author | wenzelm |
Thu, 11 Oct 2007 16:05:23 +0200 | |
changeset 24959 | 119793c84647 |
parent 24949 | 5f00e3532418 |
child 24983 | f2f4ba67cef1 |
permissions | -rw-r--r-- |
20894 | 1 |
(* Title: Pure/Isar/theory_target.ML |
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ID: $Id$ |
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Author: Makarius |
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Common theory/locale/class targets. |
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*) |
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signature THEORY_TARGET = |
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sig |
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21006 | 10 |
val peek: local_theory -> string option |
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val begin: string -> Proof.context -> local_theory |
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val init: string option -> theory -> local_theory |
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val init_cmd: xstring option -> theory -> local_theory |
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end; |
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structure TheoryTarget: THEORY_TARGET = |
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struct |
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(** locale targets **) |
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21006 | 21 |
(* context data *) |
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structure Data = ProofDataFun |
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( |
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type T = string option; |
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fun init _ = NONE; |
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); |
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val peek = Data.get; |
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20894 | 32 |
(* pretty *) |
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fun pretty loc ctxt = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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24939 | 37 |
val loc_kind = if is_some (Class.class_of_locale thy loc) then "class" else "locale"; |
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val loc_name = Locale.extern thy loc; |
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val fixes = map (fn (x, T) => (x, SOME T, NoSyn)) (#1 (ProofContext.inferred_fixes ctxt)); |
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val assumes = map (fn A => (("", []), [(A, [])])) (map Thm.term_of (Assumption.assms_of ctxt)); |
20894 | 42 |
val elems = |
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(if null fixes then [] else [Element.Fixes fixes]) @ |
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(if null assumes then [] else [Element.Assumes assumes]); |
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45 |
in |
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24939 | 46 |
Pretty.block [Pretty.str "theory", Pretty.brk 1, Pretty.str (Context.theory_name thy)] :: |
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(if loc = "" then [] |
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48 |
else if null elems then [Pretty.str (loc_kind ^ " " ^ loc_name)] |
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else [Pretty.big_list (loc_kind ^ " " ^ loc_name ^ " =") |
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(map (Pretty.chunks o Element.pretty_ctxt ctxt) elems)]) |
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20894 | 51 |
end; |
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24838 | 54 |
(* target declarations *) |
55 |
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56 |
fun target_decl add loc d lthy = |
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let |
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val d' = Morphism.transform (LocalTheory.target_morphism lthy) d; |
24838 | 59 |
val d0 = Morphism.form d'; |
60 |
in |
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61 |
if loc = "" then |
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lthy |
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|> LocalTheory.theory (Context.theory_map d0) |
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|> LocalTheory.target (Context.proof_map d0) |
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else |
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lthy |
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|> LocalTheory.target (add loc d') |
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end; |
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val type_syntax = target_decl Locale.add_type_syntax; |
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val term_syntax = target_decl Locale.add_term_syntax; |
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val declaration = target_decl Locale.add_declaration; |
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fun target_naming loc lthy = |
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(if loc = "" then Sign.naming_of (ProofContext.theory_of lthy) |
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else ProofContext.naming_of (LocalTheory.target_of lthy)) |
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|> NameSpace.qualified_names; |
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20894 | 81 |
(* notes *) |
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||
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fun import_export_proof ctxt (name, raw_th) = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val thy_ctxt = ProofContext.init thy; |
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val certT = Thm.ctyp_of thy; |
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val cert = Thm.cterm_of thy; |
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(*export assumes/defines*) |
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val th = Goal.norm_result raw_th; |
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val (defs, th') = LocalDefs.export ctxt thy_ctxt th; |
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val concl_conv = MetaSimplifier.rewrite true defs (Thm.cprop_of th); |
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val assms = map (MetaSimplifier.rewrite_rule defs o Thm.assume) (Assumption.assms_of ctxt); |
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val nprems = Thm.nprems_of th' - Thm.nprems_of th; |
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(*export fixes*) |
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val tfrees = map TFree (Thm.fold_terms Term.add_tfrees th' []); |
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val frees = map Free (Thm.fold_terms Term.add_frees th' []); |
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val (th'' :: vs) = (th' :: map (Drule.mk_term o cert) (map Logic.mk_type tfrees @ frees)) |
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|> Variable.export ctxt thy_ctxt |
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|> Drule.zero_var_indexes_list; |
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(*thm definition*) |
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val result = th'' |
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|> PureThy.name_thm true true "" |
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|> Goal.close_result |
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24779 | 108 |
|> fold PureThy.tag_rule (ContextPosition.properties_of ctxt) |
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|> PureThy.name_thm true true name; |
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(*import fixes*) |
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val (tvars, vars) = |
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chop (length tfrees) (map (Thm.term_of o Drule.dest_term) vs) |
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|>> map Logic.dest_type; |
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val instT = map_filter (fn (TVar v, T) => SOME (v, T) | _ => NONE) (tvars ~~ tfrees); |
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val inst = filter (is_Var o fst) (vars ~~ frees); |
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val cinstT = map (pairself certT o apfst TVar) instT; |
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val cinst = map (pairself (cert o Term.map_types (TermSubst.instantiateT instT))) inst; |
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val result' = Thm.instantiate (cinstT, cinst) result; |
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(*import assumes/defines*) |
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val assm_tac = FIRST' (map (fn assm => Tactic.compose_tac (false, assm, 0)) assms); |
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val result'' = |
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(case SINGLE (Seq.INTERVAL assm_tac 1 nprems) result' of |
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NONE => raise THM ("Failed to re-import result", 0, [result']) |
21845 | 127 |
| SOME res => LocalDefs.trans_props ctxt [res, Thm.symmetric concl_conv]) |
21644 | 128 |
|> Goal.norm_result |
129 |
|> PureThy.name_thm false false name; |
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in (result'', result) end; |
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132 |
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24939 | 133 |
fun local_notes loc kind facts lthy = |
21585 | 134 |
let |
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val is_loc = loc <> ""; |
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val thy = ProofContext.theory_of lthy; |
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val full = LocalTheory.full_name lthy; |
21585 | 138 |
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val facts' = facts |
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|> map (fn (a, bs) => (a, PureThy.burrow_fact (PureThy.name_multi (full (fst a))) bs)) |
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|> PureThy.map_facts (import_export_proof lthy); |
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val local_facts = PureThy.map_facts #1 facts' |
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|> Attrib.map_facts (Attrib.attribute_i thy); |
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val target_facts = PureThy.map_facts #1 facts' |
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|> is_loc ? Element.facts_map (Element.morph_ctxt (LocalTheory.target_morphism lthy)); |
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val global_facts = PureThy.map_facts #2 facts' |
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|> Attrib.map_facts (if is_loc then K I else Attrib.attribute_i thy); |
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148 |
in |
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149 |
lthy |> LocalTheory.theory |
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150 |
(Sign.qualified_names |
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#> PureThy.note_thmss_i kind global_facts #> snd |
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#> Sign.restore_naming thy) |
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|> is_loc ? LocalTheory.target (Locale.add_thmss loc kind target_facts) |
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20894 | 156 |
|> ProofContext.qualified_names |
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|> ProofContext.note_thmss_i kind local_facts |
20894 | 158 |
||> ProofContext.restore_naming lthy |
159 |
end; |
|
160 |
||
161 |
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24939 | 162 |
(* consts *) |
163 |
||
164 |
fun target_abbrev prmode ((c, mx), rhs) phi = |
|
165 |
let |
|
166 |
val c' = Morphism.name phi c; |
|
167 |
val rhs' = Morphism.term phi rhs; |
|
168 |
val arg' = (c', rhs'); |
|
169 |
val eq_heads = |
|
170 |
(case pairself Term.head_of (rhs, rhs') of |
|
171 |
(Const (a, _), Const (a', _)) => a = a' |
|
172 |
| _ => false); |
|
173 |
in |
|
174 |
eq_heads ? (Context.mapping_result |
|
175 |
(Sign.add_abbrev Syntax.internalM [] arg') (ProofContext.add_abbrev Syntax.internalM [] arg') |
|
176 |
#-> (fn (lhs, _) => |
|
177 |
Term.equiv_types (rhs, rhs') ? |
|
24949 | 178 |
Morphism.form (ProofContext.target_notation true prmode [(lhs, mx)]))) |
24939 | 179 |
end; |
180 |
||
181 |
fun internal_abbrev loc prmode ((c, mx), t) lthy = lthy |
|
182 |
(* FIXME really permissive *) |
|
183 |
|> term_syntax loc (perhaps o try o target_abbrev prmode ((c, mx), t)) |
|
184 |
|> ProofContext.add_abbrev Syntax.internalM (ContextPosition.properties_of lthy) (c, t) |
|
185 |
|> snd; |
|
186 |
||
187 |
fun declare_consts loc depends decls lthy = |
|
188 |
let |
|
189 |
val thy = ProofContext.theory_of lthy; |
|
190 |
val is_loc = loc <> ""; |
|
191 |
val some_class = Class.class_of_locale thy loc; |
|
192 |
||
193 |
val xs = filter depends (#1 (ProofContext.inferred_fixes (LocalTheory.target_of lthy))); |
|
194 |
||
195 |
fun const ((c, T), mx) thy = |
|
196 |
let |
|
197 |
val U = map #2 xs ---> T; |
|
198 |
val (mx1, mx2) = Class.fork_mixfix is_loc some_class mx; |
|
199 |
val mx3 = if is_loc then NoSyn else mx1; |
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200 |
val (const, thy') = Sign.declare_const (ContextPosition.properties_of lthy) (c, U, mx3) thy; |
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201 |
val t = Term.list_comb (const, map Free xs); |
24939 | 202 |
in (((c, mx2), t), thy') end; |
203 |
fun const_class (SOME class) ((c, _), mx) (_, t) = |
|
204 |
LocalTheory.raw_theory_result (Class.add_const_in_class class ((c, t), mx)) |
|
205 |
#-> Class.remove_constraint [class] |
|
206 |
| const_class NONE _ _ = I; |
|
207 |
fun hide_abbrev (SOME class) abbrs thy = |
|
208 |
let |
|
209 |
val raw_cs = map (fst o fst) abbrs; |
|
210 |
val prfx = (Logic.const_of_class o NameSpace.base) class; |
|
211 |
fun mk_name c = |
|
212 |
let |
|
213 |
val n1 = Sign.full_name thy c; |
|
214 |
val n2 = NameSpace.qualifier n1; |
|
215 |
val n3 = NameSpace.base n1; |
|
216 |
in NameSpace.implode [n2, prfx, prfx, n3] end; |
|
217 |
val cs = map mk_name raw_cs; |
|
218 |
in |
|
219 |
Sign.hide_consts_i true cs thy |
|
220 |
end |
|
221 |
| hide_abbrev NONE _ thy = thy; |
|
222 |
||
223 |
val (abbrs, lthy') = lthy |
|
224 |
|> LocalTheory.theory_result (fold_map const decls) |
|
225 |
val defs = map (apsnd (pair ("", []))) abbrs; |
|
226 |
||
227 |
in |
|
228 |
lthy' |
|
229 |
|> fold2 (const_class some_class) decls abbrs |
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230 |
|> is_loc ? fold (internal_abbrev loc Syntax.mode_default) abbrs |
24939 | 231 |
|> LocalTheory.raw_theory (hide_abbrev some_class abbrs) |
232 |
(*FIXME abbreviations should never occur*) |
|
233 |
|> LocalDefs.add_defs defs |
|
234 |
|>> map (apsnd snd) |
|
235 |
end; |
|
236 |
||
237 |
||
238 |
(* abbrev *) |
|
239 |
||
240 |
fun occ_params ctxt ts = |
|
241 |
#1 (ProofContext.inferred_fixes ctxt) |
|
242 |
|> filter (member (op =) (fold (Variable.add_fixed ctxt) ts [])); |
|
243 |
||
244 |
fun local_abbrev (x, rhs) = |
|
245 |
Variable.add_fixes [x] #-> (fn [x'] => |
|
246 |
let |
|
247 |
val T = Term.fastype_of rhs; |
|
248 |
val lhs = Free (x', T); |
|
249 |
in |
|
250 |
Variable.declare_term lhs #> |
|
251 |
Variable.declare_term rhs #> |
|
252 |
Assumption.add_assms (K (K (I, Envir.expand_term_frees [((x', T), rhs)]))) [] #> snd #> |
|
253 |
pair (lhs, rhs) |
|
254 |
end); |
|
255 |
||
256 |
fun abbrev loc prmode ((raw_c, mx), raw_t) lthy = |
|
257 |
let |
|
258 |
val thy = ProofContext.theory_of lthy; |
|
259 |
val is_loc = loc <> ""; |
|
260 |
val some_class = Class.class_of_locale thy loc; |
|
261 |
||
262 |
val thy_ctxt = ProofContext.init thy; |
|
263 |
val target = LocalTheory.target_of lthy; |
|
264 |
val target_morphism = LocalTheory.target_morphism lthy; |
|
265 |
||
266 |
val c = Morphism.name target_morphism raw_c; |
|
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val t = Morphism.term target_morphism raw_t; |
|
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val xs = map Free (occ_params target [t]); |
|
269 |
val u = fold_rev Term.lambda xs t; |
|
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val U = Term.fastype_of u; |
|
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val u' = singleton (Variable.export_terms (Variable.declare_term u target) thy_ctxt) u; |
|
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val (mx1, mx2) = Class.fork_mixfix is_loc some_class mx; |
|
273 |
val mx3 = if is_loc then NoSyn else mx1; |
|
274 |
fun add_abbrev_in_class (SOME class) abbr = |
|
275 |
LocalTheory.raw_theory_result (Class.add_abbrev_in_class class prmode abbr) |
|
276 |
#-> (fn c => Class.remove_constraint [class] c) |
|
277 |
| add_abbrev_in_class NONE _ = I; |
|
278 |
in |
|
279 |
lthy |
|
280 |
|> LocalTheory.theory_result |
|
281 |
(Sign.add_abbrev (#1 prmode) (ContextPosition.properties_of lthy) (c, u')) |
|
24949 | 282 |
|-> (fn (lhs as Const (full_c, _), rhs) => |
283 |
LocalTheory.theory (Sign.notation true prmode [(lhs, mx3)]) |
|
284 |
#> is_loc ? internal_abbrev loc prmode ((c, mx2), Term.list_comb (Const (full_c, U), xs)) |
|
285 |
#> add_abbrev_in_class some_class ((c, Term.list_comb (Const (full_c, U), xs)), mx1) |
|
286 |
#> local_abbrev (c, rhs)) |
|
24939 | 287 |
end; |
288 |
||
289 |
||
290 |
(* defs *) |
|
291 |
||
292 |
local |
|
293 |
||
294 |
fun expand_term ctxt t = |
|
295 |
let |
|
296 |
val thy = ProofContext.theory_of ctxt; |
|
297 |
val thy_ctxt = ProofContext.init thy; |
|
298 |
val ct = Thm.cterm_of thy t; |
|
299 |
val (defs, ct') = LocalDefs.export ctxt thy_ctxt (Drule.mk_term ct) ||> Drule.dest_term; |
|
300 |
in (Thm.term_of ct', MetaSimplifier.rewrite true defs ct) end; |
|
301 |
||
302 |
fun add_def (name, prop) thy = |
|
303 |
let |
|
304 |
val tfrees = rev (map TFree (Term.add_tfrees prop [])); |
|
305 |
val tfrees' = map (fn a => TFree (a, [])) (Name.invents Name.context Name.aT (length tfrees)); |
|
306 |
val strip_sorts = tfrees ~~ tfrees'; |
|
307 |
val recover_sorts = map (pairself (Thm.ctyp_of thy o Logic.varifyT)) (tfrees' ~~ tfrees); |
|
308 |
||
309 |
val prop' = Term.map_types (Term.map_atyps (perhaps (AList.lookup (op =) strip_sorts))) prop; |
|
310 |
val thy' = Theory.add_defs_i false false [(name, prop')] thy; |
|
311 |
val axm' = Thm.get_axiom_i thy' (Sign.full_name thy' name); |
|
312 |
val def = Thm.instantiate (recover_sorts, []) axm'; |
|
313 |
in (Drule.unvarify def, thy') end; |
|
314 |
||
315 |
in |
|
316 |
||
317 |
fun local_def loc kind ((c, mx), ((name, atts), rhs)) lthy1 = |
|
318 |
let |
|
319 |
val (rhs', rhs_conv) = expand_term lthy1 rhs; |
|
320 |
val xs = Variable.add_fixed (LocalTheory.target_of lthy1) rhs' []; |
|
321 |
val T = Term.fastype_of rhs; |
|
322 |
||
323 |
(*consts*) |
|
324 |
val ([(lhs, lhs_def)], lthy2) = lthy1 |
|
325 |
|> declare_consts loc (member (op =) xs) [((c, T), mx)]; |
|
326 |
val (_, lhs') = Logic.dest_equals (Thm.prop_of lhs_def); |
|
327 |
||
328 |
(*def*) |
|
329 |
val name' = Thm.def_name_optional c name; |
|
330 |
val (def, lthy3) = lthy2 |
|
331 |
|> LocalTheory.theory_result (add_def (name', Logic.mk_equals (lhs', rhs'))); |
|
332 |
val eq = LocalDefs.trans_terms lthy3 |
|
333 |
[(*c == loc.c xs*) lhs_def, |
|
334 |
(*lhs' == rhs'*) def, |
|
335 |
(*rhs' == rhs*) Thm.symmetric rhs_conv]; |
|
336 |
||
337 |
(*notes*) |
|
338 |
val ([(res_name, [res])], lthy4) = lthy3 |
|
339 |
|> local_notes loc kind [((name', atts), [([eq], [])])]; |
|
340 |
in ((lhs, (res_name, res)), lthy4) end; |
|
341 |
||
342 |
end; |
|
343 |
||
344 |
||
345 |
(* axioms *) |
|
346 |
||
347 |
local |
|
348 |
||
349 |
fun add_axiom hyps (name, prop) thy = |
|
350 |
let |
|
351 |
val name' = if name = "" then "axiom_" ^ serial_string () else name; |
|
352 |
val prop' = Logic.list_implies (hyps, prop); |
|
353 |
val thy' = thy |> Theory.add_axioms_i [(name', prop')]; |
|
354 |
val axm = Drule.unvarify (Thm.get_axiom_i thy' (Sign.full_name thy' name')); |
|
355 |
val prems = map (Thm.assume o Thm.cterm_of thy') hyps; |
|
356 |
in (Drule.implies_elim_list axm prems, thy') end; |
|
357 |
||
358 |
in |
|
359 |
||
360 |
fun axioms loc kind specs lthy = |
|
361 |
let |
|
362 |
val hyps = map Thm.term_of (Assumption.assms_of lthy); |
|
363 |
fun axiom ((name, atts), props) thy = thy |
|
364 |
|> fold_map (add_axiom hyps) (PureThy.name_multi name props) |
|
365 |
|-> (fn ths => pair ((name, atts), [(ths, [])])); |
|
366 |
in |
|
367 |
lthy |
|
368 |
|> fold (fold Variable.declare_term o snd) specs |
|
369 |
|> LocalTheory.theory_result (fold_map axiom specs) |
|
370 |
|-> local_notes loc kind |
|
371 |
end; |
|
372 |
||
373 |
end; |
|
374 |
||
375 |
||
20894 | 376 |
(* init and exit *) |
377 |
||
22353 | 378 |
fun begin loc ctxt = |
379 |
let |
|
380 |
val thy = ProofContext.theory_of ctxt; |
|
381 |
val is_loc = loc <> ""; |
|
382 |
in |
|
383 |
ctxt |
|
384 |
|> Data.put (if is_loc then SOME loc else NONE) |
|
24939 | 385 |
|> fold Class.init (the_list (Class.class_of_locale thy loc)) |
24748 | 386 |
|> LocalTheory.init (NameSpace.base loc) |
21747 | 387 |
{pretty = pretty loc, |
24939 | 388 |
consts = declare_consts loc, |
389 |
axioms = axioms loc, |
|
390 |
abbrev = abbrev loc, |
|
391 |
def = local_def loc, |
|
392 |
notes = local_notes loc, |
|
21747 | 393 |
type_syntax = type_syntax loc, |
394 |
term_syntax = term_syntax loc, |
|
395 |
declaration = declaration loc, |
|
22203 | 396 |
target_naming = target_naming loc, |
21804 | 397 |
reinit = fn _ => |
24657 | 398 |
(if is_loc then Locale.init loc else ProofContext.init) |
399 |
#> begin loc, |
|
24935
a033971c63a0
removed LocalTheory.defs/target_morphism operations;
wenzelm
parents:
24914
diff
changeset
|
400 |
exit = LocalTheory.target_of} |
21747 | 401 |
end; |
20894 | 402 |
|
24935
a033971c63a0
removed LocalTheory.defs/target_morphism operations;
wenzelm
parents:
24914
diff
changeset
|
403 |
fun init NONE thy = begin "" (ProofContext.init thy) |
a033971c63a0
removed LocalTheory.defs/target_morphism operations;
wenzelm
parents:
24914
diff
changeset
|
404 |
| init (SOME loc) thy = begin loc (Locale.init loc thy); |
20894 | 405 |
|
24935
a033971c63a0
removed LocalTheory.defs/target_morphism operations;
wenzelm
parents:
24914
diff
changeset
|
406 |
fun init_cmd (SOME "-") thy = init NONE thy |
a033971c63a0
removed LocalTheory.defs/target_morphism operations;
wenzelm
parents:
24914
diff
changeset
|
407 |
| init_cmd loc thy = init (Option.map (Locale.intern thy) loc) thy; |
20894 | 408 |
|
409 |
end; |