(* 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 begin_recent_proofs: theory -> theory
val join_recent_proofs: theory -> unit
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 **)
type proofs = thm list * unit lazy; (*accumulated thms, persistent join*)
val empty_proofs: proofs = ([], Lazy.value ());
fun add_proofs more_thms ((thms, _): proofs) =
let val thms' = fold cons more_thms thms
in (thms', Lazy.lazy (fn () => Thm.join_proofs (rev thms'))) end;
fun force_proofs ((_, prfs): proofs) = Lazy.force prfs;
structure Data = Theory_Data
(
type T = Facts.T * (proofs * proofs); (*facts, recent proofs, all proofs of theory node*)
val empty = (Facts.empty, (empty_proofs, empty_proofs));
fun extend (facts, _) = (facts, snd empty);
fun merge ((facts1, _), (facts2, _)) = (Facts.merge (facts1, facts2), snd empty);
);
(* 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));
(* forked proofs *)
fun register_proofs thms thy = (thms, Data.map (apsnd (pairself (add_proofs thms))) thy);
val begin_recent_proofs = Data.map (apsnd (apfst (K empty_proofs)));
val join_recent_proofs = force_proofs o #1 o #2 o Data.get;
val join_proofs = force_proofs o #2 o #2 o Data.get;
(** retrieve theorems **)
fun get_fact context thy xthmref =
let
val facts = facts_of thy;
val xname = Facts.name_of_ref xthmref;
val pos = Facts.pos_of_ref xthmref;
val name =
(case intern_fact thy xname of
"_" => "Pure.asm_rl"
| name => name);
val res = Facts.lookup context facts name;
val _ = Theory.check_thy thy;
in
(case res of
NONE => error ("Unknown fact " ^ quote name ^ Position.str_of pos)
| SOME (static, ths) =>
(Context_Position.report_generic context pos (Name_Space.markup (Facts.space_of facts) name);
if static then ()
else Context_Position.report_generic context pos (Isabelle_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
|> (if not official orelse pre andalso Thm.derivation_name thm <> "" then I
else Thm.name_derivation name)
|> (if name = "" orelse pre andalso Thm.has_name_hint thm 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 app_att thms thy |-> register_proofs
else
let
val name = Sign.full_name thy b;
val (thms', thy') = app_att (pre_name name thms) thy |>> post_name name |-> register_proofs;
val thms'' = map (Thm.transfer thy') thms';
val thy'' = thy'
|> (Data.map o apfst) (Facts.add_global (Context.Theory thy') (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) pair (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) pair (b, [th]) #>> the_single;
(* add_thms(s) *)
fun add_thms_atts pre_name ((b, thms), atts) =
enter_thms pre_name (name_thms false true) (fold_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 (Context.Theory thy) (b, f) #> snd);
(* note_thmss *)
fun note_thmss kind = fold_map (fn ((b, more_atts), facts) => fn thy =>
let
val name = Sign.full_name thy b;
fun app (ths, atts) =
fold_map (Thm.theory_attributes (surround (Thm.kind kind) (atts @ more_atts))) ths;
val (thms, thy') =
enter_thms (name_thmss true) (name_thms false true) (apfst flat oo fold_map app)
(b, facts) thy;
in ((name, thms), thy') end);
(* store axioms as theorems *)
local
fun no_read _ (_, t) = t;
fun read ctxt (b, str) =
Syntax.read_prop ctxt str handle ERROR msg =>
cat_error msg ("The error(s) above occurred in definition " ^ Binding.print b);
fun add prep unchecked overloaded = fold_map (fn ((b, raw_prop), atts) => fn thy =>
let
val ctxt = Syntax.init_pretty_global thy;
val prop = prep ctxt (b, raw_prop);
val ((_, def), thy') = Thm.add_def ctxt 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;