author | wenzelm |
Sun, 14 Oct 2007 00:18:11 +0200 | |
changeset 25028 | e0f74efc210f |
parent 25022 | bb0dcb603a13 |
child 25040 | 4e54c5ae6852 |
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 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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(* 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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structure Data = ProofDataFun |
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( |
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type T = target; |
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fun init _ = make_target "" false false; |
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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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(* 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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(* consts *) |
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fun target_abbrev prmode ((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 arg' = (c', rhs'); |
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val eq_heads = |
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(case pairself Term.head_of (rhs, rhs') of |
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(Const (a, _), Const (a', _)) => a = a' |
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| _ => false); |
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in |
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eq_heads ? (Context.mapping_result |
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(Sign.add_abbrev Syntax.internalM [] arg') |
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(ProofContext.add_abbrev Syntax.internalM [] arg') |
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#-> (fn (lhs, _) => |
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Type.similar_types (rhs, rhs') ? |
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Morphism.form (ProofContext.target_notation true prmode [(lhs, mx)]))) |
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end; |
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fun internal_abbrev ta prmode ((c, mx), t) lthy = lthy |
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(* FIXME really permissive *) |
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|> term_syntax ta (perhaps o try o target_abbrev prmode ((c, mx), t)) |
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|> ProofContext.add_abbrev Syntax.internalM (ContextPosition.properties_of lthy) (c, t) |
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|> snd; |
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fun declare_consts (ta as Target {target, is_locale, is_class}) depends decls lthy = |
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let |
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val thy = ProofContext.theory_of lthy; |
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val xs = filter depends (#1 (ProofContext.inferred_fixes (LocalTheory.target_of lthy))); |
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fun const ((c, T), mx) thy = |
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let |
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val U = map #2 xs ---> T; |
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val (mx1, mx2) = Class.fork_mixfix is_locale is_class mx; |
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val mx3 = if is_locale then NoSyn else mx1; |
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val (const, thy') = Sign.declare_const (ContextPosition.properties_of lthy) (c, U, mx3) thy; |
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val t = Term.list_comb (const, map Free xs); |
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in (((c, mx2), t), thy') end; |
25022 | 202 |
fun const_class ((c, _), mx) (_, t) = |
25028 | 203 |
LocalTheory.raw_theory_result (Class.add_const_in_class target ((c, mx), t)) |
25022 | 204 |
#-> Class.remove_constraint target; |
24939 | 205 |
|
206 |
val (abbrs, lthy') = lthy |
|
207 |
|> LocalTheory.theory_result (fold_map const decls) |
|
208 |
in |
|
209 |
lthy' |
|
25022 | 210 |
|> is_class ? fold2 const_class decls abbrs |
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|> is_locale ? fold (internal_abbrev ta Syntax.mode_default) abbrs |
25028 | 212 |
|> fold_map (apfst (apsnd snd) oo LocalDefs.add_def) abbrs |
24939 | 213 |
end; |
214 |
||
215 |
||
216 |
(* abbrev *) |
|
217 |
||
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fun abbrev (ta as Target {target, is_locale, is_class}) prmode ((raw_c, mx), raw_t) lthy = |
24939 | 219 |
let |
220 |
val thy = ProofContext.theory_of lthy; |
|
221 |
val thy_ctxt = ProofContext.init thy; |
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val target_ctxt = LocalTheory.target_of lthy; |
24939 | 223 |
val target_morphism = LocalTheory.target_morphism lthy; |
224 |
||
225 |
val c = Morphism.name target_morphism raw_c; |
|
226 |
val t = Morphism.term target_morphism raw_t; |
|
25022 | 227 |
val xs = map Free (Variable.add_fixed target_ctxt t []); |
228 |
val u = fold_rev lambda xs t; |
|
24939 | 229 |
val U = Term.fastype_of u; |
25022 | 230 |
|
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val u' = singleton (Variable.export_terms (Variable.declare_term u target_ctxt) thy_ctxt) u; |
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val (mx1, mx2) = Class.fork_mixfix is_locale is_class mx; |
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val mx3 = if is_locale then NoSyn else mx1; |
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234 |
fun add_abbrev_in_class abbr = |
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LocalTheory.raw_theory_result (Class.add_abbrev_in_class target prmode abbr) |
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#-> Class.remove_constraint target; |
24939 | 237 |
in |
238 |
lthy |
|
239 |
|> LocalTheory.theory_result |
|
240 |
(Sign.add_abbrev (#1 prmode) (ContextPosition.properties_of lthy) (c, u')) |
|
25022 | 241 |
|-> (fn (lhs, rhs) => |
24949 | 242 |
LocalTheory.theory (Sign.notation true prmode [(lhs, mx3)]) |
25022 | 243 |
#> is_locale ? internal_abbrev ta prmode ((c, mx2), Term.list_comb (lhs, xs)) |
25028 | 244 |
#> is_class ? add_abbrev_in_class ((c, mx1), Term.list_comb (lhs, xs))) |
245 |
|> LocalDefs.add_def ((c, NoSyn), raw_t) |
|
24939 | 246 |
end; |
247 |
||
248 |
||
25022 | 249 |
(* define *) |
24939 | 250 |
|
25022 | 251 |
fun define (ta as Target {target, is_locale, is_class}) |
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kind ((c, mx), ((name, atts), rhs)) lthy = |
24939 | 253 |
let |
24987 | 254 |
val thy = ProofContext.theory_of lthy; |
24939 | 255 |
val thy_ctxt = ProofContext.init thy; |
256 |
||
25022 | 257 |
val name' = Thm.def_name_optional c name; |
24987 | 258 |
val (rhs', rhs_conv) = |
259 |
LocalDefs.export_cterm lthy thy_ctxt (Thm.cterm_of thy rhs) |>> Thm.term_of; |
|
260 |
val xs = Variable.add_fixed (LocalTheory.target_of lthy) rhs' []; |
|
24939 | 261 |
val T = Term.fastype_of rhs; |
262 |
||
263 |
(*consts*) |
|
25022 | 264 |
val ([(lhs, local_def)], lthy2) = lthy |
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|> declare_consts ta (member (op =) xs) [((c, T), mx)]; |
25022 | 266 |
val (_, lhs') = Logic.dest_equals (Thm.prop_of local_def); |
24939 | 267 |
|
268 |
(*def*) |
|
25022 | 269 |
val (global_def, lthy3) = lthy2 |
24983 | 270 |
|> LocalTheory.theory_result (Thm.add_def false (name', Logic.mk_equals (lhs', rhs'))); |
25022 | 271 |
val def = LocalDefs.trans_terms lthy3 |
272 |
[(*c == global.c xs*) local_def, |
|
273 |
(*global.c xs == rhs'*) global_def, |
|
274 |
(*rhs' == rhs*) Thm.symmetric rhs_conv]; |
|
24939 | 275 |
|
276 |
(*notes*) |
|
277 |
val ([(res_name, [res])], lthy4) = lthy3 |
|
25022 | 278 |
|> notes ta kind [((name', atts), [([def], [])])]; |
24939 | 279 |
in ((lhs, (res_name, res)), lthy4) end; |
280 |
||
281 |
||
282 |
(* axioms *) |
|
283 |
||
25022 | 284 |
fun axioms ta kind (vars, specs) lthy = |
24939 | 285 |
let |
25022 | 286 |
val thy_ctxt = ProofContext.init (ProofContext.theory_of lthy); |
287 |
val expanded_props = map (Assumption.export_term lthy thy_ctxt) (maps snd specs); |
|
288 |
val xs = fold Term.add_frees expanded_props []; |
|
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289 |
|
25022 | 290 |
(*consts*) |
291 |
val (consts, lthy') = declare_consts ta (member (op =) xs) vars lthy; |
|
292 |
val global_consts = map (Term.dest_Const o Term.head_of o Thm.term_of o Thm.rhs_of o #2) consts; |
|
293 |
||
294 |
(*axioms*) |
|
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295 |
val hyps = map Thm.term_of (Assumption.assms_of lthy'); |
24939 | 296 |
fun axiom ((name, atts), props) thy = thy |
24983 | 297 |
|> fold_map (Thm.add_axiom hyps) (PureThy.name_multi name props) |
24939 | 298 |
|-> (fn ths => pair ((name, atts), [(ths, [])])); |
299 |
in |
|
24987 | 300 |
lthy' |
25022 | 301 |
|> fold Variable.declare_term expanded_props |
302 |
|> LocalTheory.theory (fold (fn c => Theory.add_deps "" c []) global_consts) |
|
24939 | 303 |
|> LocalTheory.theory_result (fold_map axiom specs) |
25022 | 304 |
|-> notes ta kind |
24987 | 305 |
|>> pair (map #1 consts) |
24939 | 306 |
end; |
307 |
||
308 |
||
20894 | 309 |
(* init and exit *) |
310 |
||
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fun begin target ctxt = |
22353 | 312 |
let |
313 |
val thy = ProofContext.theory_of ctxt; |
|
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val is_locale = target <> ""; |
25028 | 315 |
val is_class = Class.is_class thy target; |
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316 |
val ta = Target {target = target, is_locale = is_locale, is_class = is_class}; |
22353 | 317 |
in |
318 |
ctxt |
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319 |
|> Data.put ta |
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320 |
|> is_class ? Class.init target |
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321 |
|> LocalTheory.init (NameSpace.base target) |
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{pretty = pretty ta, |
25022 | 323 |
axioms = axioms ta, |
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324 |
abbrev = abbrev ta, |
25022 | 325 |
define = define ta, |
326 |
notes = notes ta, |
|
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327 |
type_syntax = type_syntax ta, |
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328 |
term_syntax = term_syntax ta, |
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declaration = declaration ta, |
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330 |
target_naming = target_naming ta, |
21804 | 331 |
reinit = fn _ => |
25028 | 332 |
begin target o (if is_locale then Locale.init target else ProofContext.init), |
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exit = LocalTheory.target_of} |
21747 | 334 |
end; |
20894 | 335 |
|
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336 |
fun init NONE thy = begin "" (ProofContext.init thy) |
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337 |
| init (SOME target) thy = begin target (Locale.init target thy); |
20894 | 338 |
|
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339 |
fun init_cmd (SOME "-") thy = init NONE thy |
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340 |
| init_cmd target thy = init (Option.map (Locale.intern thy) target) thy; |
20894 | 341 |
|
342 |
end; |