author | haftmann |
Wed, 11 Aug 2010 14:41:16 +0200 | |
changeset 38349 | ed50e21e715a |
parent 38348 | cf7b2121ad9d |
permissions | -rw-r--r-- |
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(* Title: Pure/Isar/theory_target.ML |
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Author: Makarius |
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Author: Florian Haftmann, TU Muenchen |
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Common theory/locale/class/instantiation/overloading targets. |
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*) |
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signature THEORY_TARGET = |
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sig |
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val peek: local_theory -> {target: string, is_locale: bool, is_class: bool} |
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val init: string option -> theory -> local_theory |
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val context_cmd: xstring -> theory -> local_theory |
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end; |
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structure Theory_Target: THEORY_TARGET = |
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struct |
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(* context data *) |
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datatype target = Target of {target: string, is_locale: bool, is_class: bool}; |
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fun make_target target is_locale is_class = |
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Target {target = target, is_locale = is_locale, is_class = is_class}; |
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val global_target = make_target "" false false; |
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structure Data = Proof_Data |
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( |
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type T = target; |
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fun init _ = global_target; |
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); |
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val peek = (fn Target args => args) o Data.get; |
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(* generic declarations *) |
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fun locale_declaration locale { syntax, pervasive } decl lthy = |
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let |
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val add = if syntax then Locale.add_syntax_declaration else Locale.add_declaration; |
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val locale_decl = Morphism.transform (Local_Theory.target_morphism lthy) decl; |
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in |
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lthy |
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|> pervasive ? Generic_Target.theory_declaration decl |
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|> Local_Theory.target (add locale locale_decl) |
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end; |
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fun target_declaration (Target {target, ...}) { syntax, pervasive } = |
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if target = "" then Generic_Target.theory_declaration |
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else locale_declaration target { syntax = syntax, pervasive = pervasive }; |
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(* consts in locales *) |
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fun locale_const (Target {target, is_class, ...}) (prmode as (mode, _)) ((b, mx), rhs) phi = |
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let |
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val b' = Morphism.binding phi b; |
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val rhs' = Morphism.term phi rhs; |
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val arg = (b', Term.close_schematic_term rhs'); |
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val same_shape = Term.aconv_untyped (rhs, rhs'); |
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(* FIXME workaround based on educated guess *) |
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val prefix' = Binding.prefix_of b'; |
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val is_canonical_class = is_class andalso |
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(Binding.eq_name (b, b') |
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andalso not (null prefix') |
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andalso List.last prefix' = (Class_Target.class_prefix target, false) |
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orelse same_shape); |
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in |
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not is_canonical_class ? |
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(Context.mapping_result |
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(Sign.add_abbrev Print_Mode.internal arg) |
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(ProofContext.add_abbrev Print_Mode.internal arg) |
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#-> (fn (lhs' as Const (d, _), _) => |
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same_shape ? |
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(Context.mapping |
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(Sign.revert_abbrev mode d) (ProofContext.revert_abbrev mode d) #> |
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Morphism.form (ProofContext.target_notation true prmode [(lhs', mx)])))) |
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end; |
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fun locale_const_declaration (ta as Target {target, ...}) prmode arg = |
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locale_declaration target { syntax = true, pervasive = false } (locale_const ta prmode arg); |
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fun class_target (Target {target, ...}) f = |
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Local_Theory.raw_theory f #> |
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Local_Theory.target (Class_Target.refresh_syntax target); |
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(* define *) |
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fun locale_foundation ta (((b, U), mx), (b_def, rhs)) (type_params, term_params) = |
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Generic_Target.theory_foundation (((b, U), NoSyn), (b_def, rhs)) (type_params, term_params) |
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#-> (fn (lhs, def) => locale_const_declaration ta Syntax.mode_default ((b, mx), lhs) |
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#> pair (lhs, def)) |
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fun class_foundation (ta as Target {target, ...}) |
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(((b, U), mx), (b_def, rhs)) (type_params, term_params) = |
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Generic_Target.theory_foundation (((b, U), NoSyn), (b_def, rhs)) (type_params, term_params) |
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#-> (fn (lhs, def) => locale_const_declaration ta Syntax.mode_default ((b, NoSyn), lhs) |
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#> class_target ta (Class_Target.declare target ((b, mx), (type_params, lhs))) |
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#> pair (lhs, def)) |
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fun target_foundation (ta as Target {target, is_locale, is_class, ...}) = |
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if is_class then class_foundation ta |
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else if is_locale then locale_foundation ta |
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else Generic_Target.theory_foundation; |
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(* notes *) |
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fun locale_notes locale kind global_facts local_facts lthy = |
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let |
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val global_facts' = Attrib.map_facts (K I) global_facts; |
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val local_facts' = Element.facts_map |
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(Element.morph_ctxt (Local_Theory.target_morphism lthy)) local_facts; |
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in |
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lthy |
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|> Local_Theory.theory (PureThy.note_thmss kind global_facts' #> snd) |
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|> Local_Theory.target (Locale.add_thmss locale kind local_facts') |
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end |
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fun target_notes (ta as Target {target, is_locale, ...}) = |
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if is_locale then locale_notes target |
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else fn kind => fn global_facts => fn _ => Generic_Target.theory_notes kind global_facts; |
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(* abbrev *) |
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fun locale_abbrev ta prmode ((b, mx), t) xs = Local_Theory.theory_result |
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(Sign.add_abbrev Print_Mode.internal (b, t)) #-> |
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(fn (lhs, _) => locale_const_declaration ta prmode |
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((b, mx), Term.list_comb (Logic.unvarify_global lhs, xs))); |
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fun target_abbrev (ta as Target {target, is_locale, is_class, ...}) |
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prmode (b, mx) (global_rhs, t') xs lthy = |
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if is_locale |
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then lthy |
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|> locale_abbrev ta prmode ((b, if is_class then NoSyn else mx), global_rhs) xs |
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|> is_class ? class_target ta (Class_Target.abbrev target prmode ((b, mx), t')) |
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else lthy |
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|> Generic_Target.theory_abbrev prmode ((b, mx), global_rhs); |
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(* pretty *) |
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fun pretty_thy ctxt target is_class = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val target_name = |
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[Pretty.command (if is_class then "class" else "locale"), |
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Pretty.str (" " ^ Locale.extern thy target)]; |
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val fixes = map (fn (x, T) => (Binding.name x, SOME T, NoSyn)) |
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(#1 (ProofContext.inferred_fixes ctxt)); |
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val assumes = map (fn A => (Attrib.empty_binding, [(Thm.term_of A, [])])) |
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(Assumption.all_assms_of ctxt); |
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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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in |
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if target = "" then [] |
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else if null elems then [Pretty.block target_name] |
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else [Pretty.block (Pretty.fbreaks (Pretty.block (target_name @ [Pretty.str " ="]) :: |
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map (Pretty.chunks o Element.pretty_ctxt ctxt) elems))] |
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end; |
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fun pretty (Target {target, is_class, ...}) ctxt = |
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Pretty.block [Pretty.command "theory", Pretty.brk 1, |
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Pretty.str (Context.theory_name (ProofContext.theory_of ctxt))] :: |
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pretty_thy ctxt target is_class; |
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(* init various targets *) |
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local |
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fun init_data (Target {target, is_locale, is_class}) = |
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if not is_locale then ProofContext.init_global |
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else if not is_class then Locale.init target |
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else Class_Target.init target; |
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fun init_target (ta as Target {target, ...}) thy = |
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thy |
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|> init_data ta |
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|> Data.put ta |
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|> Local_Theory.init NONE (Long_Name.base_name target) |
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{define = Generic_Target.define (target_foundation ta), |
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notes = Generic_Target.notes (target_notes ta), |
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abbrev = Generic_Target.abbrev (target_abbrev ta), |
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declaration = fn pervasive => target_declaration ta |
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{ syntax = false, pervasive = pervasive }, |
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syntax_declaration = fn pervasive => target_declaration ta |
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{ syntax = true, pervasive = pervasive }, |
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pretty = pretty ta, |
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reinit = init_target ta o ProofContext.theory_of, |
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exit = Local_Theory.target_of}; |
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fun named_target _ NONE = global_target |
|
197 |
| named_target thy (SOME target) = |
|
198 |
if Locale.defined thy target |
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38338
0e0e1fd9cc03
remove overloading and instantiation from data slot
haftmann
parents:
38319
diff
changeset
|
199 |
then make_target target true (Class_Target.is_class thy target) |
38247 | 200 |
else error ("No such locale: " ^ quote target); |
20894 | 201 |
|
25291 | 202 |
in |
20894 | 203 |
|
38247 | 204 |
fun init target thy = init_target (named_target thy target) thy; |
25269 | 205 |
|
35205 | 206 |
fun context_cmd "-" thy = init NONE thy |
207 |
| context_cmd target thy = init (SOME (Locale.intern thy target)) thy; |
|
33282 | 208 |
|
20894 | 209 |
end; |
25291 | 210 |
|
211 |
end; |