author | wenzelm |
Tue, 12 Jan 1999 13:54:51 +0100 | |
changeset 6092 | d9db67970c73 |
parent 5890 | 92ba560f39ab |
child 6358 | 92dbe243555f |
permissions | -rw-r--r-- |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1 |
(* Title: HOL/Tools/record_package.ML |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
2 |
ID: $Id$ |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
3 |
Author: Wolfgang Naraschewski and Markus Wenzel, TU Muenchen |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
4 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
5 |
Extensible records with structural subtyping in HOL. |
5698 | 6 |
*) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
7 |
|
5698 | 8 |
signature BASIC_RECORD_PACKAGE = |
9 |
sig |
|
10 |
val record_split_tac: int -> tactic |
|
5713 | 11 |
val record_split_name: string |
5698 | 12 |
val record_split_wrapper: string * wrapper |
13 |
end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
14 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
15 |
signature RECORD_PACKAGE = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
16 |
sig |
5698 | 17 |
include BASIC_RECORD_PACKAGE |
18 |
val quiet_mode: bool ref |
|
4890 | 19 |
val moreS: sort |
20 |
val mk_fieldT: (string * typ) * typ -> typ |
|
21 |
val dest_fieldT: typ -> (string * typ) * typ |
|
22 |
val mk_field: (string * term) * term -> term |
|
23 |
val mk_fst: term -> term |
|
24 |
val mk_snd: term -> term |
|
25 |
val mk_recordT: (string * typ) list * typ -> typ |
|
26 |
val dest_recordT: typ -> (string * typ) list * typ |
|
27 |
val mk_record: (string * term) list * term -> term |
|
28 |
val mk_sel: term -> string -> term |
|
29 |
val mk_update: term -> string * term -> term |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
30 |
val print_records: theory -> unit |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
31 |
val add_record: (string list * bstring) -> string option |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
32 |
-> (bstring * string) list -> theory -> theory |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
33 |
val add_record_i: (string list * bstring) -> (typ list * string) option |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
34 |
-> (bstring * typ) list -> theory -> theory |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
35 |
val setup: (theory -> theory) list |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
36 |
end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
37 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
38 |
structure RecordPackage: RECORD_PACKAGE = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
39 |
struct |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
40 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
41 |
|
4894 | 42 |
(*** utilities ***) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
43 |
|
5698 | 44 |
(* messages *) |
45 |
||
46 |
val quiet_mode = ref false; |
|
47 |
fun message s = if ! quiet_mode then () else writeln s; |
|
48 |
||
49 |
||
5707 | 50 |
(* attributes etc. *) (* FIXME move to Provers *) |
51 |
||
52 |
fun add_iffs_global (thy, th) = |
|
53 |
let |
|
54 |
val ss = Simplifier.simpset_ref_of thy; |
|
55 |
val cs = Classical.claset_ref_of thy; |
|
6092 | 56 |
val (cs', ss') = (! cs, ! ss) addIffs [th]; |
5707 | 57 |
in ss := ss'; cs := cs'; (thy, th) end; |
58 |
||
59 |
fun add_wrapper wrapper thy = |
|
5713 | 60 |
let val r = Classical.claset_ref_of thy |
5707 | 61 |
in r := ! r addSWrapper wrapper; thy end; |
62 |
||
63 |
||
4894 | 64 |
(* definitions and equations *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
65 |
|
5698 | 66 |
infix 0 :== ===; |
4894 | 67 |
|
68 |
val (op :==) = Logic.mk_defpair; |
|
69 |
val (op ===) = HOLogic.mk_Trueprop o HOLogic.mk_eq; |
|
70 |
||
6092 | 71 |
fun get_defs thy specs = map (PureThy.get_thm thy o fst) specs; |
4894 | 72 |
|
73 |
||
74 |
(* proof by simplification *) |
|
4890 | 75 |
|
5698 | 76 |
fun prove_simp thy tacs simps = |
4894 | 77 |
let |
4895 | 78 |
val sign = Theory.sign_of thy; |
6092 | 79 |
val ss = Simplifier.addsimps (HOL_basic_ss, simps); |
4895 | 80 |
|
81 |
fun prove goal = |
|
6092 | 82 |
Goals.prove_goalw_cterm [] (Thm.cterm_of sign goal) |
83 |
(K (tacs @ [ALLGOALS (Simplifier.simp_tac ss)])) |
|
84 |
handle ERROR => error ("The error(s) above occurred while trying to prove " |
|
85 |
^ quote (Sign.string_of_term sign goal)); |
|
4894 | 86 |
in prove end; |
87 |
||
88 |
||
89 |
||
90 |
(*** syntax operations ***) |
|
91 |
||
92 |
(** name components **) |
|
93 |
||
94 |
val moreN = "more"; |
|
95 |
val schemeN = "_scheme"; |
|
96 |
val fieldN = "_field"; |
|
5698 | 97 |
val raw_fieldN = "_raw_field"; |
4894 | 98 |
val field_typeN = "_field_type"; |
5698 | 99 |
val fstN = "_val"; |
100 |
val sndN = "_more"; |
|
4894 | 101 |
val updateN = "_update"; |
102 |
val makeN = "make"; |
|
103 |
val make_schemeN = "make_scheme"; |
|
4890 | 104 |
|
5698 | 105 |
(*see datatype package*) |
106 |
val caseN = "_case"; |
|
107 |
||
108 |
||
109 |
||
110 |
(** generic operations **) |
|
111 |
||
5713 | 112 |
(* adhoc priming of vars *) |
113 |
||
114 |
fun prime (Free (x, T)) = Free (x ^ "'", T) |
|
115 |
| prime t = raise TERM ("prime: no free variable", [t]); |
|
116 |
||
117 |
||
118 |
(* product case *) |
|
119 |
||
5698 | 120 |
fun fst_fn T U = Abs ("x", T, Abs ("y", U, Bound 1)); |
121 |
fun snd_fn T U = Abs ("x", T, Abs ("y", U, Bound 0)); |
|
122 |
||
123 |
fun mk_prod_case name f p = |
|
124 |
let |
|
125 |
val fT as Type ("fun", [A, Type ("fun", [B, C])]) = fastype_of f; |
|
126 |
val pT = fastype_of p; |
|
127 |
in Const (suffix caseN name, fT --> pT --> C) $ f $ p end; |
|
128 |
||
4890 | 129 |
|
130 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
131 |
(** tuple operations **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
132 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
133 |
(* more type class *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
134 |
|
5210 | 135 |
val moreS = ["Record.more"]; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
136 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
137 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
138 |
(* types *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
139 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
140 |
fun mk_fieldT ((c, T), U) = Type (suffix field_typeN c, [T, U]); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
141 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
142 |
fun dest_fieldT (typ as Type (c_field_type, [T, U])) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
143 |
(case try (unsuffix field_typeN) c_field_type of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
144 |
None => raise TYPE ("dest_fieldT", [typ], []) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
145 |
| Some c => ((c, T), U)) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
146 |
| dest_fieldT typ = raise TYPE ("dest_fieldT", [typ], []); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
147 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
148 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
149 |
(* constructors *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
150 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
151 |
fun mk_fieldC U (c, T) = (suffix fieldN c, T --> U --> mk_fieldT ((c, T), U)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
152 |
|
5698 | 153 |
fun gen_mk_field sfx ((c, t), u) = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
154 |
let val T = fastype_of t and U = fastype_of u |
5698 | 155 |
in Const (suffix sfx c, [T, U] ---> mk_fieldT ((c, T), U)) $ t $ u end; |
156 |
||
157 |
val mk_field = gen_mk_field fieldN; |
|
158 |
val mk_raw_field = gen_mk_field raw_fieldN; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
159 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
160 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
161 |
(* destructors *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
162 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
163 |
fun mk_fstC U (c, T) = (suffix fstN c, mk_fieldT ((c, T), U) --> T); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
164 |
fun mk_sndC U (c, T) = (suffix sndN c, mk_fieldT ((c, T), U) --> U); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
165 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
166 |
fun dest_field fst_or_snd p = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
167 |
let |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
168 |
val pT = fastype_of p; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
169 |
val ((c, T), U) = dest_fieldT pT; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
170 |
val (destN, destT) = if fst_or_snd then (fstN, T) else (sndN, U); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
171 |
in Const (suffix destN c, pT --> destT) $ p end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
172 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
173 |
val mk_fst = dest_field true; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
174 |
val mk_snd = dest_field false; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
175 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
176 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
177 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
178 |
(** record operations **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
179 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
180 |
(* types *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
181 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
182 |
val mk_recordT = foldr mk_fieldT; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
183 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
184 |
fun dest_recordT T = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
185 |
(case try dest_fieldT T of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
186 |
None => ([], T) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
187 |
| Some (c_T, U) => apfst (cons c_T) (dest_recordT U)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
188 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
189 |
fun find_fieldT c rT = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
190 |
(case assoc (fst (dest_recordT rT), c) of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
191 |
None => raise TYPE ("find_field: " ^ c, [rT], []) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
192 |
| Some T => T); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
193 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
194 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
195 |
(* constructors *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
196 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
197 |
val mk_record = foldr mk_field; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
198 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
199 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
200 |
(* selectors *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
201 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
202 |
fun mk_selC rT (c, T) = (c, rT --> T); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
203 |
|
4890 | 204 |
fun mk_sel r c = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
205 |
let val rT = fastype_of r |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
206 |
in Const (mk_selC rT (c, find_fieldT c rT)) $ r end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
207 |
|
4894 | 208 |
val mk_moreC = mk_selC; |
209 |
||
210 |
fun mk_more r c = |
|
211 |
let val rT = fastype_of r |
|
212 |
in Const (mk_moreC rT (c, snd (dest_recordT rT))) $ r end; |
|
213 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
214 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
215 |
(* updates *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
216 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
217 |
fun mk_updateC rT (c, T) = (suffix updateN c, T --> rT --> rT); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
218 |
|
4890 | 219 |
fun mk_update r (c, x) = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
220 |
let val rT = fastype_of r |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
221 |
in Const (mk_updateC rT (c, find_fieldT c rT)) $ x $ r end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
222 |
|
5197 | 223 |
val mk_more_updateC = mk_updateC; |
224 |
||
225 |
fun mk_more_update r (c, x) = |
|
226 |
let val rT = fastype_of r |
|
227 |
in Const (mk_more_updateC rT (c, snd (dest_recordT rT))) $ x $ r end; |
|
228 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
229 |
|
4890 | 230 |
(* make *) |
231 |
||
232 |
fun mk_makeC rT (c, Ts) = (c, Ts ---> rT); |
|
233 |
||
234 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
235 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
236 |
(** concrete syntax for records **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
237 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
238 |
(* parse translations *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
239 |
|
5197 | 240 |
fun gen_field_tr mark sfx (t as Const (c, _) $ Free (name, _) $ arg) = |
241 |
if c = mark then Syntax.const (suffix sfx name) $ arg |
|
242 |
else raise TERM ("gen_field_tr: " ^ mark, [t]) |
|
243 |
| gen_field_tr mark _ t = raise TERM ("gen_field_tr: " ^ mark, [t]); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
244 |
|
5197 | 245 |
fun gen_fields_tr sep mark sfx (tm as Const (c, _) $ t $ u) = |
246 |
if c = sep then gen_field_tr mark sfx t :: gen_fields_tr sep mark sfx u |
|
5201 | 247 |
else [gen_field_tr mark sfx tm] |
248 |
| gen_fields_tr _ mark sfx tm = [gen_field_tr mark sfx tm]; |
|
5197 | 249 |
|
250 |
fun gen_record_tr sep mark sfx unit [t] = foldr (op $) (gen_fields_tr sep mark sfx t, unit) |
|
5201 | 251 |
| gen_record_tr _ _ _ _ ts = raise TERM ("gen_record_tr", ts); |
5197 | 252 |
|
253 |
fun gen_record_scheme_tr sep mark sfx [t, more] = foldr (op $) (gen_fields_tr sep mark sfx t, more) |
|
5201 | 254 |
| gen_record_scheme_tr _ _ _ ts = raise TERM ("gen_record_scheme_tr", ts); |
5197 | 255 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
256 |
|
5197 | 257 |
val record_type_tr = gen_record_tr "_field_types" "_field_type" field_typeN (Syntax.const "unit"); |
258 |
val record_type_scheme_tr = gen_record_scheme_tr "_field_types" "_field_type" field_typeN; |
|
259 |
||
260 |
val record_tr = gen_record_tr "_fields" "_field" fieldN HOLogic.unit; |
|
261 |
val record_scheme_tr = gen_record_scheme_tr "_fields" "_field" fieldN; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
262 |
|
5197 | 263 |
fun record_update_tr [t, u] = |
264 |
foldr (op $) (rev (gen_fields_tr "_updates" "_update" updateN u), t) |
|
265 |
| record_update_tr ts = raise TERM ("record_update_tr", ts); |
|
266 |
||
267 |
||
268 |
val parse_translation = |
|
269 |
[("_record_type", record_type_tr), |
|
270 |
("_record_type_scheme", record_type_scheme_tr), |
|
271 |
("_record", record_tr), |
|
272 |
("_record_scheme", record_scheme_tr), |
|
273 |
("_record_update", record_update_tr)]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
274 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
275 |
|
4890 | 276 |
(* print translations *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
277 |
|
5197 | 278 |
fun gen_fields_tr' mark sfx (tm as Const (name_field, _) $ t $ u) = |
279 |
(case try (unsuffix sfx) name_field of |
|
280 |
Some name => |
|
281 |
apfst (cons (Syntax.const mark $ Syntax.free name $ t)) (gen_fields_tr' mark sfx u) |
|
282 |
| None => ([], tm)) |
|
283 |
| gen_fields_tr' _ _ tm = ([], tm); |
|
284 |
||
285 |
fun gen_record_tr' sep mark sfx is_unit record record_scheme tm = |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
286 |
let |
5197 | 287 |
val (ts, u) = gen_fields_tr' mark sfx tm; |
288 |
val t' = foldr1 (fn (v, w) => Syntax.const sep $ v $ w) ts; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
289 |
in |
5197 | 290 |
if is_unit u then Syntax.const record $ t' |
291 |
else Syntax.const record_scheme $ t' $ u |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
292 |
end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
293 |
|
5197 | 294 |
|
295 |
val record_type_tr' = |
|
296 |
gen_record_tr' "_field_types" "_field_type" field_typeN |
|
297 |
(fn Const ("unit", _) => true | _ => false) "_record_type" "_record_type_scheme"; |
|
298 |
||
299 |
val record_tr' = |
|
300 |
gen_record_tr' "_fields" "_field" fieldN HOLogic.is_unit "_record" "_record_scheme"; |
|
301 |
||
302 |
fun record_update_tr' tm = |
|
303 |
let val (ts, u) = gen_fields_tr' "_update" updateN tm in |
|
304 |
Syntax.const "_record_update" $ u $ |
|
305 |
foldr1 (fn (v, w) => Syntax.const "_updates" $ v $ w) (rev ts) |
|
306 |
end; |
|
307 |
||
308 |
||
5201 | 309 |
fun gen_field_tr' sfx tr' name = |
310 |
let val name_sfx = suffix sfx name |
|
311 |
in (name_sfx, fn [t, u] => tr' (Syntax.const name_sfx $ t $ u) | _ => raise Match) end; |
|
312 |
||
5197 | 313 |
fun print_translation names = |
314 |
map (gen_field_tr' field_typeN record_type_tr') names @ |
|
315 |
map (gen_field_tr' fieldN record_tr') names @ |
|
316 |
map (gen_field_tr' updateN record_update_tr') names; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
317 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
318 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
319 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
320 |
(*** extend theory by record definition ***) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
321 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
322 |
(** record info **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
323 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
324 |
(* type record_info and parent_info *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
325 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
326 |
type record_info = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
327 |
{args: (string * sort) list, |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
328 |
parent: (typ list * string) option, |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
329 |
fields: (string * typ) list, |
6092 | 330 |
simps: thm list}; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
331 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
332 |
type parent_info = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
333 |
{name: string, |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
334 |
fields: (string * typ) list, |
6092 | 335 |
simps: thm list}; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
336 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
337 |
|
5052 | 338 |
(* data kind 'HOL/records' *) |
5001 | 339 |
|
5006 | 340 |
structure RecordsArgs = |
341 |
struct |
|
342 |
val name = "HOL/records"; |
|
5698 | 343 |
type T = |
5707 | 344 |
record_info Symtab.table * (*records*) |
345 |
(thm Symtab.table * Simplifier.simpset); (*field split rules*) |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
346 |
|
5698 | 347 |
val empty = (Symtab.empty, (Symtab.empty, HOL_basic_ss)); |
5006 | 348 |
val prep_ext = I; |
5698 | 349 |
fun merge ((recs1, (sps1, ss1)), (recs2, (sps2, ss2))) = |
350 |
(Symtab.merge (K true) (recs1, recs2), |
|
351 |
(Symtab.merge (K true) (sps1, sps2), Simplifier.merge_ss (ss1, ss2))); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
352 |
|
5698 | 353 |
fun print sg (recs, _) = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
354 |
let |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
355 |
val prt_typ = Sign.pretty_typ sg; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
356 |
val ext_const = Sign.cond_extern sg Sign.constK; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
357 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
358 |
fun pretty_parent None = [] |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
359 |
| pretty_parent (Some (Ts, name)) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
360 |
[Pretty.block [prt_typ (Type (name, Ts)), Pretty.str " +"]]; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
361 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
362 |
fun pretty_field (c, T) = Pretty.block |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
363 |
[Pretty.str (ext_const c), Pretty.str " ::", Pretty.brk 1, Pretty.quote (prt_typ T)]; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
364 |
|
4895 | 365 |
fun pretty_record (name, {args, parent, fields, simps = _}) = Pretty.block (Pretty.fbreaks |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
366 |
(Pretty.block [prt_typ (Type (name, map TFree args)), Pretty.str " = "] :: |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
367 |
pretty_parent parent @ map pretty_field fields)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
368 |
in |
5698 | 369 |
seq (Pretty.writeln o pretty_record) (Symtab.dest recs) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
370 |
end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
371 |
end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
372 |
|
5006 | 373 |
structure RecordsData = TheoryDataFun(RecordsArgs); |
374 |
val print_records = RecordsData.print; |
|
375 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
376 |
|
5698 | 377 |
(* get and put data *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
378 |
|
5698 | 379 |
fun get_record thy name = Symtab.lookup (#1 (RecordsData.get thy), name); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
380 |
|
4890 | 381 |
fun put_record name info thy = |
5698 | 382 |
let val (tab, sp) = RecordsData.get thy |
383 |
in RecordsData.put (Symtab.update ((name, info), tab), sp) thy end; |
|
384 |
||
385 |
fun add_record_splits splits thy = |
|
386 |
let |
|
387 |
val (tab, (sps, ss)) = RecordsData.get thy; |
|
388 |
val simps = map #2 splits; |
|
389 |
in RecordsData.put (tab, (Symtab.extend (sps, splits), Simplifier.addsimps (ss, simps))) thy end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
390 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
391 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
392 |
(* parent records *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
393 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
394 |
fun inst_record thy (types, name) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
395 |
let |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
396 |
val sign = Theory.sign_of thy; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
397 |
fun err msg = error (msg ^ " parent record " ^ quote name); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
398 |
|
4895 | 399 |
val {args, parent, fields, simps} = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
400 |
(case get_record thy name of Some info => info | None => err "Unknown"); |
4895 | 401 |
val _ = if length types <> length args then err "Bad number of arguments for" else (); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
402 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
403 |
fun bad_inst ((x, S), T) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
404 |
if Sign.of_sort sign (T, S) then None else Some x |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
405 |
val bads = mapfilter bad_inst (args ~~ types); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
406 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
407 |
val inst = map fst args ~~ types; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
408 |
val subst = Term.map_type_tfree (fn (x, _) => the (assoc (inst, x))); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
409 |
in |
4895 | 410 |
if not (null bads) then |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
411 |
err ("Ill-sorted instantiation of " ^ commas bads ^ " in") |
4895 | 412 |
else (apsome (apfst (map subst)) parent, map (apsnd subst) fields, simps) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
413 |
end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
414 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
415 |
fun add_parents thy (None, parents) = parents |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
416 |
| add_parents thy (Some (types, name), parents) = |
4895 | 417 |
let val (pparent, pfields, psimps) = inst_record thy (types, name) |
418 |
in add_parents thy (pparent, {name = name, fields = pfields, simps = psimps} :: parents) end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
419 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
420 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
421 |
|
5698 | 422 |
(** record field splitting **) |
423 |
||
424 |
fun record_split_tac i st = |
|
425 |
let |
|
426 |
val (_, (sps, ss)) = RecordsData.get_sg (Thm.sign_of_thm st); |
|
427 |
||
428 |
fun is_fieldT (_, Type (a, [_, _])) = is_some (Symtab.lookup (sps, a)) |
|
429 |
| is_fieldT _ = false; |
|
430 |
val params = Logic.strip_params (Library.nth_elem (i - 1, Thm.prems_of st)); |
|
431 |
in |
|
432 |
if exists is_fieldT params then Simplifier.full_simp_tac ss i st |
|
433 |
else Seq.empty |
|
434 |
end handle Library.LIST _ => Seq.empty; |
|
435 |
||
5707 | 436 |
val record_split_name = "record_split_tac"; |
437 |
val record_split_wrapper = (record_split_name, fn tac => record_split_tac ORELSE' tac); |
|
5698 | 438 |
|
439 |
||
440 |
||
4890 | 441 |
(** internal theory extenders **) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
442 |
|
5698 | 443 |
(* field_type_defs *) |
444 |
||
5713 | 445 |
fun field_type_def ((thy, simps), (name, tname, vs, T, U)) = |
5698 | 446 |
let |
447 |
val full = Sign.full_name (sign_of thy); |
|
5713 | 448 |
val (thy', {simps = simps', ...}) = |
5698 | 449 |
thy |
450 |
|> setmp DatatypePackage.quiet_mode true |
|
451 |
(DatatypePackage.add_datatype_i true [tname] |
|
452 |
[(vs, tname, Syntax.NoSyn, [(name, [T, U], Syntax.NoSyn)])]); |
|
453 |
val thy'' = |
|
454 |
thy' |
|
455 |
|> setmp AxClass.quiet_mode true |
|
456 |
(AxClass.add_inst_arity_i (full tname, [HOLogic.termS, moreS], moreS) [] [] None); |
|
5713 | 457 |
in (thy'', simps' @ simps) end; |
5698 | 458 |
|
5713 | 459 |
fun field_type_defs args thy = foldl field_type_def ((thy, []), args); |
5698 | 460 |
|
461 |
||
4894 | 462 |
(* field_definitions *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
463 |
|
4894 | 464 |
fun field_definitions fields names zeta moreT more vars named_vars thy = |
4890 | 465 |
let |
5698 | 466 |
val sign = Theory.sign_of thy; |
4890 | 467 |
val base = Sign.base_name; |
5698 | 468 |
val full_path = Sign.full_name_path sign; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
469 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
470 |
|
4890 | 471 |
(* prepare declarations and definitions *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
472 |
|
4890 | 473 |
(*field types*) |
474 |
fun mk_fieldT_spec c = |
|
5698 | 475 |
(suffix raw_fieldN c, suffix field_typeN c, |
476 |
["'a", zeta], TFree ("'a", HOLogic.termS), moreT); |
|
4890 | 477 |
val fieldT_specs = map (mk_fieldT_spec o base) names; |
478 |
||
5698 | 479 |
(*field constructors*) |
4890 | 480 |
val field_decls = map (mk_fieldC moreT) fields; |
481 |
||
482 |
fun mk_field_spec (c, v) = |
|
5698 | 483 |
mk_field ((c, v), more) :== mk_raw_field ((c, v), more); |
4894 | 484 |
val field_specs = map mk_field_spec named_vars; |
4890 | 485 |
|
486 |
(*field destructors*) |
|
5698 | 487 |
val dest_decls = map (mk_fstC moreT) fields @ map (mk_sndC moreT) fields; |
488 |
||
489 |
fun mk_dest_spec dest f (c, T) = |
|
490 |
let val p = Free ("p", mk_fieldT ((c, T), moreT)); |
|
491 |
in dest p :== mk_prod_case (suffix field_typeN c) (f T moreT) p end; |
|
4890 | 492 |
val dest_specs = |
5698 | 493 |
map (mk_dest_spec mk_fst fst_fn) fields @ |
494 |
map (mk_dest_spec mk_snd snd_fn) fields; |
|
4890 | 495 |
|
496 |
||
497 |
(* prepare theorems *) |
|
4894 | 498 |
|
5713 | 499 |
(*constructor injects*) |
500 |
fun mk_inject_prop (c, v) = |
|
501 |
HOLogic.mk_eq (mk_field ((c, v), more), mk_field ((c, prime v), prime more)) === |
|
502 |
(HOLogic.conj $ HOLogic.mk_eq (v, prime v) $ HOLogic.mk_eq (more, prime more)); |
|
503 |
val inject_props = map mk_inject_prop named_vars; |
|
504 |
||
5698 | 505 |
(*destructor conversions*) |
4890 | 506 |
fun mk_dest_prop dest dest' (c, v) = |
4894 | 507 |
dest (mk_field ((c, v), more)) === dest' (v, more); |
4890 | 508 |
val dest_props = |
4895 | 509 |
map (mk_dest_prop mk_fst fst) named_vars @ |
510 |
map (mk_dest_prop mk_snd snd) named_vars; |
|
4890 | 511 |
|
5698 | 512 |
(*surjective pairing*) |
513 |
fun mk_surj_prop (c, T) = |
|
514 |
let val p = Free ("p", mk_fieldT ((c, T), moreT)); |
|
515 |
in p === mk_field ((c, mk_fst p), mk_snd p) end; |
|
516 |
val surj_props = map mk_surj_prop fields; |
|
4890 | 517 |
|
5698 | 518 |
|
519 |
(* 1st stage: types_thy *) |
|
520 |
||
6092 | 521 |
val (types_thy, datatype_simps) = |
5698 | 522 |
thy |
523 |
|> field_type_defs fieldT_specs; |
|
524 |
||
525 |
||
526 |
(* 2nd stage: defs_thy *) |
|
4890 | 527 |
|
528 |
val defs_thy = |
|
5698 | 529 |
types_thy |
530 |
|> (Theory.add_consts_i o map (Syntax.no_syn o apfst base)) |
|
531 |
(field_decls @ dest_decls) |
|
6092 | 532 |
|> (PureThy.add_defs_i o map (fn x => (x, [Drule.tag_internal]))) |
5698 | 533 |
(field_specs @ dest_specs); |
4890 | 534 |
|
535 |
val field_defs = get_defs defs_thy field_specs; |
|
536 |
val dest_defs = get_defs defs_thy dest_specs; |
|
537 |
||
538 |
||
5698 | 539 |
(* 3rd stage: thms_thy *) |
540 |
||
541 |
val prove = prove_simp defs_thy; |
|
5713 | 542 |
val prove_std = prove [] (field_defs @ dest_defs @ datatype_simps); |
4890 | 543 |
|
5713 | 544 |
val field_injects = map prove_std inject_props; |
545 |
val dest_convs = map prove_std dest_props; |
|
5698 | 546 |
val surj_pairs = map (prove [DatatypePackage.induct_tac "p" 1] |
6092 | 547 |
(map Thm.symmetric field_defs @ dest_convs)) surj_props; |
5698 | 548 |
|
5707 | 549 |
fun mk_split th = SplitPairedAll.rule (th RS eq_reflection); |
6092 | 550 |
val field_splits = map mk_split surj_pairs; |
4894 | 551 |
|
4890 | 552 |
val thms_thy = |
553 |
defs_thy |
|
6092 | 554 |
|> (PureThy.add_thmss o map Thm.no_attributes) |
4890 | 555 |
[("field_defs", field_defs), |
556 |
("dest_defs", dest_defs), |
|
5698 | 557 |
("dest_convs", dest_convs), |
558 |
("surj_pairs", surj_pairs), |
|
5713 | 559 |
("field_splits", field_splits)]; |
4890 | 560 |
|
5713 | 561 |
in (thms_thy, dest_convs, field_injects, field_splits) end; |
4890 | 562 |
|
563 |
||
564 |
(* record_definition *) |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
565 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
566 |
fun record_definition (args, bname) parent (parents: parent_info list) bfields thy = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
567 |
let |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
568 |
val sign = Theory.sign_of thy; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
569 |
val full = Sign.full_name_path sign bname; |
4890 | 570 |
val base = Sign.base_name; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
571 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
572 |
|
4890 | 573 |
(* basic components *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
574 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
575 |
val alphas = map fst args; |
5197 | 576 |
val name = Sign.full_name sign bname; (*not made part of record name space!*) |
4890 | 577 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
578 |
val parent_fields = flat (map #fields parents); |
4890 | 579 |
val parent_names = map fst parent_fields; |
580 |
val parent_types = map snd parent_fields; |
|
581 |
val parent_len = length parent_fields; |
|
582 |
val parent_xs = variantlist (map (base o fst) parent_fields, [moreN]); |
|
583 |
val parent_vars = ListPair.map Free (parent_xs, parent_types); |
|
4894 | 584 |
val parent_named_vars = parent_names ~~ parent_vars; |
4890 | 585 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
586 |
val fields = map (apfst full) bfields; |
4890 | 587 |
val names = map fst fields; |
588 |
val types = map snd fields; |
|
589 |
val len = length fields; |
|
590 |
val xs = variantlist (map fst bfields, moreN :: parent_xs); |
|
591 |
val vars = ListPair.map Free (xs, types); |
|
4894 | 592 |
val named_vars = names ~~ vars; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
593 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
594 |
val all_fields = parent_fields @ fields; |
4890 | 595 |
val all_names = parent_names @ names; |
596 |
val all_types = parent_types @ types; |
|
597 |
val all_len = parent_len + len; |
|
598 |
val all_xs = parent_xs @ xs; |
|
599 |
val all_vars = parent_vars @ vars; |
|
4894 | 600 |
val all_named_vars = parent_named_vars @ named_vars; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
601 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
602 |
val zeta = variant alphas "'z"; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
603 |
val moreT = TFree (zeta, moreS); |
4895 | 604 |
val more = Free (moreN, moreT); |
5197 | 605 |
val full_moreN = full moreN; |
606 |
fun more_part t = mk_more t full_moreN; |
|
607 |
fun more_part_update t x = mk_more_update t (full_moreN, x); |
|
4894 | 608 |
|
609 |
val parent_more = funpow parent_len mk_snd; |
|
610 |
val idxs = 0 upto (len - 1); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
611 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
612 |
val rec_schemeT = mk_recordT (all_fields, moreT); |
4894 | 613 |
val rec_scheme = mk_record (all_named_vars, more); |
4890 | 614 |
val r = Free ("r", rec_schemeT); |
4894 | 615 |
val recT = mk_recordT (all_fields, HOLogic.unitT); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
616 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
617 |
|
4890 | 618 |
(* prepare print translation functions *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
619 |
|
5698 | 620 |
val field_tr's = |
621 |
print_translation (distinct (flat (map NameSpace.accesses (full_moreN :: names)))); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
622 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
623 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
624 |
(* prepare declarations *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
625 |
|
5197 | 626 |
val sel_decls = map (mk_selC rec_schemeT) bfields @ |
627 |
[mk_moreC rec_schemeT (moreN, moreT)]; |
|
628 |
val update_decls = map (mk_updateC rec_schemeT) bfields @ |
|
629 |
[mk_more_updateC rec_schemeT (moreN, moreT)]; |
|
4890 | 630 |
val make_decls = |
631 |
[(mk_makeC rec_schemeT (make_schemeN, all_types @ [moreT])), |
|
632 |
(mk_makeC recT (makeN, all_types))]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
633 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
634 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
635 |
(* prepare definitions *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
636 |
|
4895 | 637 |
(*record (scheme) type abbreviation*) |
4890 | 638 |
val recordT_specs = |
639 |
[(suffix schemeN bname, alphas @ [zeta], rec_schemeT, Syntax.NoSyn), |
|
640 |
(bname, alphas, recT, Syntax.NoSyn)]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
641 |
|
4894 | 642 |
(*selectors*) |
4890 | 643 |
fun mk_sel_spec (i, c) = |
4894 | 644 |
mk_sel r c :== mk_fst (funpow i mk_snd (parent_more r)); |
645 |
val sel_specs = |
|
646 |
ListPair.map mk_sel_spec (idxs, names) @ |
|
647 |
[more_part r :== funpow len mk_snd (parent_more r)]; |
|
4890 | 648 |
|
649 |
(*updates*) |
|
4894 | 650 |
val all_sels = all_names ~~ map (mk_sel r) all_names; |
4890 | 651 |
fun mk_upd_spec (i, (c, x)) = |
4894 | 652 |
mk_update r (c, x) :== |
653 |
mk_record (nth_update (c, x) (parent_len + i, all_sels), more_part r) |
|
5197 | 654 |
val update_specs = |
655 |
ListPair.map mk_upd_spec (idxs, named_vars) @ |
|
656 |
[more_part_update r more :== mk_record (all_sels, more)]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
657 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
658 |
(*makes*) |
4890 | 659 |
val make_scheme = Const (mk_makeC rec_schemeT (full make_schemeN, all_types @ [moreT])); |
660 |
val make = Const (mk_makeC recT (full makeN, all_types)); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
661 |
val make_specs = |
4894 | 662 |
[list_comb (make_scheme, all_vars) $ more :== rec_scheme, |
663 |
list_comb (make, all_vars) :== mk_record (all_named_vars, HOLogic.unit)]; |
|
664 |
||
665 |
||
666 |
(* prepare propositions *) |
|
667 |
||
668 |
(*selectors*) |
|
669 |
val sel_props = |
|
670 |
map (fn (c, x) => mk_sel rec_scheme c === x) named_vars @ |
|
671 |
[more_part rec_scheme === more]; |
|
672 |
||
673 |
(*updates*) |
|
674 |
fun mk_upd_prop (i, (c, T)) = |
|
675 |
let val x' = Free (variant all_xs (base c ^ "'"), T) in |
|
676 |
mk_update rec_scheme (c, x') === |
|
677 |
mk_record (nth_update (c, x') (parent_len + i, all_named_vars), more) |
|
678 |
end; |
|
5197 | 679 |
val update_props = |
680 |
ListPair.map mk_upd_prop (idxs, fields) @ |
|
681 |
let val more' = Free (variant all_xs (moreN ^ "'"), moreT) |
|
682 |
in [more_part_update rec_scheme more' === mk_record (all_named_vars, more')] end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
683 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
684 |
|
4890 | 685 |
(* 1st stage: fields_thy *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
686 |
|
5713 | 687 |
val (fields_thy, field_simps, field_injects, field_splits) = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
688 |
thy |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
689 |
|> Theory.add_path bname |
4894 | 690 |
|> field_definitions fields names zeta moreT more vars named_vars; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
691 |
|
6092 | 692 |
val named_splits = map2 (fn (c, th) => (suffix field_typeN c, th)) (names, field_splits); |
5698 | 693 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
694 |
|
4890 | 695 |
(* 2nd stage: defs_thy *) |
696 |
||
697 |
val defs_thy = |
|
698 |
fields_thy |
|
699 |
|> Theory.parent_path |
|
5197 | 700 |
|> Theory.add_tyabbrs_i recordT_specs (*not made part of record name space!*) |
4890 | 701 |
|> Theory.add_path bname |
5197 | 702 |
|> Theory.add_trfuns ([], [], field_tr's, []) |
4894 | 703 |
|> (Theory.add_consts_i o map Syntax.no_syn) |
704 |
(sel_decls @ update_decls @ make_decls) |
|
6092 | 705 |
|> (PureThy.add_defs_i o map (fn x => (x, [Drule.tag_internal]))) |
5212 | 706 |
(sel_specs @ update_specs) |
6092 | 707 |
|> (PureThy.add_defs_i o map Thm.no_attributes) make_specs; |
4890 | 708 |
|
709 |
val sel_defs = get_defs defs_thy sel_specs; |
|
710 |
val update_defs = get_defs defs_thy update_specs; |
|
711 |
val make_defs = get_defs defs_thy make_specs; |
|
712 |
||
713 |
||
714 |
(* 3rd stage: thms_thy *) |
|
715 |
||
4895 | 716 |
val parent_simps = flat (map #simps parents); |
5698 | 717 |
val prove = prove_simp defs_thy []; |
4890 | 718 |
|
4895 | 719 |
val sel_convs = map (prove (parent_simps @ sel_defs @ field_simps)) sel_props; |
720 |
val update_convs = map (prove (parent_simps @ update_defs @ sel_convs)) update_props; |
|
4894 | 721 |
|
722 |
val simps = field_simps @ sel_convs @ update_convs @ make_defs; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
723 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
724 |
val thms_thy = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
725 |
defs_thy |
6092 | 726 |
|> (PureThy.add_thmss o map Thm.no_attributes) |
4895 | 727 |
[("select_defs", sel_defs), |
4890 | 728 |
("update_defs", update_defs), |
4894 | 729 |
("make_defs", make_defs), |
4895 | 730 |
("select_convs", sel_convs), |
4894 | 731 |
("update_convs", update_convs)] |
6092 | 732 |
|> PureThy.add_thmss |
5707 | 733 |
[(("simps", simps), [Simplifier.simp_add_global]), |
5713 | 734 |
(("iffs", field_injects), [add_iffs_global])]; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
735 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
736 |
|
4890 | 737 |
(* 4th stage: final_thy *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
738 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
739 |
val final_thy = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
740 |
thms_thy |
4895 | 741 |
|> put_record name {args = args, parent = parent, fields = fields, simps = simps} |
5713 | 742 |
|> add_record_splits named_splits |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
743 |
|> Theory.parent_path; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
744 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
745 |
in final_thy end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
746 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
747 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
748 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
749 |
(** theory extender interface **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
750 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
751 |
(* prepare arguments *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
752 |
|
4894 | 753 |
(*note: read_raw_typ avoids expanding type abbreviations*) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
754 |
fun read_raw_parent sign s = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
755 |
(case Sign.read_raw_typ (sign, K None) s handle TYPE (msg, _, _) => error msg of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
756 |
Type (name, Ts) => (Ts, name) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
757 |
| _ => error ("Bad parent record specification: " ^ quote s)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
758 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
759 |
fun read_typ sign (env, s) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
760 |
let |
5060 | 761 |
fun def_sort (x, ~1) = assoc (env, x) |
762 |
| def_sort _ = None; |
|
763 |
val T = Type.no_tvars (Sign.read_typ (sign, def_sort) s) handle TYPE (msg, _, _) => error msg; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
764 |
in (Term.add_typ_tfrees (T, env), T) end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
765 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
766 |
fun cert_typ sign (env, raw_T) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
767 |
let val T = Type.no_tvars (Sign.certify_typ sign raw_T) handle TYPE (msg, _, _) => error msg |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
768 |
in (Term.add_typ_tfrees (T, env), T) end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
769 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
770 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
771 |
(* add_record *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
772 |
|
4895 | 773 |
(*we do all preparations and error checks here, deferring the real |
774 |
work to record_definition*) |
|
4890 | 775 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
776 |
fun gen_add_record prep_typ prep_raw_parent (params, bname) raw_parent raw_fields thy = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
777 |
let |
4970 | 778 |
val _ = Theory.requires thy "Record" "record definitions"; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
779 |
val sign = Theory.sign_of thy; |
5698 | 780 |
val _ = message ("Defining record " ^ quote bname ^ " ..."); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
781 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
782 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
783 |
(* parents *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
784 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
785 |
fun prep_inst T = snd (cert_typ sign ([], T)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
786 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
787 |
val parent = apsome (apfst (map prep_inst) o prep_raw_parent sign) raw_parent |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
788 |
handle ERROR => error ("The error(s) above in parent record specification"); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
789 |
val parents = add_parents thy (parent, []); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
790 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
791 |
val init_env = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
792 |
(case parent of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
793 |
None => [] |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
794 |
| Some (types, _) => foldr Term.add_typ_tfrees (types, [])); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
795 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
796 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
797 |
(* fields *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
798 |
|
4967 | 799 |
fun prep_field (env, (c, raw_T)) = |
800 |
let val (env', T) = prep_typ sign (env, raw_T) handle ERROR => |
|
801 |
error ("The error(s) above occured in field " ^ quote c) |
|
802 |
in (env', (c, T)) end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
803 |
|
4967 | 804 |
val (envir, bfields) = foldl_map prep_field (init_env, raw_fields); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
805 |
val envir_names = map fst envir; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
806 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
807 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
808 |
(* args *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
809 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
810 |
val defaultS = Sign.defaultS sign; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
811 |
val args = map (fn x => (x, if_none (assoc (envir, x)) defaultS)) params; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
812 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
813 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
814 |
(* errors *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
815 |
|
4890 | 816 |
val name = Sign.full_name sign bname; |
817 |
val err_dup_record = |
|
818 |
if is_none (get_record thy name) then [] |
|
819 |
else ["Duplicate definition of record " ^ quote name]; |
|
820 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
821 |
val err_dup_parms = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
822 |
(case duplicates params of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
823 |
[] => [] |
4890 | 824 |
| dups => ["Duplicate parameter(s) " ^ commas dups]); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
825 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
826 |
val err_extra_frees = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
827 |
(case gen_rems (op =) (envir_names, params) of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
828 |
[] => [] |
4890 | 829 |
| extras => ["Extra free type variable(s) " ^ commas extras]); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
830 |
|
4890 | 831 |
val err_no_fields = if null bfields then ["No fields present"] else []; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
832 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
833 |
val err_dup_fields = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
834 |
(case duplicates (map fst bfields) of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
835 |
[] => [] |
4890 | 836 |
| dups => ["Duplicate field(s) " ^ commas_quote dups]); |
837 |
||
838 |
val err_bad_fields = |
|
839 |
if forall (not_equal moreN o fst) bfields then [] |
|
840 |
else ["Illegal field name " ^ quote moreN]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
841 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
842 |
val err_dup_sorts = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
843 |
(case duplicates envir_names of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
844 |
[] => [] |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
845 |
| dups => ["Inconsistent sort constraints for " ^ commas dups]); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
846 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
847 |
val errs = |
4890 | 848 |
err_dup_record @ err_dup_parms @ err_extra_frees @ err_no_fields @ |
849 |
err_dup_fields @ err_bad_fields @ err_dup_sorts; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
850 |
in |
4890 | 851 |
if null errs then () else error (cat_lines errs); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
852 |
thy |> record_definition (args, bname) parent parents bfields |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
853 |
end |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
854 |
handle ERROR => error ("Failed to define record " ^ quote bname); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
855 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
856 |
val add_record = gen_add_record read_typ read_raw_parent; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
857 |
val add_record_i = gen_add_record cert_typ (K I); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
858 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
859 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
860 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
861 |
(** setup theory **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
862 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
863 |
val setup = |
5006 | 864 |
[RecordsData.init, |
5698 | 865 |
Theory.add_trfuns ([], parse_translation, [], []), |
866 |
add_wrapper record_split_wrapper]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
867 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
868 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
869 |
end; |
5698 | 870 |
|
871 |
||
872 |
structure BasicRecordPackage: BASIC_RECORD_PACKAGE = RecordPackage; |
|
873 |
open BasicRecordPackage; |