author | haftmann |
Wed, 18 Feb 2009 19:18:33 +0100 | |
changeset 29971 | 68331b62c873 |
parent 29710 | f2e70a0636b9 |
child 30223 | 24d975352879 |
permissions | -rw-r--r-- |
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(* Title: Pure/Isar/theory_target.ML |
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Author: Makarius |
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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, |
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is_class: bool, instantiation: string list * (string * sort) list * sort, |
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overloading: (string * (string * typ) * bool) list} |
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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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val instantiation: string list * (string * sort) list * sort -> theory -> local_theory |
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val instantiation_cmd: xstring list * xstring list * xstring -> theory -> local_theory |
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val overloading: (string * (string * typ) * bool) list -> theory -> local_theory |
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val overloading_cmd: (string * string * bool) list -> 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, |
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is_class: bool, instantiation: string list * (string * sort) list * sort, |
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overloading: (string * (string * typ) * bool) list}; |
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fun make_target target is_locale is_class instantiation overloading = |
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Target {target = target, is_locale = is_locale, |
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is_class = is_class, instantiation = instantiation, overloading = overloading}; |
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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_thy ctxt target is_locale is_class = |
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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) => (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.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.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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fun pretty (Target {target, is_locale, is_class, instantiation, overloading, ...}) ctxt = |
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Pretty.block [Pretty.str "theory", Pretty.brk 1, |
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Pretty.str (Context.theory_name (ProofContext.theory_of ctxt))] :: |
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(if not (null overloading) then [Overloading.pretty ctxt] |
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else if not (null (#1 instantiation)) then [Class_Target.pretty_instantiation ctxt] |
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else pretty_thy ctxt target is_locale is_class); |
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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 class_target (Target {target, ...}) f = |
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LocalTheory.raw_theory f #> |
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LocalTheory.target (Class_Target.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 = PureThy.name_thm true true Position.none name th''; |
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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 Position.none name; |
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in (result'', result) end; |
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fun note_local kind facts ctxt = |
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ctxt |
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|> ProofContext.qualified_names |
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|> ProofContext.note_thmss_i kind facts |
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||> ProofContext.restore_naming ctxt; |
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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 facts' = facts |
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|> map (fn (a, bs) => (a, PureThy.burrow_fact (PureThy.name_multi |
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(LocalTheory.full_name lthy (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_grouped kind (LocalTheory.group_of lthy) global_facts #> snd |
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#> Sign.restore_naming thy) |
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|> not is_locale ? LocalTheory.target (note_local kind global_facts #> snd) |
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|> is_locale ? LocalTheory.target (Locale.add_thmss target kind target_facts) |
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|> note_local kind local_facts |
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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, _)) tags ((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 legacy_arg = (b', Term.close_schematic_term (Logic.legacy_varify rhs')); |
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val arg = (b', Term.close_schematic_term rhs'); |
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val similar_body = Type.similar_types (rhs, rhs'); |
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190 |
(* FIXME workaround based on educated guess *) |
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val (prefix', _) = Binding.dest b'; |
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val class_global = Binding.base_name b = Binding.base_name b' |
28861 | 193 |
andalso not (null prefix') |
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andalso (fst o snd o split_last) prefix' = Class_Target.class_prefix target; |
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in |
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not (is_class andalso (similar_body orelse class_global)) ? |
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(Context.mapping_result |
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(fn thy => thy |> |
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Sign.no_base_names |
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|> Sign.add_abbrev PrintMode.internal tags legacy_arg |
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201 |
||> Sign.restore_naming thy) |
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(ProofContext.add_abbrev PrintMode.internal tags arg) |
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#-> (fn (lhs' as Const (d, _), _) => |
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|
204 |
similar_body ? |
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205 |
(Context.mapping (Sign.revert_abbrev mode d) (ProofContext.revert_abbrev mode d) #> |
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206 |
Morphism.form (ProofContext.target_notation true prmode [(lhs', mx)])))) |
24939 | 207 |
end; |
208 |
||
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|
209 |
fun declare_const (ta as Target {target, is_locale, is_class, ...}) depends ((b, T), mx) lthy = |
24939 | 210 |
let |
29006 | 211 |
val c = Binding.base_name b; |
26132 | 212 |
val tags = LocalTheory.group_position_of lthy; |
24939 | 213 |
val xs = filter depends (#1 (ProofContext.inferred_fixes (LocalTheory.target_of lthy))); |
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214 |
val U = map #2 xs ---> T; |
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|
215 |
val (mx1, mx2, mx3) = fork_mixfix ta mx; |
25519 | 216 |
fun syntax_error c = error ("Illegal mixfix syntax for overloaded constant " ^ quote c); |
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|
217 |
val declare_const = |
29358 | 218 |
(case Class_Target.instantiation_param lthy c of |
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|
219 |
SOME c' => |
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220 |
if mx3 <> NoSyn then syntax_error c' |
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|
221 |
else LocalTheory.theory_result (AxClass.declare_overloaded (c', U)) |
29358 | 222 |
##> Class_Target.confirm_declaration c |
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223 |
| NONE => |
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224 |
(case Overloading.operation lthy c of |
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225 |
SOME (c', _) => |
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226 |
if mx3 <> NoSyn then syntax_error c' |
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|
227 |
else LocalTheory.theory_result (Overloading.declare (c', U)) |
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changeset
|
228 |
##> Overloading.confirm c |
28115
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discontinued local axioms -- too difficult to implement, too easy to produce nonsense;
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changeset
|
229 |
| NONE => LocalTheory.theory_result (Sign.declare_const tags ((b, U), mx3)))); |
25485 | 230 |
val (const, lthy') = lthy |> declare_const; |
25105
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internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
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parents:
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changeset
|
231 |
val t = Term.list_comb (const, map Free xs); |
24939 | 232 |
in |
233 |
lthy' |
|
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changeset
|
234 |
|> is_locale ? term_syntax ta (locale_const ta Syntax.mode_default tags ((b, mx2), t)) |
29358 | 235 |
|> is_class ? class_target ta (Class_Target.declare target tags ((c, mx1), t)) |
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|
236 |
|> LocalDefs.add_def ((b, NoSyn), t) |
24939 | 237 |
end; |
238 |
||
239 |
||
240 |
(* abbrev *) |
|
241 |
||
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changeset
|
242 |
fun abbrev (ta as Target {target, is_locale, is_class, ...}) prmode ((b, mx), t) lthy = |
24939 | 243 |
let |
29006 | 244 |
val c = Binding.base_name b; |
26132 | 245 |
val tags = LocalTheory.group_position_of lthy; |
25053 | 246 |
val thy_ctxt = ProofContext.init (ProofContext.theory_of lthy); |
25012
448af76a1ba3
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diff
changeset
|
247 |
val target_ctxt = LocalTheory.target_of lthy; |
25105
c9f67836c4d8
internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
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changeset
|
248 |
|
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|
249 |
val (mx1, mx2, mx3) = fork_mixfix ta mx; |
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parents:
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diff
changeset
|
250 |
val t' = Assumption.export_term lthy target_ctxt t; |
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diff
changeset
|
251 |
val xs = map Free (rev (Variable.add_fixed target_ctxt t' [])); |
c9f67836c4d8
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parents:
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changeset
|
252 |
val u = fold_rev lambda xs t'; |
c9f67836c4d8
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diff
changeset
|
253 |
val global_rhs = |
c9f67836c4d8
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diff
changeset
|
254 |
singleton (Variable.export_terms (Variable.declare_term u target_ctxt) thy_ctxt) u; |
25121 | 255 |
in |
256 |
lthy |> |
|
257 |
(if is_locale then |
|
28861 | 258 |
LocalTheory.theory_result (Sign.add_abbrev PrintMode.internal tags (b, global_rhs)) |
25121 | 259 |
#-> (fn (lhs, _) => |
25105
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internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
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parents:
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diff
changeset
|
260 |
let val lhs' = Term.list_comb (Logic.unvarify lhs, xs) in |
28083
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diff
changeset
|
261 |
term_syntax ta (locale_const ta prmode tags ((b, mx2), lhs')) #> |
29358 | 262 |
is_class ? class_target ta (Class_Target.abbrev target prmode tags ((c, mx1), t')) |
25105
c9f67836c4d8
internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
wenzelm
parents:
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diff
changeset
|
263 |
end) |
c9f67836c4d8
internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
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parents:
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diff
changeset
|
264 |
else |
25121 | 265 |
LocalTheory.theory |
28861 | 266 |
(Sign.add_abbrev (#1 prmode) tags (b, global_rhs) #-> (fn (lhs, _) => |
25121 | 267 |
Sign.notation true prmode [(lhs, mx3)]))) |
28861 | 268 |
|> ProofContext.add_abbrev PrintMode.internal tags (b, t) |> snd |
28083
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parents:
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diff
changeset
|
269 |
|> LocalDefs.fixed_abbrev ((b, NoSyn), t) |
24939 | 270 |
end; |
271 |
||
272 |
||
25022 | 273 |
(* define *) |
24939 | 274 |
|
25485 | 275 |
fun define (ta as Target {target, is_locale, is_class, ...}) |
28083
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wenzelm
parents:
27690
diff
changeset
|
276 |
kind ((b, mx), ((name, atts), rhs)) lthy = |
24939 | 277 |
let |
24987 | 278 |
val thy = ProofContext.theory_of lthy; |
24939 | 279 |
val thy_ctxt = ProofContext.init thy; |
280 |
||
29006 | 281 |
val c = Binding.base_name b; |
28965 | 282 |
val name' = Binding.map_base (Thm.def_name_optional c) name; |
24987 | 283 |
val (rhs', rhs_conv) = |
284 |
LocalDefs.export_cterm lthy thy_ctxt (Thm.cterm_of thy rhs) |>> Thm.term_of; |
|
285 |
val xs = Variable.add_fixed (LocalTheory.target_of lthy) rhs' []; |
|
24939 | 286 |
val T = Term.fastype_of rhs; |
287 |
||
25105
c9f67836c4d8
internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
wenzelm
parents:
25096
diff
changeset
|
288 |
(*const*) |
28083
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explicit type Name.binding for higher-specification elements;
wenzelm
parents:
27690
diff
changeset
|
289 |
val ((lhs, local_def), lthy2) = lthy |> declare_const ta (member (op =) xs) ((b, T), mx); |
25022 | 290 |
val (_, lhs') = Logic.dest_equals (Thm.prop_of local_def); |
24939 | 291 |
|
292 |
(*def*) |
|
26049
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parents:
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diff
changeset
|
293 |
val define_const = |
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parents:
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diff
changeset
|
294 |
(case Overloading.operation lthy c of |
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parents:
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diff
changeset
|
295 |
SOME (_, checked) => |
25519 | 296 |
(fn name => fn (Const (c, _), rhs) => Overloading.define checked name (c, rhs)) |
26049
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wenzelm
parents:
25984
diff
changeset
|
297 |
| NONE => |
29358 | 298 |
if is_none (Class_Target.instantiation_param lthy c) |
29576 | 299 |
then (fn name => fn eq => Thm.add_def false false (Binding.name name, Logic.mk_equals eq)) |
26049
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wenzelm
parents:
25984
diff
changeset
|
300 |
else (fn name => fn (Const (c, _), rhs) => AxClass.define_overloaded name (c, rhs))); |
25022 | 301 |
val (global_def, lthy3) = lthy2 |
29006 | 302 |
|> LocalTheory.theory_result (define_const (Binding.base_name name') (lhs', rhs')); |
25485 | 303 |
val def = LocalDefs.trans_terms lthy3 |
25022 | 304 |
[(*c == global.c xs*) local_def, |
305 |
(*global.c xs == rhs'*) global_def, |
|
25485 | 306 |
(*rhs' == rhs*) Thm.symmetric rhs_conv]; |
24939 | 307 |
|
25105
c9f67836c4d8
internal tuning: class_target, fork_mixfix, declare_const (singleton), abbrev;
wenzelm
parents:
25096
diff
changeset
|
308 |
(*note*) |
24939 | 309 |
val ([(res_name, [res])], lthy4) = lthy3 |
26132 | 310 |
|> notes ta kind [((name', atts), [([def], [])])]; |
24939 | 311 |
in ((lhs, (res_name, res)), lthy4) end; |
312 |
||
313 |
||
25291 | 314 |
(* init *) |
315 |
||
316 |
local |
|
20894 | 317 |
|
25291 | 318 |
fun init_target _ NONE = global_target |
29710 | 319 |
| init_target thy (SOME target) = if Locale.defined thy (Locale.intern thy target) |
320 |
then make_target target true (Class_Target.is_class thy target) ([], [], []) [] |
|
321 |
else error ("No such locale: " ^ quote target); |
|
25291 | 322 |
|
29576 | 323 |
fun init_ctxt (Target {target, is_locale, is_class, instantiation, overloading}) = |
29358 | 324 |
if not (null (#1 instantiation)) then Class_Target.init_instantiation instantiation |
25519 | 325 |
else if not (null overloading) then Overloading.init overloading |
25485 | 326 |
else if not is_locale then ProofContext.init |
29576 | 327 |
else if not is_class then Locale.init target |
29358 | 328 |
else Class_Target.init target; |
25269 | 329 |
|
25542 | 330 |
fun init_lthy (ta as Target {target, instantiation, overloading, ...}) = |
25291 | 331 |
Data.put ta #> |
332 |
LocalTheory.init (NameSpace.base target) |
|
333 |
{pretty = pretty ta, |
|
334 |
abbrev = abbrev ta, |
|
335 |
define = define ta, |
|
336 |
notes = notes ta, |
|
337 |
type_syntax = type_syntax ta, |
|
338 |
term_syntax = term_syntax ta, |
|
339 |
declaration = declaration ta, |
|
340 |
reinit = fn lthy => init_lthy_ctxt ta (ProofContext.theory_of lthy), |
|
26049
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
341 |
exit = LocalTheory.target_of o |
29358 | 342 |
(if not (null (#1 instantiation)) then Class_Target.conclude_instantiation |
26049
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
343 |
else if not (null overloading) then Overloading.conclude |
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
344 |
else I)} |
25291 | 345 |
and init_lthy_ctxt ta = init_lthy ta o init_ctxt ta; |
20894 | 346 |
|
29358 | 347 |
fun read_multi_arity thy (raw_tycos, raw_sorts, raw_sort) = |
348 |
let |
|
349 |
val all_arities = map (fn raw_tyco => Sign.read_arity thy |
|
350 |
(raw_tyco, raw_sorts, raw_sort)) raw_tycos; |
|
351 |
val tycos = map #1 all_arities; |
|
352 |
val (_, sorts, sort) = hd all_arities; |
|
353 |
val vs = Name.names Name.context Name.aT sorts; |
|
354 |
in (tycos, vs, sort) end; |
|
355 |
||
26049
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
356 |
fun gen_overloading prep_const raw_ops thy = |
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
357 |
let |
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
358 |
val ctxt = ProofContext.init thy; |
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
359 |
val ops = raw_ops |> map (fn (name, const, checked) => |
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
360 |
(name, Term.dest_Const (prep_const ctxt const), checked)); |
29576 | 361 |
in thy |> init_lthy_ctxt (make_target "" false false ([], [], []) ops) end; |
26049
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
362 |
|
25291 | 363 |
in |
20894 | 364 |
|
25291 | 365 |
fun init target thy = init_lthy_ctxt (init_target thy target) thy; |
26049
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
366 |
fun begin target ctxt = init_lthy (init_target (ProofContext.theory_of ctxt) (SOME target)) ctxt; |
25269 | 367 |
|
25291 | 368 |
fun context "-" thy = init NONE thy |
29576 | 369 |
| context target thy = init (SOME (Locale.intern thy target)) thy; |
20894 | 370 |
|
29576 | 371 |
fun instantiation arities = init_lthy_ctxt (make_target "" false false arities []); |
29358 | 372 |
fun instantiation_cmd raw_arities thy = |
373 |
instantiation (read_multi_arity thy raw_arities) thy; |
|
25519 | 374 |
|
26049
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
375 |
val overloading = gen_overloading (fn ctxt => Syntax.check_term ctxt o Const); |
8186c03194ed
overloading: reduced code redundancy, no xstrings here;
wenzelm
parents:
25984
diff
changeset
|
376 |
val overloading_cmd = gen_overloading Syntax.read_term; |
25462 | 377 |
|
20894 | 378 |
end; |
25291 | 379 |
|
380 |
end; |
|
381 |