author | wenzelm |
Tue, 06 Nov 2007 22:50:38 +0100 | |
changeset 25320 | 618247e82f3d |
parent 25311 | aa750e3a581c |
child 25372 | a718f1ccaf1a |
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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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 begin: string -> Proof.context -> local_theory |
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val context: xstring -> 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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(* 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 = ProofDataFun |
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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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(* pretty *) |
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fun pretty (Target {target, is_locale, is_class}) ctxt = |
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let |
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val thy = ProofContext.theory_of ctxt; |
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val target_name = (if is_class then "class " else "locale ") ^ Locale.extern thy target; |
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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)); |
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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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Pretty.block [Pretty.str "theory", Pretty.brk 1, Pretty.str (Context.theory_name thy)] :: |
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(if target = "" then [] |
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else if null elems then [Pretty.str target_name] |
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else [Pretty.big_list (target_name ^ " =") |
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(map (Pretty.chunks o Element.pretty_ctxt ctxt) elems)]) |
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end; |
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(* target declarations *) |
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fun target_decl add (Target {target, ...}) d lthy = |
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let |
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val d' = Morphism.transform (LocalTheory.target_morphism lthy) d; |
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val d0 = Morphism.form d'; |
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in |
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if target = "" 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 target 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 (Target {target, ...}) lthy = |
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(if target = "" 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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fun class_target (Target {target, ...}) f = |
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LocalTheory.raw_theory f #> |
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LocalTheory.target (Class.refresh_syntax target); |
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(* notes *) |
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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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|> 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']) |
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| SOME res => LocalDefs.trans_props ctxt [res, Thm.symmetric concl_conv]) |
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|> Goal.norm_result |
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|> PureThy.name_thm false false name; |
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in (result'', result) end; |
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fun notes (Target {target, is_locale, ...}) kind facts lthy = |
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let |
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val thy = ProofContext.theory_of lthy; |
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val full = LocalTheory.full_name lthy; |
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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_locale ? 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_locale then K I else Attrib.attribute_i thy); |
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in |
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lthy |> LocalTheory.theory |
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(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_locale ? LocalTheory.target (Locale.add_thmss target kind target_facts) |
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|> ProofContext.qualified_names |
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|> ProofContext.note_thmss_i kind local_facts |
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||> ProofContext.restore_naming lthy |
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end; |
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(* declare_const *) |
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fun fork_mixfix (Target {is_locale, is_class, ...}) mx = |
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if not is_locale then (NoSyn, NoSyn, mx) |
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else if not is_class then (NoSyn, mx, NoSyn) |
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else (mx, NoSyn, NoSyn); |
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fun locale_const (Target {target, is_class, ...}) (prmode as (mode, _)) pos ((c, mx), rhs) phi = |
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let |
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val c' = Morphism.name phi c; |
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val rhs' = Morphism.term phi rhs; |
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val legacy_arg = (c', Term.close_schematic_term (Logic.legacy_varify rhs')); |
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val arg = (c', Term.close_schematic_term rhs'); |
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(* FIXME workaround based on educated guess *) |
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val class_global = is_class andalso c' = NameSpace.qualified (Class.class_prefix target) c; |
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in |
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not class_global ? |
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(Context.mapping_result |
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(Sign.add_abbrev PrintMode.internal pos legacy_arg) |
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(ProofContext.add_abbrev PrintMode.internal pos arg) |
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#-> (fn (lhs' as Const (d, _), _) => |
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Type.similar_types (rhs, rhs') ? |
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189 |
(Context.mapping (Sign.revert_abbrev mode d) (ProofContext.revert_abbrev mode d) #> |
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190 |
Morphism.form (ProofContext.target_notation true prmode [(lhs', mx)])))) |
24939 | 191 |
end; |
192 |
||
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193 |
fun declare_const (ta as Target {target, is_locale, is_class}) depends ((c, T), mx) lthy = |
24939 | 194 |
let |
25053 | 195 |
val pos = ContextPosition.properties_of lthy; |
24939 | 196 |
val xs = filter depends (#1 (ProofContext.inferred_fixes (LocalTheory.target_of lthy))); |
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197 |
val U = map #2 xs ---> T; |
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198 |
val (mx1, mx2, mx3) = fork_mixfix ta mx; |
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199 |
val (const, lthy') = lthy |> LocalTheory.theory_result (Sign.declare_const pos (c, U, mx3)); |
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200 |
val t = Term.list_comb (const, map Free xs); |
24939 | 201 |
in |
202 |
lthy' |
|
25212
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203 |
|> is_locale ? term_syntax ta (locale_const ta Syntax.mode_default pos ((c, mx2), t)) |
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204 |
|> is_class ? class_target ta (Class.add_logical_const target pos ((c, mx1), t)) |
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205 |
|> LocalDefs.add_def ((c, NoSyn), t) |
24939 | 206 |
end; |
207 |
||
208 |
||
209 |
(* abbrev *) |
|
210 |
||
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211 |
fun abbrev (ta as Target {target, is_locale, is_class}) prmode ((c, mx), t) lthy = |
24939 | 212 |
let |
25053 | 213 |
val pos = ContextPosition.properties_of lthy; |
214 |
val thy_ctxt = ProofContext.init (ProofContext.theory_of lthy); |
|
25012
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215 |
val target_ctxt = LocalTheory.target_of lthy; |
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changeset
|
216 |
|
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217 |
val (mx1, mx2, mx3) = fork_mixfix ta mx; |
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218 |
val t' = Assumption.export_term lthy target_ctxt t; |
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219 |
val xs = map Free (rev (Variable.add_fixed target_ctxt t' [])); |
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220 |
val u = fold_rev lambda xs t'; |
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221 |
val global_rhs = |
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222 |
singleton (Variable.export_terms (Variable.declare_term u target_ctxt) thy_ctxt) u; |
25121 | 223 |
in |
224 |
lthy |> |
|
225 |
(if is_locale then |
|
226 |
LocalTheory.theory_result (Sign.add_abbrev PrintMode.internal pos (c, global_rhs)) |
|
227 |
#-> (fn (lhs, _) => |
|
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228 |
let val lhs' = Term.list_comb (Logic.unvarify lhs, xs) in |
25212
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229 |
term_syntax ta (locale_const ta prmode pos ((c, mx2), lhs')) #> |
25150 | 230 |
is_class ? class_target ta (Class.add_syntactic_const target prmode pos ((c, mx1), t')) |
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231 |
end) |
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232 |
else |
25121 | 233 |
LocalTheory.theory |
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changeset
|
234 |
(Sign.add_abbrev (#1 prmode) pos (c, global_rhs) #-> (fn (lhs, _) => |
25121 | 235 |
Sign.notation true prmode [(lhs, mx3)]))) |
236 |
|> ProofContext.add_abbrev PrintMode.internal pos (c, t) |> snd |
|
237 |
|> LocalDefs.fixed_abbrev ((c, NoSyn), t) |
|
24939 | 238 |
end; |
239 |
||
240 |
||
25022 | 241 |
(* define *) |
24939 | 242 |
|
25022 | 243 |
fun define (ta as Target {target, is_locale, is_class}) |
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changeset
|
244 |
kind ((c, mx), ((name, atts), rhs)) lthy = |
24939 | 245 |
let |
24987 | 246 |
val thy = ProofContext.theory_of lthy; |
24939 | 247 |
val thy_ctxt = ProofContext.init thy; |
248 |
||
25022 | 249 |
val name' = Thm.def_name_optional c name; |
24987 | 250 |
val (rhs', rhs_conv) = |
251 |
LocalDefs.export_cterm lthy thy_ctxt (Thm.cterm_of thy rhs) |>> Thm.term_of; |
|
252 |
val xs = Variable.add_fixed (LocalTheory.target_of lthy) rhs' []; |
|
24939 | 253 |
val T = Term.fastype_of rhs; |
254 |
||
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changeset
|
255 |
(*const*) |
c9f67836c4d8
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diff
changeset
|
256 |
val ((lhs, local_def), lthy2) = lthy |> declare_const ta (member (op =) xs) ((c, T), mx); |
25022 | 257 |
val (_, lhs') = Logic.dest_equals (Thm.prop_of local_def); |
24939 | 258 |
|
259 |
(*def*) |
|
25022 | 260 |
val (global_def, lthy3) = lthy2 |
24983 | 261 |
|> LocalTheory.theory_result (Thm.add_def false (name', Logic.mk_equals (lhs', rhs'))); |
25022 | 262 |
val def = LocalDefs.trans_terms lthy3 |
263 |
[(*c == global.c xs*) local_def, |
|
264 |
(*global.c xs == rhs'*) global_def, |
|
265 |
(*rhs' == rhs*) Thm.symmetric rhs_conv]; |
|
24939 | 266 |
|
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|
267 |
(*note*) |
24939 | 268 |
val ([(res_name, [res])], lthy4) = lthy3 |
25022 | 269 |
|> notes ta kind [((name', atts), [([def], [])])]; |
24939 | 270 |
in ((lhs, (res_name, res)), lthy4) end; |
271 |
||
272 |
||
273 |
(* axioms *) |
|
274 |
||
25022 | 275 |
fun axioms ta kind (vars, specs) lthy = |
24939 | 276 |
let |
25022 | 277 |
val thy_ctxt = ProofContext.init (ProofContext.theory_of lthy); |
278 |
val expanded_props = map (Assumption.export_term lthy thy_ctxt) (maps snd specs); |
|
279 |
val xs = fold Term.add_frees expanded_props []; |
|
24989
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|
280 |
|
25022 | 281 |
(*consts*) |
25105
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|
282 |
val (consts, lthy') = fold_map (declare_const ta (member (op =) xs)) vars lthy; |
25022 | 283 |
val global_consts = map (Term.dest_Const o Term.head_of o Thm.term_of o Thm.rhs_of o #2) consts; |
284 |
||
285 |
(*axioms*) |
|
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|
286 |
val hyps = map Thm.term_of (Assumption.assms_of lthy'); |
24939 | 287 |
fun axiom ((name, atts), props) thy = thy |
24983 | 288 |
|> fold_map (Thm.add_axiom hyps) (PureThy.name_multi name props) |
24939 | 289 |
|-> (fn ths => pair ((name, atts), [(ths, [])])); |
290 |
in |
|
24987 | 291 |
lthy' |
25022 | 292 |
|> fold Variable.declare_term expanded_props |
293 |
|> LocalTheory.theory (fold (fn c => Theory.add_deps "" c []) global_consts) |
|
24939 | 294 |
|> LocalTheory.theory_result (fold_map axiom specs) |
25022 | 295 |
|-> notes ta kind |
24987 | 296 |
|>> pair (map #1 consts) |
24939 | 297 |
end; |
298 |
||
299 |
||
25291 | 300 |
(* init *) |
301 |
||
302 |
local |
|
20894 | 303 |
|
25291 | 304 |
fun init_target _ NONE = global_target |
305 |
| init_target thy (SOME target) = make_target target true (Class.is_class thy target); |
|
306 |
||
307 |
fun init_ctxt (Target {target, is_locale, is_class}) = |
|
25320 | 308 |
if not is_locale then ProofContext.init |
309 |
else if not is_class then Locale.init target |
|
310 |
else Class.init target; |
|
25269 | 311 |
|
25291 | 312 |
fun init_lthy (ta as Target {target, ...}) = |
313 |
Data.put ta #> |
|
314 |
LocalTheory.init (NameSpace.base target) |
|
315 |
{pretty = pretty ta, |
|
316 |
axioms = axioms ta, |
|
317 |
abbrev = abbrev ta, |
|
318 |
define = define ta, |
|
319 |
notes = notes ta, |
|
320 |
type_syntax = type_syntax ta, |
|
321 |
term_syntax = term_syntax ta, |
|
322 |
declaration = declaration ta, |
|
323 |
target_naming = target_naming ta, |
|
324 |
reinit = fn lthy => init_lthy_ctxt ta (ProofContext.theory_of lthy), |
|
325 |
exit = LocalTheory.target_of} |
|
326 |
and init_lthy_ctxt ta = init_lthy ta o init_ctxt ta; |
|
20894 | 327 |
|
25291 | 328 |
in |
20894 | 329 |
|
25291 | 330 |
fun init target thy = init_lthy_ctxt (init_target thy target) thy; |
331 |
fun begin target ctxt = init_lthy (init_target (ProofContext.theory_of ctxt) (SOME target)) ctxt; |
|
25269 | 332 |
|
25291 | 333 |
fun context "-" thy = init NONE thy |
334 |
| context target thy = init (SOME (Locale.intern thy target)) thy; |
|
20894 | 335 |
|
336 |
end; |
|
25291 | 337 |
|
338 |
end; |
|
339 |