wenzelm@18620: (*  Title:      Pure/Isar/specification.ML
wenzelm@18620:     ID:         $Id$
wenzelm@18620:     Author:     Makarius
wenzelm@18620: 
wenzelm@18810: Common theory/locale specifications --- with type-inference and
wenzelm@18810: toplevel polymorphism.
wenzelm@18620: *)
wenzelm@18620: 
wenzelm@18620: signature SPECIFICATION =
wenzelm@18620: sig
wenzelm@18771:   val read_specification: (string * string option * mixfix) list ->
wenzelm@18954:     ((string * Attrib.src list) * string list) list -> local_theory ->
wenzelm@18771:     (((string * typ) * mixfix) list * ((string * Attrib.src list) * term list) list) *
wenzelm@18954:     local_theory
wenzelm@18771:   val cert_specification: (string * typ option * mixfix) list ->
wenzelm@18954:     ((string * Attrib.src list) * term list) list -> local_theory ->
wenzelm@18771:     (((string * typ) * mixfix) list * ((string * Attrib.src list) * term list) list) *
wenzelm@18954:     local_theory
wenzelm@18954:   val axiomatization: (string * string option * mixfix) list ->
wenzelm@18954:     ((bstring * Attrib.src list) * string list) list -> local_theory ->
wenzelm@18954:     (term list * (bstring * thm list) list) * local_theory
wenzelm@18954:   val axiomatization_i: (string * typ option * mixfix) list ->
wenzelm@18954:     ((bstring * Attrib.src list) * term list) list -> local_theory ->
wenzelm@18954:     (term list * (bstring * thm list) list) * local_theory
wenzelm@18954:   val definition:
wenzelm@18786:     ((string * string option * mixfix) option * ((string * Attrib.src list) * string)) list ->
wenzelm@18954:     local_theory -> (term * (bstring * thm)) list * local_theory
wenzelm@18954:   val definition_i:
wenzelm@18786:     ((string * typ option * mixfix) option * ((string * Attrib.src list) * term)) list ->
wenzelm@18954:     local_theory -> (term * (bstring * thm)) list * local_theory
wenzelm@19080:   val abbreviation: bool -> ((string * string option * mixfix) option * string) list ->
wenzelm@19080:     local_theory -> local_theory
wenzelm@19080:   val abbreviation_i: bool -> ((string * typ option * mixfix) option * term) list ->
wenzelm@19080:     local_theory -> local_theory
wenzelm@18620: end;
wenzelm@18620: 
wenzelm@18620: structure Specification: SPECIFICATION =
wenzelm@18620: struct
wenzelm@18620: 
wenzelm@18620: (* prepare specification *)
wenzelm@18620: 
wenzelm@18828: fun prep_specification prep_vars prep_propp prep_att raw_vars raw_specs ctxt =
wenzelm@18620:   let
wenzelm@18670:     val thy = ProofContext.theory_of ctxt;
wenzelm@18620: 
wenzelm@18670:     val (vars, vars_ctxt) = ctxt |> prep_vars raw_vars;
wenzelm@18670:     val (xs, params_ctxt) = vars_ctxt |> ProofContext.add_fixes_i vars;
wenzelm@18670:     val ((specs, vs), specs_ctxt) =
wenzelm@18620:       prep_propp (params_ctxt, map (map (rpair ([], [])) o snd) raw_specs)
wenzelm@18620:       |> swap |>> map (map fst)
wenzelm@18771:       ||>> fold_map ProofContext.inferred_param xs;
wenzelm@18620: 
wenzelm@18771:     val params = vs ~~ map #3 vars;
wenzelm@18620:     val names = map (fst o fst) raw_specs;
wenzelm@18670:     val atts = map (map (prep_att thy) o snd o fst) raw_specs;
wenzelm@18620:   in ((params, (names ~~ atts) ~~ specs), specs_ctxt) end;
wenzelm@18620: 
wenzelm@18620: fun read_specification x =
wenzelm@18771:   prep_specification ProofContext.read_vars ProofContext.read_propp Attrib.intern_src x;
wenzelm@18620: fun cert_specification x =
wenzelm@18670:   prep_specification ProofContext.cert_vars ProofContext.cert_propp (K I) x;
wenzelm@18620: 
wenzelm@18620: 
wenzelm@18771: (* axiomatization *)
wenzelm@18620: 
wenzelm@18954: fun gen_axioms prep raw_vars raw_specs ctxt =
wenzelm@18620:   let
wenzelm@18786:     val (vars, specs) = fst (prep raw_vars raw_specs ctxt);
wenzelm@18828:     val cs = map fst vars;
wenzelm@18880:     val spec_frees = member (op =) (fold (fold Term.add_frees o snd) specs []);
wenzelm@18786: 
wenzelm@18880:     val (consts, consts_ctxt) = ctxt |> LocalTheory.consts_restricted spec_frees vars;
wenzelm@18828:     val subst = Term.subst_atomic (map Free cs ~~ consts);
wenzelm@18786: 
wenzelm@18771:     val (axioms, axioms_ctxt) =
wenzelm@18771:       consts_ctxt
wenzelm@18771:       |> LocalTheory.axioms (specs |> map (fn (a, props) => (a, map subst props)))
wenzelm@18786:       ||> LocalTheory.theory (Theory.add_finals_i false (map Term.head_of consts));
wenzelm@18954:     val _ = LocalTheory.print_consts ctxt spec_frees cs;
wenzelm@18954:   in ((consts, axioms), axioms_ctxt) end;
wenzelm@18786: 
wenzelm@18954: val axiomatization = gen_axioms read_specification;
wenzelm@18954: val axiomatization_i = gen_axioms cert_specification;
wenzelm@18620: 
wenzelm@18786: 
wenzelm@18786: (* definition *)
wenzelm@18786: 
wenzelm@18954: fun gen_defs prep args ctxt =
wenzelm@18786:   let
wenzelm@18954:     fun define (raw_var, (raw_a, raw_prop)) ctxt' =
wenzelm@18786:       let
wenzelm@18954:         val (vars, [(a, [prop])]) = fst (prep (the_list raw_var) [(raw_a, [raw_prop])] ctxt');
wenzelm@18954:         val (((x, T), rhs), prove) = LocalDefs.derived_def ctxt' true prop;
wenzelm@18786:         val mx = (case vars of [] => NoSyn | [((x', _), mx)] =>
wenzelm@18786:           if x = x' then mx
wenzelm@18786:           else error ("Head of definition " ^ quote x ^ " differs from declaration " ^ quote x'));
wenzelm@18810:       in
wenzelm@18954:         ctxt'
wenzelm@18810:         |> LocalTheory.def_finish prove ((x, mx), (a, rhs))
wenzelm@18810:         |>> pair (x, T)
wenzelm@18810:       end;
wenzelm@18786: 
wenzelm@18828:     val ((cs, defs), defs_ctxt) = ctxt |> fold_map define args |>> split_list;
wenzelm@18880:     val def_frees = member (op =) (fold (Term.add_frees o fst) defs []);
wenzelm@18954:     val _ = LocalTheory.print_consts ctxt def_frees cs;
wenzelm@18954:   in (defs, defs_ctxt) end;
wenzelm@18786: 
wenzelm@18954: val definition = gen_defs read_specification;
wenzelm@18954: val definition_i = gen_defs cert_specification;
wenzelm@18786: 
wenzelm@19080: 
wenzelm@19080: (* abbreviation *)
wenzelm@19080: 
wenzelm@19080: fun gen_abbrevs prep revert args ctxt =
wenzelm@19080:   let
wenzelm@19080:     fun abbrev (raw_var, raw_prop) ctxt' =
wenzelm@19080:       let
wenzelm@19080:         val (vars, [(_, [prop])]) = fst (prep (the_list raw_var) [(("", []), [raw_prop])] ctxt');
wenzelm@19080:         val ((x, T), rhs) = #1 (LocalDefs.derived_def ctxt' false prop);
wenzelm@19080:         val mx = (case vars of [] => NoSyn | [((x', _), mx)] =>
wenzelm@19080:           if x = x' then mx
wenzelm@19080:           else error ("Head of abbreviation " ^ quote x ^ " differs from declaration " ^ quote x'));
wenzelm@19080:       in
wenzelm@19080:         ctxt'
wenzelm@19080:         |> LocalTheory.abbrev revert ((x, mx), rhs)
wenzelm@19080:         |> pair (x, T)
wenzelm@19080:       end;
wenzelm@19080: 
wenzelm@19080:     val (cs, abbrs_ctxt) = ctxt |> fold_map abbrev args;
wenzelm@19080:     val _ = LocalTheory.print_consts ctxt (K false) cs;
wenzelm@19080:   in abbrs_ctxt end;
wenzelm@19080: 
wenzelm@19080: val abbreviation = gen_abbrevs read_specification;
wenzelm@19080: val abbreviation_i = gen_abbrevs cert_specification;
wenzelm@19080: 
wenzelm@18620: end;