1 (* Title: Pure/Isar/constdefs.ML
3 Author: Makarius, Hagia Maria Sion Abbey (Jerusalem)
5 Old-style constant definitions, with type-inference and optional
6 structure context; specifications need to observe strictly sequential
7 dependencies; no support for overloading.
12 val add_constdefs: (string * string option) list *
13 ((bstring * string option * mixfix) option * ((bstring * Attrib.src list) * string)) list ->
15 val add_constdefs_i: (string * typ option) list *
16 ((bstring * typ option * mixfix) option * ((bstring * attribute list) * term)) list ->
20 structure Constdefs: CONSTDEFS =
23 (** add_constdefs(_i) **)
25 fun gen_constdef prep_vars prep_prop prep_att
26 structs (raw_decl, ((raw_name, raw_atts), raw_prop)) thy =
28 fun err msg ts = error (cat_lines (msg :: map (Sign.string_of_term thy) ts));
30 val thy_ctxt = ProofContext.init thy;
31 val struct_ctxt = #2 (ProofContext.add_fixes_i structs thy_ctxt);
32 val ((d, mx), var_ctxt) =
34 NONE => ((NONE, NoSyn), struct_ctxt)
36 struct_ctxt |> prep_vars [raw_var] |-> (fn [(x, T, mx)] =>
37 ProofContext.add_fixes_legacy [(x, T, mx)] #> snd #> pair (SOME x, mx)));
39 val prop = prep_prop var_ctxt raw_prop;
40 val (c, T) = #1 (LocalDefs.cert_def thy_ctxt (Logic.strip_imp_concl prop));
41 val _ = (case d of NONE => () | SOME c' =>
43 err ("Head of definition " ^ quote c ^ " differs from declaration " ^ quote c') []
46 val def = Term.subst_atomic [(Free (c, T), Const (Sign.full_name thy c, T))] prop;
47 val name = Thm.def_name_optional c raw_name;
48 val atts = map (prep_att thy) raw_atts;
52 |> Sign.add_consts_i [(c, T, mx)]
53 |> PureThy.add_defs_i false [((name, def), atts)]
54 |-> (fn [thm] => Code.add_default_func thm);
55 in ((c, T), thy') end;
57 fun gen_constdefs prep_vars prep_prop prep_att (raw_structs, specs) thy =
59 val ctxt = ProofContext.init thy;
60 val (structs, _) = prep_vars (map (fn (x, T) => (x, T, Structure)) raw_structs) ctxt;
61 val (decls, thy') = fold_map (gen_constdef prep_vars prep_prop prep_att structs) specs thy;
62 in Pretty.writeln (ProofDisplay.pretty_consts ctxt (K true) decls); thy' end;
64 val add_constdefs = gen_constdefs ProofContext.read_vars_legacy
65 ProofContext.read_prop_legacy Attrib.attribute;
66 val add_constdefs_i = gen_constdefs ProofContext.cert_vars_legacy ProofContext.cert_prop (K I);