author | wenzelm |
Tue, 20 Nov 2001 22:54:06 +0100 | |
changeset 12255 | 93d4972238c7 |
parent 12247 | 9b029789aff6 |
child 12265 | 6df58e87ec91 |
permissions | -rw-r--r-- |
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(* Title: HOL/Tools/record_package.ML |
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ID: $Id$ |
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Author: Wolfgang Naraschewski and Markus Wenzel, TU Muenchen |
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License: GPL (GNU GENERAL PUBLIC LICENSE) |
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Extensible records with structural subtyping in HOL. |
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*) |
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signature BASIC_RECORD_PACKAGE = |
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sig |
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val record_simproc: simproc |
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val record_split_tac: int -> tactic |
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val record_split_name: string |
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val record_split_wrapper: string * wrapper |
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end; |
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signature RECORD_PACKAGE = |
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sig |
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include BASIC_RECORD_PACKAGE |
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val quiet_mode: bool ref |
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val updateN: string |
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val mk_fieldT: (string * typ) * typ -> typ |
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val dest_fieldT: typ -> (string * typ) * typ |
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val mk_field: (string * term) * term -> term |
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val mk_fst: term -> term |
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val mk_snd: term -> term |
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val mk_recordT: (string * typ) list * typ -> typ |
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val dest_recordT: typ -> (string * typ) list * typ |
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val mk_record: (string * term) list * term -> term |
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val mk_sel: term -> string -> term |
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val mk_update: term -> string * term -> term |
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val print_records: theory -> unit |
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val add_record: (string list * bstring) -> string option |
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-> (bstring * string) list -> theory -> theory * {simps: thm list, iffs: thm list} |
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val add_record_i: (string list * bstring) -> (typ list * string) option |
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-> (bstring * typ) list -> theory -> theory * {simps: thm list, iffs: thm list} |
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val setup: (theory -> theory) list |
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end; |
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structure RecordPackage: RECORD_PACKAGE = |
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struct |
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(*** theory context references ***) |
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val product_typeN = "Record.product_type"; |
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val product_typeI = thm "product_typeI"; |
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val product_type_inject = thm "product_type_inject"; |
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val product_type_conv1 = thm "product_type_conv1"; |
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val product_type_conv2 = thm "product_type_conv2"; |
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val product_type_induct = thm "product_type_induct"; |
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val product_type_cases = thm "product_type_cases"; |
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val product_type_split_paired_all = thm "product_type_split_paired_all"; |
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(*** utilities ***) |
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(* messages *) |
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val quiet_mode = ref false; |
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fun message s = if ! quiet_mode then () else writeln s; |
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(* syntax *) |
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fun prune n xs = Library.drop (n, xs); |
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fun prefix_base s = NameSpace.map_base (fn bname => s ^ bname); |
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val Trueprop = HOLogic.mk_Trueprop; |
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fun All xs t = Term.list_all_free (xs, t); |
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infix 9 $$; |
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infix 0 :== ===; |
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infixr 0 ==>; |
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val (op $$) = Term.list_comb; |
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val (op :==) = Logic.mk_defpair; |
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val (op ===) = Trueprop o HOLogic.mk_eq; |
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val (op ==>) = Logic.mk_implies; |
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(* attributes *) |
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val case_names_fields = RuleCases.case_names ["fields"]; |
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fun induct_type_global name = [case_names_fields, InductAttrib.induct_type_global name]; |
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fun cases_type_global name = [case_names_fields, InductAttrib.cases_type_global name]; |
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(* tactics *) |
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fun simp_all_tac ss simps = ALLGOALS (Simplifier.asm_full_simp_tac (ss addsimps simps)); |
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fun try_param_tac x s rule i st = |
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res_inst_tac [(x, (case Tactic.innermost_params i st of [] => s | (p, _) :: _ => p))] rule i st; |
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(*** syntax operations ***) |
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(** name components **) |
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val rN = "r"; |
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val moreN = "more"; |
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val schemeN = "_scheme"; |
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val field_typeN = "_field_type"; |
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val fieldN = "_field"; |
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val fstN = "_val"; |
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val sndN = "_more"; |
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val updateN = "_update"; |
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val makeN = "make"; |
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val extendN = "extend"; |
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val truncateN = "truncate"; |
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(*see typedef_package.ML*) |
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val RepN = "Rep_"; |
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val AbsN = "Abs_"; |
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(** tuple operations **) |
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(* types *) |
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fun mk_fieldT ((c, T), U) = Type (suffix field_typeN c, [T, U]); |
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fun dest_fieldT (typ as Type (c_field_type, [T, U])) = |
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(case try (unsuffix field_typeN) c_field_type of |
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None => raise TYPE ("dest_fieldT", [typ], []) |
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| Some c => ((c, T), U)) |
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| dest_fieldT typ = raise TYPE ("dest_fieldT", [typ], []); |
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(* morphisms *) |
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fun mk_Rep U (c, T) = |
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Const (suffix field_typeN (prefix_base RepN c), |
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mk_fieldT ((c, T), U) --> HOLogic.mk_prodT (T, U)); |
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fun mk_Abs U (c, T) = |
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Const (suffix field_typeN (prefix_base AbsN c), |
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HOLogic.mk_prodT (T, U) --> mk_fieldT ((c, T), U)); |
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(* constructors *) |
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fun mk_fieldC U (c, T) = (suffix fieldN c, T --> U --> mk_fieldT ((c, T), U)); |
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fun mk_field ((c, t), u) = |
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let val T = fastype_of t and U = fastype_of u |
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in Const (suffix fieldN c, [T, U] ---> mk_fieldT ((c, T), U)) $ t $ u end; |
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(* destructors *) |
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fun mk_fstC U (c, T) = (suffix fstN c, mk_fieldT ((c, T), U) --> T); |
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fun mk_sndC U (c, T) = (suffix sndN c, mk_fieldT ((c, T), U) --> U); |
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fun dest_field fst_or_snd p = |
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let |
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val pT = fastype_of p; |
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val ((c, T), U) = dest_fieldT pT; |
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val (destN, destT) = if fst_or_snd then (fstN, T) else (sndN, U); |
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in Const (suffix destN c, pT --> destT) $ p end; |
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val mk_fst = dest_field true; |
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val mk_snd = dest_field false; |
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(** record operations **) |
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(* types *) |
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val mk_recordT = foldr mk_fieldT; |
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fun dest_recordT T = |
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(case try dest_fieldT T of |
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None => ([], T) |
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| Some (c_T, U) => apfst (cons c_T) (dest_recordT U)); |
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fun find_fieldT c rT = |
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(case assoc (fst (dest_recordT rT), c) of |
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None => raise TYPE ("find_field: " ^ c, [rT], []) |
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| Some T => T); |
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(* constructors *) |
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val mk_record = foldr mk_field; |
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(* selectors *) |
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fun mk_selC rT (c, T) = (c, rT --> T); |
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fun mk_sel r c = |
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let val rT = fastype_of r |
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in Const (mk_selC rT (c, find_fieldT c rT)) $ r end; |
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202 |
|
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fun mk_named_sels names r = names ~~ map (mk_sel r) names; |
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204 |
|
4894 | 205 |
val mk_moreC = mk_selC; |
206 |
||
207 |
fun mk_more r c = |
|
208 |
let val rT = fastype_of r |
|
209 |
in Const (mk_moreC rT (c, snd (dest_recordT rT))) $ r end; |
|
210 |
||
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211 |
|
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|
212 |
(* updates *) |
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213 |
|
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fun mk_updateC rT (c, T) = (suffix updateN c, T --> rT --> rT); |
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215 |
|
4890 | 216 |
fun mk_update r (c, x) = |
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let val rT = fastype_of r |
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in Const (mk_updateC rT (c, find_fieldT c rT)) $ x $ r end; |
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219 |
|
5197 | 220 |
val mk_more_updateC = mk_updateC; |
221 |
||
222 |
fun mk_more_update r (c, x) = |
|
223 |
let val rT = fastype_of r |
|
224 |
in Const (mk_more_updateC rT (c, snd (dest_recordT rT))) $ x $ r end; |
|
225 |
||
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226 |
|
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227 |
|
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|
228 |
(** concrete syntax for records **) |
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229 |
|
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230 |
(* parse translations *) |
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231 |
|
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fun gen_field_tr mark sfx (t as Const (c, _) $ Const (name, _) $ arg) = |
5197 | 233 |
if c = mark then Syntax.const (suffix sfx name) $ arg |
234 |
else raise TERM ("gen_field_tr: " ^ mark, [t]) |
|
235 |
| gen_field_tr mark _ t = raise TERM ("gen_field_tr: " ^ mark, [t]); |
|
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236 |
|
5197 | 237 |
fun gen_fields_tr sep mark sfx (tm as Const (c, _) $ t $ u) = |
238 |
if c = sep then gen_field_tr mark sfx t :: gen_fields_tr sep mark sfx u |
|
5201 | 239 |
else [gen_field_tr mark sfx tm] |
240 |
| gen_fields_tr _ mark sfx tm = [gen_field_tr mark sfx tm]; |
|
5197 | 241 |
|
242 |
fun gen_record_tr sep mark sfx unit [t] = foldr (op $) (gen_fields_tr sep mark sfx t, unit) |
|
5201 | 243 |
| gen_record_tr _ _ _ _ ts = raise TERM ("gen_record_tr", ts); |
5197 | 244 |
|
245 |
fun gen_record_scheme_tr sep mark sfx [t, more] = foldr (op $) (gen_fields_tr sep mark sfx t, more) |
|
5201 | 246 |
| gen_record_scheme_tr _ _ _ ts = raise TERM ("gen_record_scheme_tr", ts); |
5197 | 247 |
|
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248 |
|
5197 | 249 |
val record_type_tr = gen_record_tr "_field_types" "_field_type" field_typeN (Syntax.const "unit"); |
250 |
val record_type_scheme_tr = gen_record_scheme_tr "_field_types" "_field_type" field_typeN; |
|
251 |
||
252 |
val record_tr = gen_record_tr "_fields" "_field" fieldN HOLogic.unit; |
|
253 |
val record_scheme_tr = gen_record_scheme_tr "_fields" "_field" fieldN; |
|
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254 |
|
5197 | 255 |
fun record_update_tr [t, u] = |
256 |
foldr (op $) (rev (gen_fields_tr "_updates" "_update" updateN u), t) |
|
257 |
| record_update_tr ts = raise TERM ("record_update_tr", ts); |
|
258 |
||
259 |
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fun update_name_tr (Free (x, T) :: ts) = Free (suffix updateN x, T) $$ ts |
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| update_name_tr (Const (x, T) :: ts) = Const (suffix updateN x, T) $$ ts |
11833 | 262 |
| update_name_tr (((c as Const ("_constrain", _)) $ t $ ty) :: ts) = |
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(c $ update_name_tr [t] $ (Syntax.const "fun" $ ty $ Syntax.const "dummy")) $$ ts |
11833 | 264 |
| update_name_tr ts = raise TERM ("update_name_tr", ts); |
265 |
||
266 |
||
5197 | 267 |
val parse_translation = |
268 |
[("_record_type", record_type_tr), |
|
269 |
("_record_type_scheme", record_type_scheme_tr), |
|
270 |
("_record", record_tr), |
|
271 |
("_record_scheme", record_scheme_tr), |
|
11833 | 272 |
("_record_update", record_update_tr), |
273 |
("_update_name", update_name_tr)]; |
|
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274 |
|
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275 |
|
4890 | 276 |
(* print translations *) |
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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 = |
|
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|
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; |
|
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289 |
in |
5197 | 290 |
if is_unit u then Syntax.const record $ t' |
291 |
else Syntax.const record_scheme $ t' $ u |
|
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292 |
end; |
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|
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' = |
|
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300 |
gen_record_tr' "_fields" "_field" fieldN |
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301 |
(fn Const ("Unity", _) => true | _ => false) "_record" "_record_scheme"; |
5197 | 302 |
|
303 |
fun record_update_tr' tm = |
|
304 |
let val (ts, u) = gen_fields_tr' "_update" updateN tm in |
|
305 |
Syntax.const "_record_update" $ u $ |
|
306 |
foldr1 (fn (v, w) => Syntax.const "_updates" $ v $ w) (rev ts) |
|
307 |
end; |
|
308 |
||
309 |
||
5201 | 310 |
fun gen_field_tr' sfx tr' name = |
311 |
let val name_sfx = suffix sfx name |
|
312 |
in (name_sfx, fn [t, u] => tr' (Syntax.const name_sfx $ t $ u) | _ => raise Match) end; |
|
313 |
||
5197 | 314 |
fun print_translation names = |
315 |
map (gen_field_tr' field_typeN record_type_tr') names @ |
|
316 |
map (gen_field_tr' fieldN record_tr') names @ |
|
317 |
map (gen_field_tr' updateN record_update_tr') names; |
|
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|
318 |
|
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|
319 |
|
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|
320 |
|
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|
321 |
(*** extend theory by record definition ***) |
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|
322 |
|
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|
323 |
(** record info **) |
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|
324 |
|
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|
325 |
(* type record_info and parent_info *) |
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|
326 |
|
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|
327 |
type record_info = |
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|
328 |
{args: (string * sort) list, |
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|
329 |
parent: (typ list * string) option, |
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|
330 |
fields: (string * typ) list, |
12247 | 331 |
field_inducts: thm list, |
332 |
field_cases: thm list, |
|
333 |
simps: thm list}; |
|
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|
334 |
|
12247 | 335 |
fun make_record_info args parent fields field_inducts field_cases simps = |
336 |
{args = args, parent = parent, fields = fields, field_inducts = field_inducts, |
|
337 |
field_cases = field_cases, simps = simps}: record_info; |
|
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|
338 |
|
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|
339 |
type parent_info = |
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|
340 |
{name: string, |
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|
341 |
fields: (string * typ) list, |
12247 | 342 |
field_inducts: thm list, |
343 |
field_cases: thm list, |
|
344 |
simps: thm list}; |
|
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|
345 |
|
12247 | 346 |
fun make_parent_info name fields field_inducts field_cases simps = |
347 |
{name = name, fields = fields, field_inducts = field_inducts, |
|
348 |
field_cases = field_cases, simps = simps}: parent_info; |
|
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|
349 |
|
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|
350 |
|
5052 | 351 |
(* data kind 'HOL/records' *) |
5001 | 352 |
|
7178 | 353 |
type record_data = |
354 |
{records: record_info Symtab.table, |
|
355 |
sel_upd: |
|
356 |
{selectors: unit Symtab.table, |
|
357 |
updates: string Symtab.table, |
|
358 |
simpset: Simplifier.simpset}, |
|
359 |
field_splits: |
|
360 |
{fields: unit Symtab.table, |
|
361 |
simpset: Simplifier.simpset}}; |
|
362 |
||
363 |
fun make_record_data records sel_upd field_splits = |
|
364 |
{records = records, sel_upd = sel_upd, field_splits = field_splits}: record_data; |
|
365 |
||
5006 | 366 |
structure RecordsArgs = |
367 |
struct |
|
368 |
val name = "HOL/records"; |
|
7178 | 369 |
type T = record_data; |
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|
370 |
|
7178 | 371 |
val empty = |
372 |
make_record_data Symtab.empty |
|
373 |
{selectors = Symtab.empty, updates = Symtab.empty, simpset = HOL_basic_ss} |
|
374 |
{fields = Symtab.empty, simpset = HOL_basic_ss}; |
|
375 |
||
6556 | 376 |
val copy = I; |
12109 | 377 |
val finish = I; |
5006 | 378 |
val prep_ext = I; |
7178 | 379 |
fun merge |
380 |
({records = recs1, |
|
381 |
sel_upd = {selectors = sels1, updates = upds1, simpset = ss1}, |
|
382 |
field_splits = {fields = flds1, simpset = fld_ss1}}, |
|
383 |
{records = recs2, |
|
384 |
sel_upd = {selectors = sels2, updates = upds2, simpset = ss2}, |
|
385 |
field_splits = {fields = flds2, simpset = fld_ss2}}) = |
|
386 |
make_record_data |
|
387 |
(Symtab.merge (K true) (recs1, recs2)) |
|
388 |
{selectors = Symtab.merge (K true) (sels1, sels2), |
|
389 |
updates = Symtab.merge (K true) (upds1, upds2), |
|
390 |
simpset = Simplifier.merge_ss (ss1, ss2)} |
|
391 |
{fields = Symtab.merge (K true) (flds1, flds2), |
|
392 |
simpset = Simplifier.merge_ss (fld_ss1, fld_ss2)}; |
|
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|
393 |
|
7178 | 394 |
fun print sg ({records = recs, ...}: record_data) = |
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|
395 |
let |
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|
396 |
val prt_typ = Sign.pretty_typ sg; |
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|
397 |
|
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|
398 |
fun pretty_parent None = [] |
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|
399 |
| pretty_parent (Some (Ts, name)) = |
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|
400 |
[Pretty.block [prt_typ (Type (name, Ts)), Pretty.str " +"]]; |
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changeset
|
401 |
|
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changeset
|
402 |
fun pretty_field (c, T) = Pretty.block |
12129 | 403 |
[Pretty.str (Sign.cond_extern sg Sign.constK c), Pretty.str " ::", |
404 |
Pretty.brk 1, Pretty.quote (prt_typ T)]; |
|
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changeset
|
405 |
|
12247 | 406 |
fun pretty_record (name, {args, parent, fields, ...}: record_info) = |
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|
407 |
Pretty.block (Pretty.fbreaks (Pretty.block |
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
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changeset
|
408 |
[prt_typ (Type (name, map TFree args)), Pretty.str " = "] :: |
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|
409 |
pretty_parent parent @ map pretty_field fields)); |
12129 | 410 |
in map pretty_record (Symtab.dest recs) |> Pretty.chunks |> Pretty.writeln end; |
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|
411 |
end; |
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|
412 |
|
5006 | 413 |
structure RecordsData = TheoryDataFun(RecordsArgs); |
414 |
val print_records = RecordsData.print; |
|
415 |
||
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|
416 |
|
7178 | 417 |
(* access 'records' *) |
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|
418 |
|
7178 | 419 |
fun get_record thy name = Symtab.lookup (#records (RecordsData.get thy), name); |
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|
420 |
|
4890 | 421 |
fun put_record name info thy = |
7178 | 422 |
let |
423 |
val {records, sel_upd, field_splits} = RecordsData.get thy; |
|
424 |
val data = make_record_data (Symtab.update ((name, info), records)) sel_upd field_splits; |
|
425 |
in RecordsData.put data thy end; |
|
426 |
||
427 |
||
428 |
(* access 'sel_upd' *) |
|
429 |
||
430 |
fun get_sel_upd sg = #sel_upd (RecordsData.get_sg sg); |
|
431 |
||
432 |
fun get_selectors sg name = Symtab.lookup (#selectors (get_sel_upd sg), name); |
|
433 |
fun get_updates sg name = Symtab.lookup (#updates (get_sel_upd sg), name); |
|
434 |
fun get_simpset sg = #simpset (get_sel_upd sg); |
|
435 |
||
436 |
||
437 |
fun put_sel_upd names simps thy = |
|
438 |
let |
|
439 |
val sels = map (rpair ()) names; |
|
440 |
val upds = map (suffix updateN) names ~~ names; |
|
441 |
||
442 |
val {records, sel_upd = {selectors, updates, simpset}, field_splits} = RecordsData.get thy; |
|
443 |
val data = make_record_data records |
|
444 |
{selectors = Symtab.extend (selectors, sels), |
|
445 |
updates = Symtab.extend (updates, upds), |
|
446 |
simpset = Simplifier.addsimps (simpset, simps)} |
|
447 |
field_splits; |
|
448 |
in RecordsData.put data thy end; |
|
449 |
||
450 |
||
451 |
(* access 'field_splits' *) |
|
5698 | 452 |
|
453 |
fun add_record_splits splits thy = |
|
454 |
let |
|
7178 | 455 |
val {records, sel_upd, field_splits = {fields, simpset}} = RecordsData.get thy; |
456 |
val flds = map (rpair () o fst) splits; |
|
457 |
val simps = map snd splits; |
|
458 |
val data = make_record_data records sel_upd |
|
459 |
{fields = Symtab.extend (fields, flds), simpset = Simplifier.addsimps (simpset, simps)}; |
|
460 |
in RecordsData.put data thy end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
461 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
462 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
463 |
(* parent records *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
464 |
|
12247 | 465 |
fun add_parents thy None parents = parents |
466 |
| add_parents thy (Some (types, name)) parents = |
|
467 |
let |
|
468 |
val sign = Theory.sign_of thy; |
|
469 |
fun err msg = error (msg ^ " parent record " ^ quote name); |
|
12255 | 470 |
|
12247 | 471 |
val {args, parent, fields, field_inducts, field_cases, simps} = |
472 |
(case get_record thy name of Some info => info | None => err "Unknown"); |
|
473 |
val _ = if length types <> length args then err "Bad number of arguments for" else (); |
|
12255 | 474 |
|
12247 | 475 |
fun bad_inst ((x, S), T) = |
476 |
if Sign.of_sort sign (T, S) then None else Some x |
|
477 |
val bads = mapfilter bad_inst (args ~~ types); |
|
12255 | 478 |
|
12247 | 479 |
val inst = map fst args ~~ types; |
480 |
val subst = Term.map_type_tfree (fn (x, _) => the (assoc (inst, x))); |
|
481 |
val parent' = apsome (apfst (map subst)) parent; |
|
482 |
val fields' = map (apsnd subst) fields; |
|
483 |
in |
|
12255 | 484 |
conditional (not (null bads)) (fn () => |
485 |
err ("Ill-sorted instantiation of " ^ commas bads ^ " in")); |
|
486 |
add_parents thy parent' |
|
12247 | 487 |
(make_parent_info name fields' field_inducts field_cases simps :: parents) |
488 |
end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
489 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
490 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
491 |
|
7178 | 492 |
(** record simproc **) |
493 |
||
494 |
local |
|
495 |
||
8100 | 496 |
val sel_upd_pat = [Thm.read_cterm (Theory.sign_of HOL.thy) ("s (u k r)", HOLogic.termT)]; |
7178 | 497 |
|
498 |
fun proc sg _ t = |
|
499 |
(case t of (sel as Const (s, _)) $ ((upd as Const (u, _)) $ k $ r) => |
|
500 |
(case get_selectors sg s of Some () => |
|
501 |
(case get_updates sg u of Some u_name => |
|
502 |
let |
|
11967 | 503 |
fun mk_free x t = Free (x, fastype_of t); |
504 |
val k' = mk_free "k" k; |
|
505 |
val r' = mk_free "r" r; |
|
7178 | 506 |
val t' = sel $ (upd $ k' $ r'); |
11967 | 507 |
fun prove prop = |
508 |
Tactic.prove sg ["k", "r"] [] prop (K (simp_all_tac (get_simpset sg) [])); |
|
7178 | 509 |
in |
11967 | 510 |
if u_name = s then Some (prove (Logic.mk_equals (t', k'))) |
511 |
else Some (prove (Logic.mk_equals (t', sel $ r'))) |
|
7178 | 512 |
end |
513 |
| None => None) |
|
514 |
| None => None) |
|
515 |
| _ => None); |
|
516 |
||
517 |
in |
|
518 |
||
519 |
val record_simproc = Simplifier.mk_simproc "record_simp" sel_upd_pat proc; |
|
520 |
||
521 |
end; |
|
522 |
||
523 |
||
524 |
||
5698 | 525 |
(** record field splitting **) |
526 |
||
6358 | 527 |
(* tactic *) |
528 |
||
5698 | 529 |
fun record_split_tac i st = |
530 |
let |
|
7178 | 531 |
val {field_splits = {fields, simpset}, ...} = RecordsData.get_sg (Thm.sign_of_thm st); |
5698 | 532 |
|
7178 | 533 |
fun is_fieldT (_, Type (a, [_, _])) = is_some (Symtab.lookup (fields, a)) |
5698 | 534 |
| is_fieldT _ = false; |
535 |
val params = Logic.strip_params (Library.nth_elem (i - 1, Thm.prems_of st)); |
|
536 |
in |
|
7178 | 537 |
if exists is_fieldT params then Simplifier.full_simp_tac simpset i st |
5698 | 538 |
else Seq.empty |
539 |
end handle Library.LIST _ => Seq.empty; |
|
540 |
||
6358 | 541 |
|
542 |
(* wrapper *) |
|
543 |
||
5707 | 544 |
val record_split_name = "record_split_tac"; |
545 |
val record_split_wrapper = (record_split_name, fn tac => record_split_tac ORELSE' tac); |
|
5698 | 546 |
|
547 |
||
6358 | 548 |
(* method *) |
549 |
||
550 |
val record_split_method = |
|
9705 | 551 |
("record_split", Method.no_args (Method.SIMPLE_METHOD' HEADGOAL record_split_tac), |
6358 | 552 |
"split record fields"); |
553 |
||
554 |
||
12255 | 555 |
|
4890 | 556 |
(** internal theory extenders **) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
557 |
|
11832 | 558 |
(* field_typedefs *) |
5698 | 559 |
|
11832 | 560 |
fun field_typedefs zeta moreT names theory = |
5698 | 561 |
let |
11832 | 562 |
val alpha = "'a"; |
563 |
val aT = TFree (alpha, HOLogic.termS); |
|
564 |
val UNIV = HOLogic.mk_UNIV (HOLogic.mk_prodT (aT, moreT)); |
|
5698 | 565 |
|
11832 | 566 |
fun type_def (thy, name) = |
11940 | 567 |
let val (thy', {type_definition, set_def = Some def, ...}) = |
568 |
thy |> setmp TypedefPackage.quiet_mode true |
|
11832 | 569 |
(TypedefPackage.add_typedef_i true None |
570 |
(suffix field_typeN (Sign.base_name name), [alpha, zeta], Syntax.NoSyn) UNIV None |
|
571 |
(Tactic.rtac UNIV_witness 1)) |
|
572 |
in (thy', Tactic.rewrite_rule [def] type_definition) end |
|
573 |
in foldl_map type_def (theory, names) end; |
|
5698 | 574 |
|
575 |
||
4894 | 576 |
(* field_definitions *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
577 |
|
11832 | 578 |
fun field_definitions fields names xs alphas zeta moreT more vars named_vars thy = |
4890 | 579 |
let |
5698 | 580 |
val sign = Theory.sign_of thy; |
4890 | 581 |
val base = Sign.base_name; |
5698 | 582 |
val full_path = Sign.full_name_path sign; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
583 |
|
11832 | 584 |
val xT = TFree (variant alphas "'x", HOLogic.termS); |
585 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
586 |
|
4890 | 587 |
(* prepare declarations and definitions *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
588 |
|
5698 | 589 |
(*field constructors*) |
4890 | 590 |
val field_decls = map (mk_fieldC moreT) fields; |
591 |
||
11832 | 592 |
fun mk_field_spec ((c, T), v) = |
593 |
Term.head_of (mk_field ((c, v), more)) :== |
|
594 |
lambda v (lambda more (mk_Abs moreT (c, T) $ (HOLogic.mk_prod (v, more)))); |
|
595 |
val field_specs = map mk_field_spec (fields ~~ vars); |
|
4890 | 596 |
|
597 |
(*field destructors*) |
|
5698 | 598 |
val dest_decls = map (mk_fstC moreT) fields @ map (mk_sndC moreT) fields; |
599 |
||
11832 | 600 |
fun mk_dest_spec dest sel (c, T) = |
5698 | 601 |
let val p = Free ("p", mk_fieldT ((c, T), moreT)); |
11832 | 602 |
in Term.head_of (dest p) :== lambda p (sel (mk_Rep moreT (c, T) $ p)) end; |
603 |
val dest_specs1 = map (mk_dest_spec mk_fst HOLogic.mk_fst) fields; |
|
604 |
val dest_specs2 = map (mk_dest_spec mk_snd HOLogic.mk_snd) fields; |
|
4890 | 605 |
|
606 |
||
11832 | 607 |
(* 1st stage: defs_thy *) |
5713 | 608 |
|
11832 | 609 |
val (defs_thy, (((typedefs, field_defs), dest_defs1), dest_defs2)) = |
610 |
thy |
|
611 |
|> field_typedefs zeta moreT names |
|
612 |
|>> (Theory.add_consts_i o map (Syntax.no_syn o apfst base)) (field_decls @ dest_decls) |
|
613 |
|>>> (PureThy.add_defs_i false o map Thm.no_attributes) field_specs |
|
614 |
|>>> (PureThy.add_defs_i false o map Thm.no_attributes) dest_specs1 |
|
615 |
|>>> (PureThy.add_defs_i false o map Thm.no_attributes) dest_specs2; |
|
4890 | 616 |
|
11832 | 617 |
val prod_types = map (fn (((a, b), c), d) => product_typeI OF [a, b, c, d]) |
618 |
(typedefs ~~ field_defs ~~ dest_defs1 ~~ dest_defs2); |
|
4890 | 619 |
|
5698 | 620 |
|
11832 | 621 |
(* 2nd stage: thms_thy *) |
5698 | 622 |
|
11832 | 623 |
fun make th = map (fn prod_type => Drule.standard (th OF [prod_type])) prod_types; |
4890 | 624 |
|
11940 | 625 |
val dest_convs = make product_type_conv1 @ make product_type_conv2; |
11832 | 626 |
val field_injects = make product_type_inject; |
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
627 |
val field_inducts = make product_type_induct; |
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
628 |
val field_cases = make product_type_cases; |
11832 | 629 |
val field_splits = make product_type_split_paired_all; |
4894 | 630 |
|
11940 | 631 |
val (thms_thy, [field_defs', dest_defs', dest_convs', field_injects', |
632 |
field_splits', field_inducts', field_cases']) = defs_thy |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
633 |
|> (PureThy.add_thmss o map Thm.no_attributes) |
11940 | 634 |
[("field_defs", field_defs), |
635 |
("dest_defs", dest_defs1 @ dest_defs2), |
|
636 |
("dest_convs", dest_convs), |
|
637 |
("field_injects", field_injects), |
|
638 |
("field_splits", field_splits), |
|
639 |
("field_inducts", field_inducts), |
|
640 |
("field_cases", field_cases)]; |
|
4890 | 641 |
|
11940 | 642 |
in (thms_thy, dest_convs', field_injects', field_splits', field_inducts', field_cases') end; |
4890 | 643 |
|
644 |
||
645 |
(* record_definition *) |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
646 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
647 |
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
|
648 |
let |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
649 |
val sign = Theory.sign_of thy; |
12247 | 650 |
|
651 |
val alphas = map fst args; |
|
652 |
val name = Sign.full_name sign bname; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
653 |
val full = Sign.full_name_path sign bname; |
4890 | 654 |
val base = Sign.base_name; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
655 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
656 |
|
4890 | 657 |
(* basic components *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
658 |
|
12247 | 659 |
val ancestry = map (length o flat o map #fields) (Library.prefixes1 parents); |
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
660 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
661 |
val parent_fields = flat (map #fields parents); |
4890 | 662 |
val parent_names = map fst parent_fields; |
663 |
val parent_types = map snd parent_fields; |
|
664 |
val parent_len = length parent_fields; |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
665 |
val parent_xs = variantlist (map (base o fst) parent_fields, [moreN, rN]); |
4890 | 666 |
val parent_vars = ListPair.map Free (parent_xs, parent_types); |
4894 | 667 |
val parent_named_vars = parent_names ~~ parent_vars; |
4890 | 668 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
669 |
val fields = map (apfst full) bfields; |
4890 | 670 |
val names = map fst fields; |
671 |
val types = map snd fields; |
|
672 |
val len = length fields; |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
673 |
val xs = variantlist (map fst bfields, moreN :: rN :: parent_xs); |
4890 | 674 |
val vars = ListPair.map Free (xs, types); |
4894 | 675 |
val named_vars = names ~~ vars; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
676 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
677 |
val all_fields = parent_fields @ fields; |
4890 | 678 |
val all_names = parent_names @ names; |
679 |
val all_types = parent_types @ types; |
|
680 |
val all_len = parent_len + len; |
|
681 |
val all_xs = parent_xs @ xs; |
|
682 |
val all_vars = parent_vars @ vars; |
|
4894 | 683 |
val all_named_vars = parent_named_vars @ named_vars; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
684 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
685 |
val zeta = variant alphas "'z"; |
11940 | 686 |
val moreT = TFree (zeta, HOLogic.termS); |
4895 | 687 |
val more = Free (moreN, moreT); |
5197 | 688 |
val full_moreN = full moreN; |
689 |
fun more_part t = mk_more t full_moreN; |
|
690 |
fun more_part_update t x = mk_more_update t (full_moreN, x); |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
691 |
val all_types_more = all_types @ [moreT]; |
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
692 |
val all_xs_more = all_xs @ [moreN]; |
4894 | 693 |
|
694 |
val parent_more = funpow parent_len mk_snd; |
|
695 |
val idxs = 0 upto (len - 1); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
696 |
|
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
697 |
val parentT = if null parent_fields then [] else [mk_recordT (parent_fields, HOLogic.unitT)]; |
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
698 |
val r_parent = if null parent_fields then [] else [Free (rN, hd parentT)]; |
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
699 |
|
12247 | 700 |
fun rec_schemeT n = mk_recordT (prune n all_fields, moreT); |
701 |
fun rec_scheme n = mk_record (prune n all_named_vars, more); |
|
702 |
fun recT n = mk_recordT (prune n all_fields, HOLogic.unitT); |
|
12255 | 703 |
fun rec_ n = mk_record (prune n all_named_vars, HOLogic.unit); |
12247 | 704 |
fun r_scheme n = Free (rN, rec_schemeT n); |
705 |
fun r n = Free (rN, recT n); |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
706 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
707 |
|
4890 | 708 |
(* prepare print translation functions *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
709 |
|
5698 | 710 |
val field_tr's = |
711 |
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
|
712 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
713 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
714 |
(* prepare declarations *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
715 |
|
12247 | 716 |
val sel_decls = map (mk_selC (rec_schemeT 0)) bfields @ |
717 |
[mk_moreC (rec_schemeT 0) (moreN, moreT)]; |
|
718 |
val update_decls = map (mk_updateC (rec_schemeT 0)) bfields @ |
|
719 |
[mk_more_updateC (rec_schemeT 0) (moreN, moreT)]; |
|
720 |
val make_decl = (makeN, parentT ---> types ---> recT 0); |
|
721 |
val extend_decl = (extendN, recT 0 --> moreT --> rec_schemeT 0); |
|
722 |
val truncate_decl = (truncateN, rec_schemeT 0 --> recT 0); |
|
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 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
725 |
(* prepare definitions *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
726 |
|
4895 | 727 |
(*record (scheme) type abbreviation*) |
4890 | 728 |
val recordT_specs = |
12247 | 729 |
[(suffix schemeN bname, alphas @ [zeta], rec_schemeT 0, Syntax.NoSyn), |
730 |
(bname, alphas, recT 0, Syntax.NoSyn)]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
731 |
|
4894 | 732 |
(*selectors*) |
4890 | 733 |
fun mk_sel_spec (i, c) = |
12247 | 734 |
mk_sel (r_scheme 0) c :== mk_fst (funpow i mk_snd (parent_more (r_scheme 0))); |
4894 | 735 |
val sel_specs = |
736 |
ListPair.map mk_sel_spec (idxs, names) @ |
|
12247 | 737 |
[more_part (r_scheme 0) :== funpow len mk_snd (parent_more (r_scheme 0))]; |
4890 | 738 |
|
739 |
(*updates*) |
|
12247 | 740 |
val all_sels = mk_named_sels all_names (r_scheme 0); |
4890 | 741 |
fun mk_upd_spec (i, (c, x)) = |
12247 | 742 |
mk_update (r_scheme 0) (c, x) :== |
743 |
mk_record (nth_update (c, x) (parent_len + i, all_sels), more_part (r_scheme 0)) |
|
5197 | 744 |
val update_specs = |
745 |
ListPair.map mk_upd_spec (idxs, named_vars) @ |
|
12247 | 746 |
[more_part_update (r_scheme 0) more :== mk_record (all_sels, more)]; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
747 |
|
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
748 |
(*derived operations*) |
12247 | 749 |
val make_spec = Const (full makeN, parentT ---> types ---> recT 0) $$ r_parent $$ vars :== |
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
750 |
mk_record (flat (map (mk_named_sels parent_names) r_parent) @ named_vars, HOLogic.unit); |
12247 | 751 |
val extend_spec = Const (full extendN, recT 0 --> moreT --> rec_schemeT 0) $ r 0 $ more :== |
752 |
mk_record (mk_named_sels all_names (r 0), more); |
|
753 |
val truncate_spec = Const (full truncateN, rec_schemeT 0 --> recT 0) $ r_scheme 0 :== |
|
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
754 |
mk_record (all_sels, HOLogic.unit); |
4894 | 755 |
|
756 |
||
757 |
(* prepare propositions *) |
|
758 |
||
759 |
(*selectors*) |
|
760 |
val sel_props = |
|
12247 | 761 |
map (fn (c, x) => mk_sel (rec_scheme 0) c === x) named_vars @ |
762 |
[more_part (rec_scheme 0) === more]; |
|
4894 | 763 |
|
764 |
(*updates*) |
|
765 |
fun mk_upd_prop (i, (c, T)) = |
|
766 |
let val x' = Free (variant all_xs (base c ^ "'"), T) in |
|
12247 | 767 |
mk_update (rec_scheme 0) (c, x') === |
4894 | 768 |
mk_record (nth_update (c, x') (parent_len + i, all_named_vars), more) |
769 |
end; |
|
5197 | 770 |
val update_props = |
771 |
ListPair.map mk_upd_prop (idxs, fields) @ |
|
772 |
let val more' = Free (variant all_xs (moreN ^ "'"), moreT) |
|
12247 | 773 |
in [more_part_update (rec_scheme 0) more' === mk_record (all_named_vars, more')] end; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
774 |
|
9626 | 775 |
(*equality*) |
776 |
fun mk_sel_eq (t, T) = |
|
12247 | 777 |
let val t' = Term.abstract_over (r_scheme 0, t) |
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
778 |
in Trueprop (HOLogic.eq_const T $ Term.incr_boundvars 1 t' $ t') end; |
12247 | 779 |
val sel_eqs = map2 mk_sel_eq |
780 |
(map (mk_sel (r_scheme 0)) all_names @ [more_part (r_scheme 0)], all_types @ [moreT]); |
|
9626 | 781 |
val equality_prop = |
12247 | 782 |
Term.all (rec_schemeT 0) $ (Abs ("r", rec_schemeT 0, |
783 |
Term.all (rec_schemeT 0) $ (Abs ("r'", rec_schemeT 0, |
|
9626 | 784 |
Logic.list_implies (sel_eqs, |
12247 | 785 |
Trueprop (HOLogic.eq_const (rec_schemeT 0) $ Bound 1 $ Bound 0)))))); |
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
786 |
|
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
787 |
(*induct*) |
12247 | 788 |
fun induct_scheme_prop n = |
789 |
let val P = Free ("P", rec_schemeT n --> HOLogic.boolT) in |
|
790 |
(All (prune n all_xs_more ~~ prune n all_types_more) |
|
791 |
(Trueprop (P $ rec_scheme n)), Trueprop (P $ r_scheme n)) |
|
792 |
end; |
|
793 |
fun induct_prop n = |
|
794 |
let val P = Free ("P", recT n --> HOLogic.boolT) in |
|
795 |
(All (prune n all_xs ~~ prune n all_types) (Trueprop (P $ rec_ n)), Trueprop (P $ r n)) |
|
796 |
end; |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
797 |
|
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
798 |
(*cases*) |
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
799 |
val C = Trueprop (Free (variant all_xs_more "C", HOLogic.boolT)); |
12247 | 800 |
fun cases_scheme_prop n = |
801 |
All (prune n all_xs_more ~~ prune n all_types_more) |
|
802 |
((r_scheme n === rec_scheme n) ==> C) ==> C; |
|
12255 | 803 |
fun cases_prop n = All (prune n all_xs ~~ prune n all_types) ((r n === rec_ n) ==> C) ==> C; |
9626 | 804 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
805 |
|
4890 | 806 |
(* 1st stage: fields_thy *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
807 |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
808 |
val (fields_thy, field_simps, field_injects, field_splits, field_inducts, field_cases) = |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
809 |
thy |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
810 |
|> Theory.add_path bname |
11832 | 811 |
|> field_definitions fields names xs alphas zeta moreT more vars named_vars; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
812 |
|
12247 | 813 |
val all_field_inducts = flat (map #field_inducts parents) @ field_inducts; |
814 |
val all_field_cases = flat (map #field_cases parents) @ field_cases; |
|
815 |
||
6092 | 816 |
val named_splits = map2 (fn (c, th) => (suffix field_typeN c, th)) (names, field_splits); |
5698 | 817 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
818 |
|
4890 | 819 |
(* 2nd stage: defs_thy *) |
820 |
||
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
821 |
val (defs_thy, (((sel_defs, update_defs), derived_defs))) = |
4890 | 822 |
fields_thy |
9626 | 823 |
|> add_record_splits named_splits |
4890 | 824 |
|> Theory.parent_path |
12255 | 825 |
|> Theory.add_tyabbrs_i recordT_specs |
4890 | 826 |
|> Theory.add_path bname |
5197 | 827 |
|> Theory.add_trfuns ([], [], field_tr's, []) |
4894 | 828 |
|> (Theory.add_consts_i o map Syntax.no_syn) |
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
829 |
(sel_decls @ update_decls @ [make_decl, extend_decl, truncate_decl]) |
11832 | 830 |
|> (PureThy.add_defs_i false o map Thm.no_attributes) sel_specs |
831 |
|>>> (PureThy.add_defs_i false o map Thm.no_attributes) update_specs |
|
11934
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
832 |
|>>> (PureThy.add_defs_i false o map Thm.no_attributes) |
6c1bf72430b6
derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents:
11927
diff
changeset
|
833 |
[make_spec, extend_spec, truncate_spec]; |
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
834 |
|
4890 | 835 |
|
836 |
(* 3rd stage: thms_thy *) |
|
837 |
||
12247 | 838 |
val prove_standard = Tactic.prove_standard (Theory.sign_of defs_thy); |
11967 | 839 |
fun prove_simp simps = |
840 |
let val tac = simp_all_tac HOL_basic_ss simps |
|
841 |
in fn prop => prove_standard [] [] prop (K tac) end; |
|
4890 | 842 |
|
11967 | 843 |
val parent_simps = flat (map #simps parents); |
844 |
val sel_convs = map (prove_simp (parent_simps @ sel_defs @ field_simps)) sel_props; |
|
845 |
val update_convs = map (prove_simp (parent_simps @ update_defs @ sel_convs)) update_props; |
|
4894 | 846 |
|
12247 | 847 |
fun induct_scheme n = |
848 |
let val (assm, concl) = induct_scheme_prop n in |
|
849 |
prove_standard [] [assm] concl (fn prems => |
|
850 |
EVERY (map (fn rule => try_param_tac "p" rN rule 1) (prune n all_field_inducts)) |
|
851 |
THEN resolve_tac prems 1) |
|
852 |
end; |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
853 |
|
12247 | 854 |
fun cases_scheme n = |
855 |
prove_standard [] [] (cases_scheme_prop n) (fn _ => |
|
856 |
EVERY (map (fn rule => try_param_tac "p" rN rule 1) (prune n all_field_cases)) |
|
11967 | 857 |
THEN simp_all_tac HOL_basic_ss []); |
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
858 |
|
12247 | 859 |
val induct_scheme0 = induct_scheme 0; |
860 |
val cases_scheme0 = cases_scheme 0; |
|
861 |
val more_induct_scheme = map induct_scheme ancestry; |
|
862 |
val more_cases_scheme = map cases_scheme ancestry; |
|
11927
96f267adc029
provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents:
11923
diff
changeset
|
863 |
|
12247 | 864 |
val (thms_thy, (([sel_convs', update_convs', sel_defs', update_defs', _], |
865 |
[induct_scheme', cases_scheme']), [more_induct_scheme', more_cases_scheme'])) = |
|
11940 | 866 |
defs_thy |
867 |
|> (PureThy.add_thmss o map Thm.no_attributes) |
|
868 |
[("select_convs", sel_convs), |
|
869 |
("update_convs", update_convs), |
|
870 |
("select_defs", sel_defs), |
|
871 |
("update_defs", update_defs), |
|
872 |
("derived_defs", derived_defs)] |
|
873 |
|>>> PureThy.add_thms |
|
12255 | 874 |
[(("induct_scheme", induct_scheme0), induct_type_global (suffix schemeN name)), |
875 |
(("cases_scheme", cases_scheme0), cases_type_global (suffix schemeN name))] |
|
876 |
|>>> PureThy.add_thmss |
|
877 |
[(("more_induct_scheme", more_induct_scheme), induct_type_global ""), |
|
878 |
(("more_cases_scheme", more_cases_scheme), cases_type_global "")]; |
|
12247 | 879 |
|
880 |
||
881 |
(* 4th stage: more_thms_thy *) |
|
882 |
||
883 |
val prove_standard = Tactic.prove_standard (Theory.sign_of thms_thy); |
|
11940 | 884 |
|
12247 | 885 |
fun induct (n, scheme) = |
886 |
let val (assm, concl) = induct_prop n in |
|
887 |
prove_standard [] [assm] concl (fn prems => |
|
888 |
res_inst_tac [(rN, rN)] scheme 1 |
|
889 |
THEN try_param_tac "x" "more" unit_induct 1 |
|
890 |
THEN resolve_tac prems 1) |
|
891 |
end; |
|
892 |
||
893 |
fun cases (n, scheme) = |
|
894 |
prove_standard [] [] (cases_prop n) (fn _ => |
|
895 |
res_inst_tac [(rN, rN)] scheme 1 |
|
896 |
THEN simp_all_tac HOL_basic_ss [unit_all_eq1]); |
|
897 |
||
898 |
val induct0 = induct (0, induct_scheme'); |
|
899 |
val cases0 = cases (0, cases_scheme'); |
|
900 |
val more_induct = map induct (ancestry ~~ more_induct_scheme'); |
|
901 |
val more_cases = map cases (ancestry ~~ more_cases_scheme'); |
|
902 |
||
903 |
val equality = prove_standard [] [] equality_prop (fn _ => |
|
11967 | 904 |
fn st => let val [r, r'] = map #1 (rev (Tactic.innermost_params 1 st)) in |
905 |
st |> (res_inst_tac [(rN, r)] cases_scheme' 1 |
|
906 |
THEN res_inst_tac [(rN, r')] cases_scheme' 1 |
|
907 |
THEN simp_all_tac HOL_basic_ss (parent_simps @ sel_convs)) |
|
908 |
end); |
|
909 |
||
12247 | 910 |
val (more_thms_thy, [_, _, equality']) = |
911 |
thms_thy |> PureThy.add_thms |
|
12255 | 912 |
[(("induct", induct0), induct_type_global name), |
913 |
(("cases", cases0), cases_type_global name), |
|
12247 | 914 |
(("equality", equality), [Classical.xtra_intro_global])] |
12255 | 915 |
|>> (#1 oo PureThy.add_thmss) |
916 |
[(("more_induct", more_induct), induct_type_global ""), |
|
917 |
(("more_cases", more_cases), cases_type_global "")]; |
|
11967 | 918 |
|
11959 | 919 |
val simps = sel_convs' @ update_convs' @ [equality']; |
6519 | 920 |
val iffs = field_injects; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
921 |
|
12247 | 922 |
val more_thms_thy' = |
923 |
more_thms_thy |> (#1 oo PureThy.add_thmss) |
|
5707 | 924 |
[(("simps", simps), [Simplifier.simp_add_global]), |
6519 | 925 |
(("iffs", iffs), [iff_add_global])]; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
926 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
927 |
|
12247 | 928 |
(* 5th stage: final_thy *) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
929 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
930 |
val final_thy = |
12247 | 931 |
more_thms_thy' |
932 |
|> put_record name (make_record_info args parent fields field_inducts field_cases |
|
933 |
(field_simps @ simps)) |
|
11940 | 934 |
|> put_sel_upd (names @ [full_moreN]) (field_simps @ sel_defs' @ update_defs') |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
935 |
|> Theory.parent_path; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
936 |
|
6519 | 937 |
in (final_thy, {simps = simps, iffs = iffs}) end; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
938 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
939 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
940 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
941 |
(** theory extender interface **) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
942 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
943 |
(* prepare arguments *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
944 |
|
4894 | 945 |
(*note: read_raw_typ avoids expanding type abbreviations*) |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
946 |
fun read_raw_parent sign s = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
947 |
(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
|
948 |
Type (name, Ts) => (Ts, name) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
949 |
| _ => error ("Bad parent record specification: " ^ quote s)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
950 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
951 |
fun read_typ sign (env, s) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
952 |
let |
5060 | 953 |
fun def_sort (x, ~1) = assoc (env, x) |
954 |
| def_sort _ = None; |
|
955 |
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
|
956 |
in (Term.add_typ_tfrees (T, env), T) end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
957 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
958 |
fun cert_typ sign (env, raw_T) = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
959 |
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
|
960 |
in (Term.add_typ_tfrees (T, env), T) end; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
961 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
962 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
963 |
(* add_record *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
964 |
|
4895 | 965 |
(*we do all preparations and error checks here, deferring the real |
966 |
work to record_definition*) |
|
4890 | 967 |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
968 |
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
|
969 |
let |
4970 | 970 |
val _ = Theory.requires thy "Record" "record definitions"; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
971 |
val sign = Theory.sign_of thy; |
5698 | 972 |
val _ = message ("Defining record " ^ quote bname ^ " ..."); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
973 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
974 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
975 |
(* parents *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
976 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
977 |
fun prep_inst T = snd (cert_typ sign ([], T)); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
978 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
979 |
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
|
980 |
handle ERROR => error ("The error(s) above in parent record specification"); |
12247 | 981 |
val parents = add_parents thy parent []; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
982 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
983 |
val init_env = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
984 |
(case parent of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
985 |
None => [] |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
986 |
| Some (types, _) => foldr Term.add_typ_tfrees (types, [])); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
987 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
988 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
989 |
(* fields *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
990 |
|
4967 | 991 |
fun prep_field (env, (c, raw_T)) = |
992 |
let val (env', T) = prep_typ sign (env, raw_T) handle ERROR => |
|
993 |
error ("The error(s) above occured in field " ^ quote c) |
|
994 |
in (env', (c, T)) end; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
995 |
|
4967 | 996 |
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
|
997 |
val envir_names = map fst envir; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
998 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
999 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1000 |
(* args *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1001 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1002 |
val defaultS = Sign.defaultS sign; |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1003 |
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
|
1004 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1005 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1006 |
(* errors *) |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1007 |
|
4890 | 1008 |
val name = Sign.full_name sign bname; |
1009 |
val err_dup_record = |
|
1010 |
if is_none (get_record thy name) then [] |
|
1011 |
else ["Duplicate definition of record " ^ quote name]; |
|
1012 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1013 |
val err_dup_parms = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1014 |
(case duplicates params of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1015 |
[] => [] |
4890 | 1016 |
| dups => ["Duplicate parameter(s) " ^ commas dups]); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1017 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1018 |
val err_extra_frees = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1019 |
(case gen_rems (op =) (envir_names, params) of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1020 |
[] => [] |
4890 | 1021 |
| extras => ["Extra free type variable(s) " ^ commas extras]); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1022 |
|
4890 | 1023 |
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
|
1024 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1025 |
val err_dup_fields = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1026 |
(case duplicates (map fst bfields) of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1027 |
[] => [] |
4890 | 1028 |
| dups => ["Duplicate field(s) " ^ commas_quote dups]); |
1029 |
||
1030 |
val err_bad_fields = |
|
1031 |
if forall (not_equal moreN o fst) bfields then [] |
|
1032 |
else ["Illegal field name " ^ quote moreN]; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1033 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1034 |
val err_dup_sorts = |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1035 |
(case duplicates envir_names of |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1036 |
[] => [] |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1037 |
| dups => ["Inconsistent sort constraints for " ^ commas dups]); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1038 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1039 |
val errs = |
4890 | 1040 |
err_dup_record @ err_dup_parms @ err_extra_frees @ err_no_fields @ |
1041 |
err_dup_fields @ err_bad_fields @ err_dup_sorts; |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1042 |
in |
4890 | 1043 |
if null errs then () else error (cat_lines errs); |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1044 |
thy |> record_definition (args, bname) parent parents bfields |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1045 |
end |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1046 |
handle ERROR => error ("Failed to define record " ^ quote bname); |
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1047 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1048 |
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
|
1049 |
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
|
1050 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1051 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1052 |
|
6358 | 1053 |
(** package setup **) |
1054 |
||
1055 |
(* setup theory *) |
|
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1056 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1057 |
val setup = |
5006 | 1058 |
[RecordsData.init, |
11490
f9ae28f55178
field_name_ast_tr superceded by constify_ast_tr in Pure;
wenzelm
parents:
11473
diff
changeset
|
1059 |
Theory.add_trfuns ([], parse_translation, [], []), |
6358 | 1060 |
Method.add_methods [record_split_method], |
7178 | 1061 |
Simplifier.change_simpset_of Simplifier.addsimprocs [record_simproc]]; |
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1062 |
|
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1063 |
|
6358 | 1064 |
(* outer syntax *) |
1065 |
||
6723 | 1066 |
local structure P = OuterParse and K = OuterSyntax.Keyword in |
6358 | 1067 |
|
1068 |
val record_decl = |
|
6723 | 1069 |
P.type_args -- P.name -- (P.$$$ "=" |-- Scan.option (P.typ --| P.$$$ "+") |
6729 | 1070 |
-- Scan.repeat1 (P.name -- (P.$$$ "::" |-- P.typ) --| P.marg_comment)); |
6358 | 1071 |
|
1072 |
val recordP = |
|
6723 | 1073 |
OuterSyntax.command "record" "define extensible record" K.thy_decl |
6519 | 1074 |
(record_decl >> (fn (x, (y, z)) => Toplevel.theory (#1 o add_record x y z))); |
6358 | 1075 |
|
1076 |
val _ = OuterSyntax.add_parsers [recordP]; |
|
1077 |
||
4867
9be2bf0ce909
package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff
changeset
|
1078 |
end; |
5698 | 1079 |
|
6384 | 1080 |
end; |
1081 |
||
5698 | 1082 |
structure BasicRecordPackage: BASIC_RECORD_PACKAGE = RecordPackage; |
1083 |
open BasicRecordPackage; |