src/Pure/global_theory.ML
author wenzelm
Fri Apr 12 14:54:14 2013 +0200 (2013-04-12)
changeset 51700 c8f2bad67dbb
parent 50201 c26369c9eda6
child 52788 da1fdbfebd39
permissions -rw-r--r--
tuned signature;
tuned comments;
     1 (*  Title:      Pure/global_theory.ML
     2     Author:     Makarius
     3 
     4 Global theory content: stored facts.
     5 *)
     6 
     7 signature GLOBAL_THEORY =
     8 sig
     9   val facts_of: theory -> Facts.T
    10   val intern_fact: theory -> xstring -> string
    11   val defined_fact: theory -> string -> bool
    12   val hide_fact: bool -> string -> theory -> theory
    13   val get_fact: Context.generic -> theory -> Facts.ref -> thm list
    14   val get_thms: theory -> xstring -> thm list
    15   val get_thm: theory -> xstring -> thm
    16   val all_thms_of: theory -> (string * thm) list
    17   val map_facts: ('a -> 'b) -> ('c * ('a list * 'd) list) list -> ('c * ('b list * 'd) list) list
    18   val burrow_fact: ('a list -> 'b list) -> ('a list * 'c) list -> ('b list * 'c) list
    19   val burrow_facts: ('a list -> 'b list) ->
    20     ('c * ('a list * 'd) list) list -> ('c * ('b list * 'd) list) list
    21   val name_multi: string -> 'a list -> (string * 'a) list
    22   val name_thm: bool -> bool -> string -> thm -> thm
    23   val name_thms: bool -> bool -> string -> thm list -> thm list
    24   val name_thmss: bool -> string -> (thm list * 'a) list -> (thm list * 'a) list
    25   val store_thms: binding * thm list -> theory -> thm list * theory
    26   val store_thm: binding * thm -> theory -> thm * theory
    27   val store_thm_open: binding * thm -> theory -> thm * theory
    28   val add_thms: ((binding * thm) * attribute list) list -> theory -> thm list * theory
    29   val add_thm: (binding * thm) * attribute list -> theory -> thm * theory
    30   val add_thmss: ((binding * thm list) * attribute list) list -> theory -> thm list list * theory
    31   val add_thms_dynamic: binding * (Context.generic -> thm list) -> theory -> theory
    32   val note_thmss: string -> (Thm.binding * (thm list * attribute list) list) list
    33     -> theory -> (string * thm list) list * theory
    34   val add_defs: bool -> ((binding * term) * attribute list) list ->
    35     theory -> thm list * theory
    36   val add_defs_unchecked: bool -> ((binding * term) * attribute list) list ->
    37     theory -> thm list * theory
    38   val add_defs_cmd: bool -> ((binding * string) * attribute list) list ->
    39     theory -> thm list * theory
    40   val add_defs_unchecked_cmd: bool -> ((binding * string) * attribute list) list ->
    41     theory -> thm list * theory
    42 end;
    43 
    44 structure Global_Theory: GLOBAL_THEORY =
    45 struct
    46 
    47 (** theory data **)
    48 
    49 structure Data = Theory_Data
    50 (
    51   type T = Facts.T;
    52   val empty = Facts.empty;
    53   val extend = I;
    54   val merge = Facts.merge;
    55 );
    56 
    57 val facts_of = Data.get;
    58 
    59 val intern_fact = Facts.intern o facts_of;
    60 val defined_fact = Facts.defined o facts_of;
    61 
    62 fun hide_fact fully name = Data.map (Facts.hide fully name);
    63 
    64 
    65 (** retrieve theorems **)
    66 
    67 fun get_fact context thy xthmref =
    68   let
    69     val facts = facts_of thy;
    70     val xname = Facts.name_of_ref xthmref;
    71     val pos = Facts.pos_of_ref xthmref;
    72 
    73     val name =
    74       (case intern_fact thy xname of
    75         "_" => "Pure.asm_rl"
    76       | name => name);
    77     val res = Facts.lookup context facts name;
    78     val _ = Theory.check_thy thy;
    79   in
    80     (case res of
    81       NONE => error ("Unknown fact " ^ quote name ^ Position.here pos)
    82     | SOME (static, ths) =>
    83         (Context_Position.report_generic context pos (Name_Space.markup (Facts.space_of facts) name);
    84          if static then ()
    85          else Context_Position.report_generic context pos (Markup.dynamic_fact name);
    86          Facts.select xthmref (map (Thm.transfer thy) ths)))
    87   end;
    88 
    89 fun get_thms thy = get_fact (Context.Theory thy) thy o Facts.named;
    90 fun get_thm thy name = Facts.the_single name (get_thms thy name);
    91 
    92 fun all_thms_of thy =
    93   Facts.fold_static (fn (_, ths) => append (map (`(Thm.get_name_hint)) ths)) (facts_of thy) [];
    94 
    95 
    96 
    97 (** store theorems **)
    98 
    99 (* fact specifications *)
   100 
   101 fun map_facts f = map (apsnd (map (apfst (map f))));
   102 fun burrow_fact f = split_list #>> burrow f #> op ~~;
   103 fun burrow_facts f = split_list ##> burrow (burrow_fact f) #> op ~~;
   104 
   105 
   106 (* naming *)
   107 
   108 fun name_multi name [x] = [(name, x)]
   109   | name_multi "" xs = map (pair "") xs
   110   | name_multi name xs = map_index (fn (i, x) => (name ^ "_" ^ string_of_int (i + 1), x)) xs;
   111 
   112 fun name_thm pre official name thm = thm
   113   |> (if not official orelse pre andalso Thm.derivation_name thm <> "" then I
   114       else Thm.name_derivation name)
   115   |> (if name = "" orelse pre andalso Thm.has_name_hint thm then I
   116       else Thm.put_name_hint name);
   117 
   118 fun name_thms pre official name xs =
   119   map (uncurry (name_thm pre official)) (name_multi name xs);
   120 
   121 fun name_thmss official name fact =
   122   burrow_fact (name_thms true official name) fact;
   123 
   124 
   125 (* enter_thms *)
   126 
   127 fun register_proofs thms thy = (thms, Thm.register_proofs thms thy);
   128 
   129 fun enter_thms pre_name post_name app_att (b, thms) thy =
   130   if Binding.is_empty b
   131   then app_att thms thy |-> register_proofs
   132   else
   133     let
   134       val name = Sign.full_name thy b;
   135       val (thms', thy') = app_att (pre_name name thms) thy |>> post_name name |-> register_proofs;
   136       val thms'' = map (Thm.transfer thy') thms';
   137       val thy'' = thy' |> Data.map
   138         (Facts.add_static (Context.Theory thy') {strict = true, index = false} (b, thms'') #> snd);
   139     in (thms'', thy'') end;
   140 
   141 
   142 (* store_thm(s) *)
   143 
   144 fun store_thms (b, thms) =
   145   enter_thms (name_thms true true) (name_thms false true) pair (b, thms);
   146 
   147 fun store_thm (b, th) = store_thms (b, [th]) #>> the_single;
   148 
   149 fun store_thm_open (b, th) =
   150   enter_thms (name_thms true false) (name_thms false false) pair (b, [th]) #>> the_single;
   151 
   152 
   153 (* add_thms(s) *)
   154 
   155 fun add_thms_atts pre_name ((b, thms), atts) =
   156   enter_thms pre_name (name_thms false true) (fold_map (Thm.theory_attributes atts)) (b, thms);
   157 
   158 fun gen_add_thmss pre_name =
   159   fold_map (add_thms_atts pre_name);
   160 
   161 fun gen_add_thms pre_name args =
   162   apfst (map hd) o gen_add_thmss pre_name (map (apfst (apsnd single)) args);
   163 
   164 val add_thmss = gen_add_thmss (name_thms true true);
   165 val add_thms = gen_add_thms (name_thms true true);
   166 val add_thm = yield_singleton add_thms;
   167 
   168 
   169 (* add_thms_dynamic *)
   170 
   171 fun add_thms_dynamic (b, f) thy = thy
   172   |> Data.map (Facts.add_dynamic (Context.Theory thy) (b, f) #> snd);
   173 
   174 
   175 (* note_thmss *)
   176 
   177 fun note_thmss kind = fold_map (fn ((b, more_atts), facts) => fn thy =>
   178   let
   179     val name = Sign.full_name thy b;
   180     fun app (ths, atts) =
   181       fold_map (Thm.theory_attributes (surround (Thm.kind kind) (atts @ more_atts))) ths;
   182     val (thms, thy') =
   183       enter_thms (name_thmss true) (name_thms false true) (apfst flat oo fold_map app)
   184         (b, facts) thy;
   185   in ((name, thms), thy') end);
   186 
   187 
   188 (* store axioms as theorems *)
   189 
   190 local
   191 
   192 fun no_read _ (_, t) = t;
   193 
   194 fun read ctxt (b, str) =
   195   Syntax.read_prop ctxt str handle ERROR msg =>
   196     cat_error msg ("The error(s) above occurred in definition " ^ Binding.print b);
   197 
   198 fun add prep unchecked overloaded = fold_map (fn ((b, raw_prop), atts) => fn thy =>
   199   let
   200     val ctxt = Syntax.init_pretty_global thy;
   201     val prop = prep ctxt (b, raw_prop);
   202     val ((_, def), thy') = Thm.add_def ctxt unchecked overloaded (b, prop) thy;
   203     val thm = def
   204       |> Thm.forall_intr_frees
   205       |> Thm.forall_elim_vars 0
   206       |> Thm.varifyT_global;
   207   in yield_singleton (gen_add_thms (K I)) ((b, thm), atts) thy' end);
   208 
   209 in
   210 
   211 val add_defs = add no_read false;
   212 val add_defs_unchecked = add no_read true;
   213 val add_defs_cmd = add read false;
   214 val add_defs_unchecked_cmd = add read true;
   215 
   216 end;
   217 
   218 end;