--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/global_theory.ML Mon Sep 20 16:05:25 2010 +0200
@@ -0,0 +1,224 @@
+(* Title: Pure/global_theory.ML
+ Author: Makarius
+
+Global theory content: stored facts.
+*)
+
+signature GLOBAL_THEORY =
+sig
+ val facts_of: theory -> Facts.T
+ val intern_fact: theory -> xstring -> string
+ val defined_fact: theory -> string -> bool
+ val hide_fact: bool -> string -> theory -> theory
+ val join_proofs: theory -> unit
+ val get_fact: Context.generic -> theory -> Facts.ref -> thm list
+ val get_thms: theory -> xstring -> thm list
+ val get_thm: theory -> xstring -> thm
+ val all_thms_of: theory -> (string * thm) list
+ val map_facts: ('a -> 'b) -> ('c * ('a list * 'd) list) list -> ('c * ('b list * 'd) list) list
+ val burrow_fact: ('a list -> 'b list) -> ('a list * 'c) list -> ('b list * 'c) list
+ val burrow_facts: ('a list -> 'b list) ->
+ ('c * ('a list * 'd) list) list -> ('c * ('b list * 'd) list) list
+ val name_multi: string -> 'a list -> (string * 'a) list
+ val name_thm: bool -> bool -> string -> thm -> thm
+ val name_thms: bool -> bool -> string -> thm list -> thm list
+ val name_thmss: bool -> string -> (thm list * 'a) list -> (thm list * 'a) list
+ val store_thms: binding * thm list -> theory -> thm list * theory
+ val store_thm: binding * thm -> theory -> thm * theory
+ val store_thm_open: binding * thm -> theory -> thm * theory
+ val add_thms: ((binding * thm) * attribute list) list -> theory -> thm list * theory
+ val add_thm: (binding * thm) * attribute list -> theory -> thm * theory
+ val add_thmss: ((binding * thm list) * attribute list) list -> theory -> thm list list * theory
+ val add_thms_dynamic: binding * (Context.generic -> thm list) -> theory -> theory
+ val note_thmss: string -> (Thm.binding * (thm list * attribute list) list) list
+ -> theory -> (string * thm list) list * theory
+ val add_defs: bool -> ((binding * term) * attribute list) list ->
+ theory -> thm list * theory
+ val add_defs_unchecked: bool -> ((binding * term) * attribute list) list ->
+ theory -> thm list * theory
+ val add_defs_cmd: bool -> ((binding * string) * attribute list) list ->
+ theory -> thm list * theory
+ val add_defs_unchecked_cmd: bool -> ((binding * string) * attribute list) list ->
+ theory -> thm list * theory
+end;
+
+structure Global_Theory: GLOBAL_THEORY =
+struct
+
+(** theory data **)
+
+structure Data = Theory_Data
+(
+ type T = Facts.T * thm list;
+ val empty = (Facts.empty, []);
+ fun extend (facts, _) = (facts, []);
+ fun merge ((facts1, _), (facts2, _)) = (Facts.merge (facts1, facts2), []);
+);
+
+
+(* facts *)
+
+val facts_of = #1 o Data.get;
+
+val intern_fact = Facts.intern o facts_of;
+val defined_fact = Facts.defined o facts_of;
+
+fun hide_fact fully name = Data.map (apfst (Facts.hide fully name));
+
+
+(* proofs *)
+
+fun register_proofs (thy, thms) = (Data.map (apsnd (append thms)) thy, thms);
+
+fun join_proofs thy = Thm.join_proofs (rev (#2 (Data.get thy)));
+
+
+
+(** retrieve theorems **)
+
+fun get_fact context thy xthmref =
+ let
+ val xname = Facts.name_of_ref xthmref;
+ val pos = Facts.pos_of_ref xthmref;
+
+ val name = intern_fact thy xname;
+ val res = Facts.lookup context (facts_of thy) name;
+ val _ = Theory.check_thy thy;
+ in
+ (case res of
+ NONE => error ("Unknown fact " ^ quote name ^ Position.str_of pos)
+ | SOME (static, ths) =>
+ (Position.report pos ((if static then Markup.fact else Markup.dynamic_fact) name);
+ Facts.select xthmref (map (Thm.transfer thy) ths)))
+ end;
+
+fun get_thms thy = get_fact (Context.Theory thy) thy o Facts.named;
+fun get_thm thy name = Facts.the_single name (get_thms thy name);
+
+fun all_thms_of thy =
+ Facts.fold_static (fn (_, ths) => append (map (`(Thm.get_name_hint)) ths)) (facts_of thy) [];
+
+
+
+(** store theorems **)
+
+(* fact specifications *)
+
+fun map_facts f = map (apsnd (map (apfst (map f))));
+fun burrow_fact f = split_list #>> burrow f #> op ~~;
+fun burrow_facts f = split_list ##> burrow (burrow_fact f) #> op ~~;
+
+
+(* naming *)
+
+fun name_multi name [x] = [(name, x)]
+ | name_multi "" xs = map (pair "") xs
+ | name_multi name xs = map_index (fn (i, x) => (name ^ "_" ^ string_of_int (i + 1), x)) xs;
+
+fun name_thm pre official name thm = thm
+ |> not (Thm.derivation_name thm <> "" andalso pre orelse not official) ? Thm.name_derivation name
+ |> (if Thm.has_name_hint thm andalso pre orelse name = "" then I else Thm.put_name_hint name);
+
+fun name_thms pre official name xs =
+ map (uncurry (name_thm pre official)) (name_multi name xs);
+
+fun name_thmss official name fact =
+ burrow_fact (name_thms true official name) fact;
+
+
+(* enter_thms *)
+
+fun enter_thms pre_name post_name app_att (b, thms) thy =
+ if Binding.is_empty b
+ then swap (register_proofs (app_att (thy, thms)))
+ else
+ let
+ val naming = Sign.naming_of thy;
+ val name = Name_Space.full_name naming b;
+ val (thy', thms') =
+ register_proofs (apsnd (post_name name) (app_att (thy, pre_name name thms)));
+ val thms'' = map (Thm.transfer thy') thms';
+ val thy'' = thy' |> (Data.map o apfst) (Facts.add_global naming (b, thms'') #> snd);
+ in (thms'', thy'') end;
+
+
+(* store_thm(s) *)
+
+fun store_thms (b, thms) =
+ enter_thms (name_thms true true) (name_thms false true) I (b, thms);
+
+fun store_thm (b, th) = store_thms (b, [th]) #>> the_single;
+
+fun store_thm_open (b, th) =
+ enter_thms (name_thms true false) (name_thms false false) I (b, [th]) #>> the_single;
+
+
+(* add_thms(s) *)
+
+fun add_thms_atts pre_name ((b, thms), atts) =
+ enter_thms pre_name (name_thms false true)
+ (Library.foldl_map (Thm.theory_attributes atts)) (b, thms);
+
+fun gen_add_thmss pre_name =
+ fold_map (add_thms_atts pre_name);
+
+fun gen_add_thms pre_name args =
+ apfst (map hd) o gen_add_thmss pre_name (map (apfst (apsnd single)) args);
+
+val add_thmss = gen_add_thmss (name_thms true true);
+val add_thms = gen_add_thms (name_thms true true);
+val add_thm = yield_singleton add_thms;
+
+
+(* add_thms_dynamic *)
+
+fun add_thms_dynamic (b, f) thy = thy
+ |> (Data.map o apfst)
+ (Facts.add_dynamic (Sign.naming_of thy) (b, f) #> snd);
+
+
+(* note_thmss *)
+
+fun note_thmss kind = fold_map (fn ((b, more_atts), ths_atts) => fn thy =>
+ let
+ val pos = Binding.pos_of b;
+ val name = Sign.full_name thy b;
+ val _ = Position.report pos (Markup.fact_decl name);
+
+ fun app (x, (ths, atts)) = Library.foldl_map (Thm.theory_attributes atts) (x, ths);
+ val (thms, thy') = thy |> enter_thms
+ (name_thmss true) (name_thms false true) (apsnd flat o Library.foldl_map app)
+ (b, map (fn (ths, atts) => (ths, surround (Thm.kind kind) (atts @ more_atts))) ths_atts);
+ in ((name, thms), thy') end);
+
+
+(* store axioms as theorems *)
+
+local
+
+fun no_read _ (_, t) = t;
+
+fun read thy (b, str) =
+ Syntax.read_prop_global thy str handle ERROR msg =>
+ cat_error msg ("The error(s) above occurred in definition " ^ quote (Binding.str_of b));
+
+fun add prep unchecked overloaded = fold_map (fn ((b, raw_prop), atts) => fn thy =>
+ let
+ val prop = prep thy (b, raw_prop);
+ val ((_, def), thy') = Thm.add_def unchecked overloaded (b, prop) thy;
+ val thm = def
+ |> Thm.forall_intr_frees
+ |> Thm.forall_elim_vars 0
+ |> Thm.varifyT_global;
+ in yield_singleton (gen_add_thms (K I)) ((b, thm), atts) thy' end);
+
+in
+
+val add_defs = add no_read false;
+val add_defs_unchecked = add no_read true;
+val add_defs_cmd = add read false;
+val add_defs_unchecked_cmd = add read true;
+
+end;
+
+end;