
val cpure_thy = make_thy Sign.cpure [proto_pure_thy]; 

1526  124 

125 

126 

127 
(** extend theory **) 

128 

3814  129 
(*name space kinds*) 
130 
val thmK = "thm"; 

131 
val oracleK = "oracle"; 

132 

133 

134 
(* extend logical part of a theory *) 

135 

1526  136 
fun err_dup_axms names = 
137 
error ("Duplicate axiom name(s) " ^ commas_quote names); 

138 

3814  139 
fun err_dup_oras names = 
140 
error ("Duplicate oracles " ^ commas_quote names); 

141 

142 

143 
fun ext_thy thy sign' new_axms new_oras = 

1526  144 
let 
3814  145 
val Theory {sign, new_axioms, oracles, parents} = thy; 
1526  146 
val draft = Sign.is_draft sign; 
3814  147 
val new_axioms' = 
1526  148 
Symtab.extend_new (if draft then new_axioms else Symtab.null, new_axms) 
149 
handle Symtab.DUPS names => err_dup_axms names; 

3814  150 
val oracles' = 
151 
Symtab.extend_new (oracles, new_oras) 

152 
handle Symtab.DUPS names => err_dup_oras names; 

153 
val parents' = if draft then parents else [thy]; 

1526  154 
in 
3814  155 
Theory {sign = sign', new_axioms = new_axioms', 
156 
oracles = oracles', parents = parents'} 

1526  157 
end; 
158 

159 

160 
(* extend signature of a theory *) 

161 

162 
fun ext_sg extfun decls (thy as Theory {sign, ...}) = 

3814  163 
ext_thy thy (extfun decls sign) [] []; 
1526  164 

2206  165 
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

166 
val add_classes_i = ext_sg Sign.add_classes_i; 
2206  167 
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

168 
val add_classrel_i = ext_sg Sign.add_classrel_i; 
2206  169 
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

170 
val add_defsort_i = ext_sg Sign.add_defsort_i; 
2206  171 
val add_types = ext_sg Sign.add_types; 
172 
val add_tyabbrs = ext_sg Sign.add_tyabbrs; 

173 
val add_tyabbrs_i = ext_sg Sign.add_tyabbrs_i; 

174 
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

175 
val add_arities_i = ext_sg Sign.add_arities_i; 
2206  176 
val add_consts = ext_sg Sign.add_consts; 
177 
val add_consts_i = ext_sg Sign.add_consts_i; 

178 
val add_syntax = ext_sg Sign.add_syntax; 

179 
val add_syntax_i = ext_sg Sign.add_syntax_i; 

180 
val add_modesyntax = curry (ext_sg Sign.add_modesyntax); 

181 
val add_modesyntax_i = curry (ext_sg Sign.add_modesyntax_i); 

182 
val add_trfuns = ext_sg Sign.add_trfuns; 

2385  183 
val add_trfunsT = ext_sg Sign.add_trfunsT; 
2693  184 
val add_tokentrfuns = ext_sg Sign.add_tokentrfuns; 
2206  185 
val add_trrules = ext_sg Sign.add_trrules; 
186 
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

187 
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

188 
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

189 
val add_name = ext_sg Sign.add_name; 
1526  190 

191 

3814  192 

193 
(** add axioms **) 

194 

1526  195 
(* prepare axioms *) 
196 

197 
fun err_in_axm name = 

198 
error ("The error(s) above occurred in axiom " ^ quote name); 

199 

200 
fun no_vars tm = 

201 
if null (term_vars tm) andalso null (term_tvars tm) then tm 

202 
else error "Illegal schematic variable(s) in term"; 

203 

204 
fun cert_axm sg (name, raw_tm) = 

205 
let 

206 
val (t, T, _) = Sign.certify_term sg raw_tm 

2979  207 
handle TYPE (msg, _, _) => error msg 
1526  208 
 TERM (msg, _) => error msg; 
209 
in 

210 
assert (T = propT) "Term not of type prop"; 

211 
(name, no_vars t) 

212 
end 

213 
handle ERROR => err_in_axm name; 

214 

215 
(*Some duplication of code with read_def_cterm*) 

216 
fun read_axm sg (name, str) = 

3814  217 
let 
218 
val ts = Syntax.read (#syn (Sign.rep_sg sg)) propT str; 

219 
val (_, t, _) = 

220 
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

221 
in cert_axm sg (name,t) end 
ae390b599213
Improved error handling: if there are syntax or typechecking
paulson
parents:
1539
diff
changeset

222 
handle ERROR => err_in_axm name; 
1526  223 

224 
fun inferT_axm sg (name, pre_tm) = 

3814  225 
let 
226 
val (_, t, _) = 

227 
Sign.infer_types sg (K None) (K None) [] true ([pre_tm], propT); 

228 
in (name, no_vars t) end 

1526  229 
handle ERROR => err_in_axm name; 
230 

231 

232 
(* extend axioms of a theory *) 

233 

3814  234 
fun ext_axms prep_axm raw_axms (thy as Theory {sign, ...}) = 
1526  235 
let 
3814  236 
val raw_axms' = map (apfst (Sign.full_name sign)) raw_axms; 
237 
val axioms = 

238 
map (apsnd (Term.compress_term o Logic.varify) o prep_axm sign) raw_axms'; 

239 
val sign' = Sign.add_space (thmK, map fst axioms) sign; 

1526  240 
in 
3814  241 
ext_thy thy sign' axioms [] 
1526  242 
end; 
243 

244 
val add_axioms = ext_axms read_axm; 

245 
val add_axioms_i = ext_axms cert_axm; 

246 

247 

3814  248 
(* add oracle **) 
249 

250 
fun add_oracle (raw_name, oracle) (thy as Theory {sign, ...}) = 

251 
let 

252 
val name = Sign.full_name sign raw_name; 

253 
val sign' = Sign.add_space (oracleK, [name]) sign; 

254 
in 

255 
ext_thy thy sign' [] [(name, (oracle, stamp ()))] 

256 
end; 

257 

258 

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

259 

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

260 
(** add constant definitions **) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

261 

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

262 
(* all_axioms_of *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

263 

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

264 
(*results may contain duplicates!*) 
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 
fun ancestry_of thy = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

267 
thy :: List.concat (map ancestry_of (parents_of thy)); 
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 
val all_axioms_of = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

270 
List.concat o map (Symtab.dest o #new_axioms o rep_theory) o ancestry_of; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

271 

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

272 

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

273 
(* clash_types, clash_consts *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

274 

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

275 
(*check if types have common instance (ignoring sorts)*) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

276 

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

277 
fun clash_types ty1 ty2 = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

279 
val ty1' = Type.varifyT ty1; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

280 
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

281 
in 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

282 
Type.raw_unify (ty1', ty2') 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

283 
end; 
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_consts (c1, ty1) (c2, ty2) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

286 
c1 = c2 andalso clash_types ty1 ty2; 
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 

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

289 
(* clash_defns *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

290 

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

291 
fun clash_defn c_ty (name, tm) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

292 
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

293 
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

294 
end handle TERM _ => None; 
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 clash_defns c_ty axms = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

297 
distinct (mapfilter (clash_defn c_ty) axms); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

298 

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

303 
let 
3787
67571f49ebe3
new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents:
3767
diff
changeset

304 
fun err msg = raise TERM (msg, [tm]); 
3767
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 
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

307 
handle TERM _ => err "Not a metaequality (==)"; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

308 
val (head, args) = strip_comb lhs; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

309 
val (c, ty) = dest_Const head 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

310 
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

311 

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

312 
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

313 
 occs_const (Abs (_, _, t)) = occs_const t 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

314 
 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

315 
 occs_const _ = false; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

316 

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

317 
val show_frees = commas_quote o map (fst o dest_Free); 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

318 
val show_tfrees = commas_quote o map fst; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

319 

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

320 
val lhs_dups = duplicates args; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

321 
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

322 
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

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

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

325 
err "Arguments (on lhs) must be variables" 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

327 
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

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

329 
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

330 
else if not (null rhs_extrasT) then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

331 
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

332 
else if occs_const rhs then 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

333 
err ("Constant to be defined occurs on rhs") 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

334 
else (c, ty) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

335 
end; 
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 

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

338 
(* check_defn *) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

339 

3814  340 
fun err_in_defn sg name msg = 
341 
(writeln msg; error ("The error(s) above occurred in definition " ^ 

342 
quote (Sign.full_name sg name))); 

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

343 

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

344 
fun check_defn sign (axms, (name, tm)) = 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

345 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

346 
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

347 
[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

348 

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

349 
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

350 
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

351 

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

352 
val (c, ty) = dest_defn tm 
3814  353 
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

354 
val defns = clash_defns (c, ty) axms; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

356 
if not (null defns) then 
3814  357 
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

358 
"\nclashes with " ^ show_defns c defns) 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

359 
else (name, tm) :: axms 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

360 
end; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

361 

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

366 
let 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

367 
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

368 
val all_axms = all_axioms_of thy; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

370 
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

371 
add_axioms_i axms thy 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

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

373 

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

374 
val add_defs_i = ext_defns cert_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

375 
val add_defs = ext_defns read_axm; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

376 

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

377 

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

378 

1526  379 
(** merge theories **) 
380 

381 
fun merge_thy_list mk_draft thys = 

382 
let 

383 
fun is_union thy = forall (fn t => subthy (t, thy)) thys; 

384 
val is_draft = Sign.is_draft o sign_of; 

385 

386 
fun add_sign (sg, Theory {sign, ...}) = 

387 
Sign.merge (sg, sign) handle TERM (msg, _) => error msg; 

3814  388 

389 
fun oracles_of (Theory {oracles, ...}) = Symtab.dest oracles; 

390 
fun eq_ora ((_, (_, s1: stamp)), (_, (_, s2))) = s1 = s2; 

391 
val all_oracles = 

392 
Symtab.make (gen_distinct eq_ora (flat (map oracles_of thys))) 

393 
handle Symtab.DUPS names => err_dup_oras names; 

1526  394 
in 
3814  395 
(case (find_first is_union thys, exists is_draft thys) of 
1526  396 
(Some thy, _) => thy 
397 
 (None, true) => raise THEORY ("Illegal merge of draft theories", thys) 

398 
 (None, false) => Theory { 

399 
sign = 

400 
(if mk_draft then Sign.make_draft else I) 

401 
(foldl add_sign (Sign.proto_pure, thys)), 

402 
new_axioms = Symtab.null, 

3814  403 
oracles = all_oracles, 
404 
parents = thys}) 

1526  405 
end; 
406 

407 
fun merge_theories (thy1, thy2) = merge_thy_list false [thy1, thy2]; 

408 

409 

410 
end; 

411 

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

412 
structure BasicTheory: BASIC_THEORY = Theory; 
e2bb53d8dd26
moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents:
2979
diff
changeset

413 
open BasicTheory; 