added tactical result;
simplified obtain_export: no Seq.seq, no lifting of result prems;
tuned;
(* Title: Pure/Isar/specification.ML
ID: $Id$
Author: Makarius
Common local_theory specifications --- with type-inference and
toplevel polymorphism.
*)
signature SPECIFICATION =
sig
val read_specification: (string * string option * mixfix) list ->
((string * Attrib.src list) * string list) list -> local_theory ->
(((string * typ) * mixfix) list * ((string * Attrib.src list) * term list) list) *
local_theory
val cert_specification: (string * typ option * mixfix) list ->
((string * Attrib.src list) * term list) list -> local_theory ->
(((string * typ) * mixfix) list * ((string * Attrib.src list) * term list) list) *
local_theory
val axiomatization: (string * string option * mixfix) list ->
((bstring * Attrib.src list) * string list) list -> local_theory ->
(term list * (bstring * thm list) list) * local_theory
val axiomatization_i: (string * typ option * mixfix) list ->
((bstring * Attrib.src list) * term list) list -> local_theory ->
(term list * (bstring * thm list) list) * local_theory
val definition:
((string * string option * mixfix) option * ((string * Attrib.src list) * string)) list ->
local_theory -> (term * (bstring * thm)) list * local_theory
val definition_i:
((string * typ option * mixfix) option * ((string * Attrib.src list) * term)) list ->
local_theory -> (term * (bstring * thm)) list * local_theory
val abbreviation: string * bool -> ((string * string option * mixfix) option * string) list ->
local_theory -> local_theory
val abbreviation_i: string * bool -> ((string * typ option * mixfix) option * term) list ->
local_theory -> local_theory
val const_syntax: string * bool -> (xstring * mixfix) list -> local_theory -> local_theory
val const_syntax_i: string * bool -> (string * mixfix) list -> local_theory -> local_theory
end;
structure Specification: SPECIFICATION =
struct
(* prepare specification *)
fun prep_specification prep_vars prep_propp prep_att raw_vars raw_specs ctxt =
let
val thy = ProofContext.theory_of ctxt;
val (vars, vars_ctxt) = ctxt |> prep_vars raw_vars;
val (xs, params_ctxt) = vars_ctxt |> ProofContext.add_fixes_i vars;
val ((specs, vs), specs_ctxt) =
prep_propp (params_ctxt, map (map (rpair []) o snd) raw_specs)
|> swap |>> map (map fst)
||>> fold_map ProofContext.inferred_param xs;
val params = vs ~~ map #3 vars;
val names = map (fst o fst) raw_specs;
val atts = map (map (prep_att thy) o snd o fst) raw_specs;
in ((params, (names ~~ atts) ~~ specs), specs_ctxt) end;
fun read_specification x =
prep_specification ProofContext.read_vars ProofContext.read_propp Attrib.intern_src x;
fun cert_specification x =
prep_specification ProofContext.cert_vars ProofContext.cert_propp (K I) x;
(* axiomatization *)
fun gen_axioms prep raw_vars raw_specs ctxt =
let
val (vars, specs) = fst (prep raw_vars raw_specs ctxt);
val cs = map fst vars;
val spec_frees = member (op =) (fold (fold Term.add_frees o snd) specs []);
val (consts, consts_ctxt) = ctxt |> LocalTheory.consts_restricted spec_frees vars;
val subst = Term.subst_atomic (map Free cs ~~ consts);
val (axioms, axioms_ctxt) =
consts_ctxt
|> LocalTheory.axioms (specs |> map (fn (a, props) => (a, map subst props)))
||> LocalTheory.theory (Theory.add_finals_i false (map Term.head_of consts));
val _ = LocalTheory.print_consts ctxt spec_frees cs;
in ((consts, axioms), axioms_ctxt) end;
val axiomatization = gen_axioms read_specification;
val axiomatization_i = gen_axioms cert_specification;
(* definition *)
fun gen_defs prep args ctxt =
let
fun define (raw_var, (raw_a, raw_prop)) ctxt' =
let
val (vars, [(a, [prop])]) = fst (prep (the_list raw_var) [(raw_a, [raw_prop])] ctxt');
val (((x, T), rhs), prove) = LocalDefs.derived_def ctxt' true prop;
val mx = (case vars of [] => NoSyn | [((x', _), mx)] =>
if x = x' then mx
else error ("Head of definition " ^ quote x ^ " differs from declaration " ^ quote x'));
in
ctxt'
|> LocalTheory.def_finish prove ((x, mx), (a, rhs))
|>> pair (x, T)
end;
val ((cs, defs), defs_ctxt) = ctxt |> fold_map define args |>> split_list;
val def_frees = member (op =) (fold (Term.add_frees o fst) defs []);
val _ = LocalTheory.print_consts ctxt def_frees cs;
in (defs, defs_ctxt) end;
val definition = gen_defs read_specification;
val definition_i = gen_defs cert_specification;
(* abbreviation *)
fun gen_abbrevs prep mode args ctxt =
let
fun abbrev (raw_var, raw_prop) ctxt' =
let
val ((vars, [(_, [prop])]), _) =
prep (the_list raw_var) [(("", []), [raw_prop])]
(ctxt' |> ProofContext.expand_abbrevs false);
val ((x, T), rhs) = LocalDefs.abs_def (#2 (LocalDefs.cert_def ctxt' prop));
val mx = (case vars of [] => NoSyn | [((x', _), mx)] =>
if x = x' then mx
else error ("Head of abbreviation " ^ quote x ^ " differs from declaration " ^ quote x'));
in
ctxt'
|> LocalTheory.abbrevs mode [((x, mx), rhs)]
|> pair (x, T)
end;
val (cs, result_ctxt) = ctxt
|> ProofContext.set_syntax_mode mode
|> fold_map abbrev args
||> ProofContext.restore_syntax_mode ctxt;
val _ = LocalTheory.print_consts ctxt (K false) cs;
in result_ctxt end;
val abbreviation = gen_abbrevs read_specification;
val abbreviation_i = gen_abbrevs cert_specification;
(* const syntax *)
fun gen_syntax intern_const mode raw_args ctxt =
let val args = raw_args |> map (apfst (intern_const (ProofContext.consts_of ctxt)))
in ctxt |> LocalTheory.syntax mode args end;
val const_syntax = gen_syntax Consts.intern;
val const_syntax_i = gen_syntax (K I);
end;