refined Local_Theory.declaration {syntax = false, pervasive} semantics: update is applied to auxiliary context as well;
1 (* Title: Pure/Isar/named_target.ML
3 Author: Florian Haftmann, TU Muenchen
5 Targets for theory, locale and class.
8 signature NAMED_TARGET =
10 val init: (local_theory -> local_theory) -> string -> theory -> local_theory
11 val theory_init: theory -> local_theory
12 val reinit: local_theory -> local_theory -> local_theory
13 val context_cmd: xstring -> theory -> local_theory
14 val peek: local_theory -> {target: string, is_locale: bool, is_class: bool} option
17 structure Named_Target: NAMED_TARGET =
23 Target of {target: string, is_locale: bool, is_class: bool,
24 before_exit: local_theory -> local_theory};
26 fun make_target target is_locale is_class before_exit =
27 Target {target = target, is_locale = is_locale, is_class = is_class,
28 before_exit = before_exit};
30 fun named_target _ "" before_exit = make_target "" false false before_exit
31 | named_target thy locale before_exit =
32 if Locale.defined thy locale
33 then make_target locale true (Class.is_class thy locale) before_exit
34 else error ("No such locale: " ^ quote locale);
36 structure Data = Proof_Data
38 type T = target option;
43 Data.get #> Option.map (fn Target {target, is_locale, is_class, ...} =>
44 {target = target, is_locale = is_locale, is_class = is_class});
47 (* generic declarations *)
49 fun locale_declaration locale {syntax, pervasive} decl lthy =
51 val add = if syntax then Locale.add_syntax_declaration else Locale.add_declaration;
52 val locale_decl = Morphism.transform (Local_Theory.target_morphism lthy) decl;
55 |> pervasive ? Generic_Target.theory_declaration syntax decl
56 |> Local_Theory.target (add locale locale_decl)
57 |> not syntax ? Context.proof_map (Morphism.form decl)
60 fun target_declaration (Target {target, ...}) params =
61 if target = "" then Generic_Target.theory_declaration (#syntax params)
62 else locale_declaration target params;
65 (* consts in locales *)
67 fun locale_const (Target {target, is_class, ...}) (prmode as (mode, _)) ((b, mx), rhs) phi =
69 val b' = Morphism.binding phi b;
70 val rhs' = Morphism.term phi rhs;
71 val arg = (b', Term.close_schematic_term rhs');
72 val same_shape = Term.aconv_untyped (rhs, rhs');
73 (* FIXME workaround based on educated guess *)
74 val prefix' = Binding.prefix_of b';
75 val is_canonical_class = is_class andalso
76 (Binding.eq_name (b, b')
77 andalso not (null prefix')
78 andalso List.last prefix' = (Class.class_prefix target, false)
81 not is_canonical_class ?
82 (Context.mapping_result
83 (Sign.add_abbrev Print_Mode.internal arg)
84 (Proof_Context.add_abbrev Print_Mode.internal arg)
85 #-> (fn (lhs' as Const (d, _), _) =>
88 (Sign.revert_abbrev mode d) (Proof_Context.revert_abbrev mode d) #>
89 Morphism.form (Proof_Context.target_notation true prmode [(lhs', mx)]))))
92 fun locale_const_declaration (ta as Target {target, ...}) prmode arg =
93 locale_declaration target {syntax = true, pervasive = false} (locale_const ta prmode arg);
98 fun locale_foundation ta (((b, U), mx), (b_def, rhs)) (type_params, term_params) =
99 Generic_Target.theory_foundation (((b, U), NoSyn), (b_def, rhs)) (type_params, term_params)
100 #-> (fn (lhs, def) => locale_const_declaration ta Syntax.mode_default ((b, mx), lhs)
103 fun class_foundation (ta as Target {target, ...})
104 (((b, U), mx), (b_def, rhs)) (type_params, term_params) =
105 Generic_Target.theory_foundation (((b, U), NoSyn), (b_def, rhs)) (type_params, term_params)
106 #-> (fn (lhs, def) => locale_const_declaration ta Syntax.mode_default ((b, NoSyn), lhs)
107 #> Class.const target ((b, mx), (type_params, lhs))
110 fun target_foundation (ta as Target {is_locale, is_class, ...}) =
111 if is_class then class_foundation ta
112 else if is_locale then locale_foundation ta
113 else Generic_Target.theory_foundation;
118 fun locale_notes locale kind global_facts local_facts lthy =
120 val global_facts' = Attrib.map_facts (K I) global_facts;
121 val local_facts' = Element.facts_map
122 (Element.transform_ctxt (Local_Theory.target_morphism lthy)) local_facts;
125 |> Local_Theory.background_theory (Global_Theory.note_thmss kind global_facts' #> snd)
126 |> Local_Theory.target (Locale.add_thmss locale kind local_facts')
129 fun target_notes (Target {target, is_locale, ...}) =
130 if is_locale then locale_notes target
131 else fn kind => fn global_facts => fn _ => Generic_Target.theory_notes kind global_facts;
136 fun locale_abbrev ta prmode ((b, mx), t) xs =
137 Local_Theory.background_theory_result
138 (Sign.add_abbrev Print_Mode.internal (b, t)) #->
139 (fn (lhs, _) => locale_const_declaration ta prmode
140 ((b, mx), Term.list_comb (Logic.unvarify_global lhs, xs)));
142 fun target_abbrev (ta as Target {target, is_locale, is_class, ...})
143 prmode (b, mx) (global_rhs, t') xs lthy =
146 |> locale_abbrev ta prmode ((b, if is_class then NoSyn else mx), global_rhs) xs
147 |> is_class ? Class.abbrev target prmode ((b, mx), t')
150 |> Generic_Target.theory_abbrev prmode ((b, mx), global_rhs);
155 fun pretty (Target {target, is_locale, is_class, ...}) ctxt =
157 val thy = Proof_Context.theory_of ctxt;
159 [Pretty.command (if is_class then "class" else "locale"),
160 Pretty.str (" " ^ Locale.extern thy target)];
161 val fixes = map (fn (x, T) => (Binding.name x, SOME T, NoSyn))
162 (#1 (Proof_Context.inferred_fixes ctxt));
163 val assumes = map (fn A => (Attrib.empty_binding, [(Thm.term_of A, [])]))
164 (Assumption.all_assms_of ctxt);
166 (if null fixes then [] else [Element.Fixes fixes]) @
167 (if null assumes then [] else [Element.Assumes assumes]);
169 if not is_locale then []
170 else if null elems then [Pretty.block target_name]
171 else [Pretty.block (Pretty.fbreaks (Pretty.block (target_name @ [Pretty.str " ="]) ::
172 map (Pretty.chunks o Element.pretty_ctxt ctxt) elems))];
174 Pretty.block [Pretty.command "theory", Pretty.brk 1,
175 Pretty.str (Context.theory_name (Proof_Context.theory_of ctxt))] :: body_elems
181 fun init_context (Target {target, is_locale, is_class, ...}) =
182 if not is_locale then Proof_Context.init_global
183 else if not is_class then Locale.init target
184 else Class.init target;
186 fun init before_exit target thy =
188 val ta = named_target thy target before_exit;
192 |> Data.put (SOME ta)
193 |> Local_Theory.init NONE (Long_Name.base_name target)
194 {define = Generic_Target.define (target_foundation ta),
195 notes = Generic_Target.notes (target_notes ta),
196 abbrev = Generic_Target.abbrev (target_abbrev ta),
197 declaration = target_declaration ta,
199 exit = Local_Theory.target_of o before_exit}
202 val theory_init = init I "";
205 (case Data.get lthy of
206 SOME (Target {target, before_exit, ...}) => init before_exit target o Local_Theory.exit_global
207 | NONE => error "Not in a named target");
209 fun context_cmd "-" thy = init I "" thy
210 | context_cmd target thy = init I (Locale.intern thy target) thy;