author | haftmann |
Wed, 31 Jan 2007 16:05:16 +0100 | |
changeset 22222 | bb07dd6cb1b9 |
parent 22209 | 86b688409dde |
child 22302 | bf5bdb7f7607 |
permissions | -rw-r--r-- |
18168 | 1 |
(* Title: Pure/Tools/class_package.ML |
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ID: $Id$ |
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Author: Florian Haftmann, TU Muenchen |
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Type classes derived from primitive axclasses and locales. |
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*) |
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signature CLASS_PACKAGE = |
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sig |
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val class: bstring -> class list -> Element.context_i Locale.element list -> theory -> |
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string * Proof.context |
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val instance_arity: ((bstring * sort list) * sort) list |
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-> ((bstring * attribute list) * term) list |
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-> theory -> Proof.state |
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val prove_instance_arity: tactic -> ((string * sort list) * sort) list |
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-> ((bstring * attribute list) * term) list |
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-> theory -> theory |
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val instance_sort: class * sort -> theory -> Proof.state |
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val prove_instance_sort: tactic -> class * sort -> theory -> theory |
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val assume_arities_of_sort: theory -> ((string * sort list) * sort) list -> typ * sort -> bool |
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val assume_arities_thy: theory -> ((string * sort list) * sort) list -> (theory -> 'a) -> 'a |
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(*'a must not keep any reference to theory*) |
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(* experimental class target *) |
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val add_def: class * thm -> theory -> theory |
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val export_typ: theory -> class -> typ -> typ |
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val export_def: theory -> class -> term -> term |
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val export_thm: theory -> class -> thm -> thm |
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||
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val print_classes: theory -> unit |
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val intro_classes_tac: thm list -> tactic |
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val default_intro_classes_tac: thm list -> tactic |
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end; |
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structure ClassPackage : CLASS_PACKAGE = |
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struct |
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(** axclasses with implicit parameter handling **) |
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(* axclass instances *) |
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local |
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fun gen_instance mk_prop add_thm after_qed insts thy = |
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let |
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fun after_qed' results = |
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ProofContext.theory ((fold o fold) add_thm results #> after_qed); |
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in |
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thy |
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|> ProofContext.init |
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|> Proof.theorem_i NONE after_qed' ((map (fn t => [(t, [])]) o maps (mk_prop thy)) insts) |
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end; |
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in |
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val axclass_instance_arity = |
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gen_instance (Logic.mk_arities oo Sign.cert_arity) AxClass.add_arity; |
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val axclass_instance_sort = |
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gen_instance (single oo (Logic.mk_classrel oo AxClass.cert_classrel)) |
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AxClass.add_classrel I o single; |
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end; (* local *) |
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(* introducing axclasses with implicit parameter handling *) |
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fun axclass_params (name, raw_superclasses) raw_consts raw_dep_axioms thy = |
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let |
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val superclasses = map (Sign.certify_class thy) raw_superclasses; |
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val consts = (map o apfst o apsnd) (Sign.certify_typ thy) raw_consts; |
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fun add_const ((c, ty), syn) = |
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Sign.add_consts_authentic [(c, ty, syn)] #> pair (Sign.full_name thy c, ty); |
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fun mk_axioms cs thy = |
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raw_dep_axioms thy cs |
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|> (map o apsnd o map) (Sign.cert_prop thy) |
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|> rpair thy; |
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fun add_constraint class (c, ty) = |
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Sign.add_const_constraint_i (c, SOME (Term.map_type_tfree (fn (v, _) => TFree (v, [class])) ty)); |
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in |
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thy |
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|> fold_map add_const consts |
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|-> (fn cs => mk_axioms cs |
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#-> (fn axioms => AxClass.define_class_i (name, superclasses) (map fst cs) axioms |
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#-> (fn class => `(fn thy => AxClass.get_definition thy class) |
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#-> (fn {intro, axioms, ...} => fold (add_constraint class) cs |
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#> pair (class, ((intro, axioms), cs)))))) |
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end; |
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||
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(* contexts with arity assumptions *) |
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fun assume_arities_of_sort thy arities ty_sort = |
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let |
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val pp = Sign.pp thy; |
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val algebra = Sign.classes_of thy |
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|> fold (fn ((tyco, asorts), sort) => |
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Sorts.add_arities pp (tyco, map (fn class => (class, asorts)) sort)) arities; |
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in Sorts.of_sort algebra ty_sort end; |
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fun assume_arities_thy thy arities f = |
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let |
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val thy_read = (fold (fn ((tyco, asorts), sort) |
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=> Sign.primitive_arity (tyco, asorts, sort)) arities o Theory.copy) thy |
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in f thy_read end; |
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||
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(* instances with implicit parameter handling *) |
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local |
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fun gen_read_def thy prep_att read_def ((raw_name, raw_atts), raw_t) = |
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let |
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val (_, t) = read_def thy (raw_name, raw_t); |
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val ((c, ty), _) = Sign.cert_def (Sign.pp thy) t; |
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val atts = map (prep_att thy) raw_atts; |
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val insts = (Consts.typargs (Sign.consts_of thy) (c, ty)) |
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val name = case raw_name |
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of "" => NONE |
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| _ => SOME raw_name; |
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in (c, (insts, ((name, t), atts))) end; |
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fun read_def_e thy = gen_read_def thy Attrib.attribute read_axm; |
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fun read_def thy = gen_read_def thy (K I) (K I); |
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fun gen_instance_arity prep_arity prep_att read_def do_proof raw_arities raw_defs theory = |
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let |
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fun prep_arity' ((tyco, asorts), sort) = prep_arity theory (tyco, asorts, sort); |
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val arities = map prep_arity' raw_arities; |
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val arities_pair = map (fn (tyco, asorts, sort) => ((tyco, asorts), sort)) arities; |
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val _ = if null arities then error "at least one arity must be given" else (); |
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val _ = case (duplicates (op =) o map #1) arities |
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of [] => () |
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| dupl_tycos => error ("type constructors occur more than once in arities: " |
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^ (commas o map quote) dupl_tycos); |
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val super_sort = (Graph.all_succs o #classes o Sorts.rep_algebra o Sign.classes_of) theory |
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fun get_consts_class tyco ty class = |
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let |
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val cs = (these o Option.map snd o try (AxClass.params_of_class theory)) class; |
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val subst_ty = map_type_tfree (K ty); |
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in |
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map (fn (c, ty) => (c, ((tyco, class), subst_ty ty))) cs |
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end; |
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fun get_consts_sort (tyco, asorts, sort) = |
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let |
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val ty = Type (tyco, map (fn (v, sort) => TVar ((v, 0), sort)) (Name.names Name.context "'a" asorts)) |
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in maps (get_consts_class tyco ty) (super_sort sort) end; |
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val cs = maps get_consts_sort arities; |
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fun mk_typnorm thy (ty, ty_sc) = |
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case try (Sign.typ_match thy (Logic.varifyT ty_sc, ty)) Vartab.empty |
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of SOME env => SOME (Logic.varifyT #> Envir.typ_subst_TVars env #> Logic.unvarifyT) |
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| NONE => NONE; |
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fun read_defs defs cs thy_read = |
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let |
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fun read raw_def cs = |
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let |
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val (c, (inst, ((name_opt, t), atts))) = read_def thy_read raw_def; |
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val ty = Consts.instance (Sign.consts_of thy_read) (c, inst); |
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val ((tyco, class), ty') = case AList.lookup (op =) cs c |
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of NONE => error ("superfluous definition for constant " ^ quote c) |
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| SOME class_ty => class_ty; |
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val name = case name_opt |
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of NONE => Thm.def_name (Logic.name_arity (tyco, [], c)) |
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| SOME name => name; |
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val t' = case mk_typnorm thy_read (ty', ty) |
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of NONE => error ("superfluous definition for constant " ^ |
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quote c ^ "::" ^ Sign.string_of_typ thy_read ty) |
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| SOME norm => map_types norm t |
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in (((class, tyco), ((name, t'), atts)), AList.delete (op =) c cs) end; |
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in fold_map read defs cs end; |
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val (defs, _) = assume_arities_thy theory arities_pair (read_defs raw_defs cs); |
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fun get_remove_contraint c thy = |
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let |
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val ty = Sign.the_const_constraint thy c; |
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in |
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thy |
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|> Sign.add_const_constraint_i (c, NONE) |
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|> pair (c, Logic.unvarifyT ty) |
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end; |
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fun add_defs defs thy = |
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thy |
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|> PureThy.add_defs_i true (map snd defs) |
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|-> (fn thms => pair (map fst defs ~~ thms)); |
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fun after_qed cs thy = |
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thy |
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|> fold Sign.add_const_constraint_i (map (apsnd SOME) cs); |
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in |
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theory |
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|> fold_map get_remove_contraint (map fst cs |> distinct (op =)) |
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||>> add_defs defs |
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|-> (fn (cs, _) => do_proof (after_qed cs) arities) |
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end; |
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||
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fun instance_arity_e' do_proof = gen_instance_arity Sign.read_arity Attrib.attribute |
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read_def_e do_proof; |
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fun instance_arity' do_proof = gen_instance_arity Sign.cert_arity (K I) |
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read_def do_proof; |
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fun tactic_proof tac after_qed arities = |
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fold (fn arity => AxClass.prove_arity arity tac) arities |
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#> after_qed; |
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|
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in |
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val instance_arity_e = instance_arity_e' axclass_instance_arity; |
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val instance_arity = instance_arity' axclass_instance_arity; |
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val prove_instance_arity = instance_arity' o tactic_proof; |
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||
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end; (* local *) |
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(** combining locales and axclasses **) |
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||
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(* theory data *) |
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||
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datatype class_data = ClassData of { |
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locale: string, |
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consts: (string * string) list |
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(*locale parameter ~> toplevel theory constant*), |
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propnames: string list, |
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(*for ad-hoc instance in*) |
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defs: thm list |
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(*for experimental class target*) |
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}; |
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||
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fun rep_classdata (ClassData c) = c; |
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||
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structure ClassData = TheoryDataFun ( |
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struct |
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val name = "Pure/classes"; |
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type T = class_data Graph.T; |
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val empty = Graph.empty; |
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val copy = I; |
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val extend = I; |
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fun merge _ = Graph.merge (K true); |
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fun print _ _ = (); |
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end |
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); |
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||
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val _ = Context.add_setup ClassData.init; |
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||
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||
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(* queries *) |
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||
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val lookup_class_data = Option.map rep_classdata oo try o Graph.get_node o ClassData.get; |
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val is_class = can o Graph.get_node o ClassData.get; |
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fun the_class_data thy class = |
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case lookup_class_data thy class |
|
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of NONE => error ("undeclared class " ^ quote class) |
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| SOME data => data; |
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251 |
||
252 |
fun the_ancestry thy = Graph.all_succs (ClassData.get thy); |
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253 |
||
254 |
fun the_parm_map thy class = |
|
255 |
let |
|
256 |
val const_typs = (#params o AxClass.get_definition thy) class; |
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val const_names = (#consts o the_class_data thy) class; |
|
258 |
in |
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259 |
map (apsnd (fn c => (c, (the o AList.lookup (op =) const_typs) c))) const_names |
|
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end; |
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261 |
||
262 |
val the_propnames = #propnames oo the_class_data; |
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263 |
||
264 |
fun print_classes thy = |
|
265 |
let |
|
266 |
val algebra = Sign.classes_of thy; |
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val arities = |
|
268 |
Symtab.empty |
|
269 |
|> Symtab.fold (fn (tyco, arities) => fold (fn (class, _) => |
|
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Symtab.map_default (class, []) (insert (op =) tyco)) arities) |
|
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((#arities o Sorts.rep_algebra) algebra); |
|
272 |
val the_arities = these o Symtab.lookup arities; |
|
273 |
fun mk_arity class tyco = |
|
274 |
let |
|
275 |
val Ss = Sorts.mg_domain algebra tyco [class]; |
|
276 |
in Sign.pretty_arity thy (tyco, Ss, [class]) end; |
|
277 |
fun mk_param (c, ty) = Pretty.str (Sign.extern_const thy c ^ " :: " |
|
278 |
^ setmp show_sorts false (Sign.string_of_typ thy o Type.strip_sorts) ty); |
|
279 |
fun mk_entry class = (Pretty.block o Pretty.fbreaks o map_filter I) [ |
|
280 |
(SOME o Pretty.str) ("class " ^ class ^ ":"), |
|
281 |
(SOME o Pretty.block) [Pretty.str "supersort: ", |
|
282 |
(Sign.pretty_sort thy o Sign.certify_sort thy o Sign.super_classes thy) class], |
|
283 |
Option.map (Pretty.str o prefix "locale: " o #locale) (lookup_class_data thy class), |
|
284 |
((fn [] => NONE | ps => (SOME o Pretty.block o Pretty.fbreaks) (Pretty.str "parameters:" :: ps)) o map mk_param |
|
285 |
o these o Option.map #params o try (AxClass.get_definition thy)) class, |
|
286 |
(SOME o Pretty.block o Pretty.breaks) [ |
|
287 |
Pretty.str "instances:", |
|
288 |
Pretty.list "" "" (map (mk_arity class) (the_arities class)) |
|
289 |
] |
|
290 |
] |
|
291 |
in |
|
292 |
(Pretty.writeln o Pretty.chunks o separate (Pretty.str "") o map mk_entry o Sorts.all_classes) |
|
293 |
algebra |
|
294 |
end; |
|
295 |
||
296 |
||
297 |
(* updaters *) |
|
298 |
||
299 |
fun add_class_data ((class, superclasses), (locale, consts, propnames)) = |
|
300 |
ClassData.map ( |
|
301 |
Graph.new_node (class, ClassData { |
|
302 |
locale = locale, |
|
303 |
consts = consts, |
|
304 |
propnames = propnames, |
|
305 |
defs = []}) |
|
306 |
#> fold (curry Graph.add_edge class) superclasses |
|
307 |
); |
|
308 |
||
309 |
fun add_def (class, thm) = |
|
310 |
(ClassData.map o Graph.map_node class) |
|
22182 | 311 |
(fn ClassData { locale, consts, propnames, defs } => ClassData { locale = locale, |
21954 | 312 |
consts = consts, propnames = propnames, defs = thm :: defs }); |
313 |
||
314 |
||
315 |
(* tactics and methods *) |
|
316 |
||
317 |
fun intro_classes_tac facts st = |
|
22182 | 318 |
let |
319 |
val thy = Thm.theory_of_thm st; |
|
320 |
val ctxt = ProofContext.init thy; |
|
321 |
val intro_classes_tac = ALLGOALS |
|
322 |
(Method.insert_tac facts THEN' REPEAT_ALL_NEW (resolve_tac (AxClass.class_intros thy))) |
|
323 |
THEN Tactic.distinct_subgoals_tac; |
|
324 |
val intro_locales_tac = Locale.intro_locales_tac true ctxt facts; |
|
325 |
in |
|
326 |
(intro_classes_tac THEN TRY intro_locales_tac) st |
|
327 |
end; |
|
21954 | 328 |
|
329 |
fun default_intro_classes_tac [] = intro_classes_tac [] |
|
330 |
| default_intro_classes_tac _ = Tactical.no_tac; (*no error message!*) |
|
331 |
||
332 |
fun default_tac rules ctxt facts = |
|
333 |
HEADGOAL (Method.some_rule_tac rules ctxt facts) ORELSE |
|
334 |
default_intro_classes_tac facts; |
|
335 |
||
336 |
val _ = Context.add_setup (Method.add_methods |
|
337 |
[("intro_classes", Method.no_args (Method.METHOD intro_classes_tac), |
|
338 |
"back-chain introduction rules of classes"), |
|
339 |
("default", Method.thms_ctxt_args (Method.METHOD oo default_tac), |
|
340 |
"apply some intro/elim rule")]); |
|
341 |
||
342 |
||
22069 | 343 |
(* FIXME workarounds for locale package *) |
21954 | 344 |
|
345 |
fun prove_interpretation (prfx, atts) expr insts tac thy = |
|
346 |
let |
|
347 |
fun ad_hoc_term (Const (c, ty)) = |
|
348 |
let |
|
349 |
val p = setmp show_types true (setmp show_sorts true (setmp print_mode [] (Sign.pretty_typ thy))) ty; |
|
350 |
val s = c ^ "::" ^ Pretty.output p; |
|
351 |
in s end |
|
352 |
| ad_hoc_term t = |
|
353 |
let |
|
354 |
val p = setmp show_types true (setmp show_sorts true (setmp print_mode [] (Sign.pretty_term thy))) t; |
|
355 |
val s = Pretty.output p; |
|
356 |
in s end; |
|
357 |
in |
|
358 |
thy |
|
359 |
|> Locale.interpretation I (prfx, atts) expr (map (Option.map ad_hoc_term) insts) |
|
360 |
|> Proof.global_terminal_proof (Method.Basic (fn _ => Method.SIMPLE_METHOD tac), NONE) |
|
361 |
|> ProofContext.theory_of |
|
362 |
end; |
|
363 |
||
22069 | 364 |
fun prove_interpretation_in tac after_qed (name, expr) thy = |
365 |
thy |
|
366 |
|> Locale.interpretation_in_locale (ProofContext.theory after_qed) (name, expr) |
|
367 |
|> Proof.global_terminal_proof (Method.Basic (fn _ => Method.SIMPLE_METHOD tac), NONE) |
|
368 |
|> ProofContext.theory_of; |
|
369 |
||
370 |
fun instance_sort' do_proof (class, sort) theory = |
|
371 |
let |
|
372 |
val loc_name = (#locale o the_class_data theory) class; |
|
373 |
val loc_expr = |
|
374 |
(Locale.Merge o map (Locale.Locale o #locale o the_class_data theory)) sort; |
|
375 |
val const_names = (map (NameSpace.base o snd) |
|
376 |
o maps (#consts o the_class_data theory) |
|
377 |
o the_ancestry theory) [class]; |
|
378 |
fun get_thms thy = |
|
379 |
the_ancestry thy sort |
|
380 |
|> AList.make (the_propnames thy) |
|
381 |
|> map (apsnd (map (NameSpace.append (Logic.const_of_class loc_name)))) |
|
382 |
|> map_filter (fn (superclass, thm_names) => |
|
383 |
case map_filter (try (PureThy.get_thm thy o Name)) thm_names |
|
384 |
of [] => NONE |
|
385 |
| thms => SOME (superclass, thms)); |
|
386 |
fun after_qed thy = |
|
387 |
thy |
|
388 |
|> `get_thms |
|
389 |
|-> fold (fn (supclass, thms) => I |
|
390 |
AxClass.prove_classrel (class, supclass) |
|
391 |
(ALLGOALS (K (intro_classes_tac [])) THEN |
|
392 |
(ALLGOALS o ProofContext.fact_tac) thms)) |
|
393 |
in |
|
394 |
theory |
|
395 |
|> do_proof after_qed (loc_name, loc_expr) |
|
396 |
end; |
|
397 |
||
22074 | 398 |
val prove_instance_sort = instance_sort' o prove_interpretation_in; |
399 |
||
22069 | 400 |
|
401 |
(* classes and instances *) |
|
402 |
||
403 |
local |
|
404 |
||
405 |
fun add_axclass (name, supsort) params axs thy = |
|
406 |
let |
|
407 |
val (c, thy') = thy |
|
408 |
|> AxClass.define_class_i (name, supsort) params axs; |
|
409 |
val {intro, axioms, ...} = AxClass.get_definition thy' c; |
|
410 |
in ((c, (intro, axioms)), thy') end; |
|
411 |
||
412 |
fun certify_class thy class = |
|
413 |
tap (the_class_data thy) (Sign.certify_class thy class); |
|
414 |
||
415 |
fun read_class thy = |
|
416 |
certify_class thy o Sign.intern_class thy; |
|
417 |
||
21954 | 418 |
fun gen_class add_locale prep_class bname raw_supclasses raw_elems thy = |
419 |
let |
|
420 |
val elems = fold_rev (fn Locale.Elem e => cons e | _ => I) raw_elems []; |
|
421 |
val supclasses = map (prep_class thy) raw_supclasses; |
|
422 |
val supsort = |
|
423 |
supclasses |
|
424 |
|> Sign.certify_sort thy |
|
425 |
|> (fn [] => Sign.defaultS thy | S => S); (* FIXME Why syntax defaultS? *) |
|
426 |
val supexpr = Locale.Merge (map (Locale.Locale o #locale o the_class_data thy) supclasses); |
|
427 |
val supconsts = AList.make |
|
428 |
(the o AList.lookup (op =) ((maps (the_parm_map thy) o the_ancestry thy) supclasses)) |
|
429 |
((map (fst o fst) o Locale.parameters_of_expr thy) supexpr); |
|
430 |
fun check_locale thy name_locale = |
|
431 |
let |
|
432 |
val tfrees = |
|
433 |
[] |
|
434 |
|> fold (fold Term.add_tfrees o snd) (Locale.global_asms_of thy name_locale) |
|
435 |
|> fold (Term.add_tfreesT o snd o fst) (Locale.parameters_of thy name_locale); |
|
436 |
in case tfrees |
|
437 |
of [(_, _)] => () |
|
438 |
(*| [(_, sort)] => error ("Additional sort constraint on class variable: " |
|
439 |
^ Sign.string_of_sort thy sort) FIXME what to do about this?*) |
|
440 |
| [] => error ("No type variable in class specification") |
|
441 |
| tfrees => error ("More than one type variable in class specification: " ^ |
|
442 |
(commas o map fst) tfrees) |
|
443 |
end; |
|
444 |
fun extract_params thy name_locale = |
|
445 |
Locale.parameters_of thy name_locale |
|
446 |
|> (map o apfst o apsnd o Term.map_type_tfree) (K (TFree (AxClass.param_tyvarname, []))) |
|
447 |
|> (map o apsnd) (TheoryTarget.fork_mixfix false true #> fst) |
|
448 |
|> chop (length supconsts) |
|
449 |
|> snd; |
|
450 |
fun extract_assumes name_locale params thy cs = |
|
451 |
let |
|
452 |
val consts = supconsts @ (map (fst o fst) params ~~ cs); |
|
453 |
(*FIXME is this type handling correct?*) |
|
454 |
fun subst (Free (c, ty)) = |
|
22048 | 455 |
Const ((fst o the o AList.lookup (op =) consts) c, ty) |
456 |
| subst t = t; |
|
21954 | 457 |
fun prep_asm ((name, atts), ts) = |
458 |
(*FIXME*) |
|
459 |
((NameSpace.base name, map (Attrib.attribute thy) atts), (map o map_aterms) subst ts); |
|
460 |
in |
|
22182 | 461 |
Locale.global_asms_of thy name_locale |
21954 | 462 |
|> map prep_asm |
463 |
end; |
|
22048 | 464 |
fun extract_axiom_names thy name_locale = |
465 |
name_locale |
|
22182 | 466 |
|> Locale.global_asms_of thy |
22048 | 467 |
|> map (NameSpace.base o fst o fst) (*FIXME*) |
21954 | 468 |
fun mk_const thy class (c, ty) = |
469 |
Const (c, Term.map_type_tfree (fn (v, _) => TFree (v, [class])) ty); |
|
470 |
in |
|
471 |
thy |
|
472 |
|> add_locale bname supexpr elems |
|
473 |
|-> (fn name_locale => ProofContext.theory_result ( |
|
474 |
tap (fn thy => check_locale thy name_locale) |
|
475 |
#> `(fn thy => extract_params thy name_locale) |
|
476 |
#-> (fn params => |
|
477 |
axclass_params (bname, supsort) params (extract_assumes name_locale params) |
|
478 |
#-> (fn (name_axclass, ((_, ax_axioms), consts)) => |
|
22048 | 479 |
`(fn thy => extract_axiom_names thy name_locale) |
480 |
#-> (fn axiom_names => |
|
481 |
add_class_data ((name_axclass, supclasses), |
|
482 |
(name_locale, map (fst o fst) params ~~ map fst consts, axiom_names)) |
|
21954 | 483 |
#> prove_interpretation (Logic.const_of_class bname, []) |
22182 | 484 |
(Locale.Locale name_locale) (map (SOME o mk_const thy name_axclass) (map snd supconsts @ consts)) |
21954 | 485 |
((ALLGOALS o ProofContext.fact_tac) ax_axioms) |
486 |
#> pair name_axclass |
|
22048 | 487 |
))))) |
21954 | 488 |
end; |
489 |
||
490 |
in |
|
491 |
||
22182 | 492 |
val class_e = gen_class (Locale.add_locale true) read_class; |
493 |
val class = gen_class (Locale.add_locale_i true) certify_class; |
|
19110
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
494 |
|
20455 | 495 |
end; (*local*) |
19110
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
496 |
|
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
497 |
local |
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
498 |
|
21954 | 499 |
fun gen_instance_sort prep_class prep_sort (raw_class, raw_sort) theory = |
500 |
let |
|
501 |
val class = prep_class theory raw_class; |
|
502 |
val sort = prep_sort theory raw_sort; |
|
503 |
in if is_class theory class andalso forall (is_class theory) sort then |
|
504 |
theory |
|
505 |
|> instance_sort' (Locale.interpretation_in_locale o ProofContext.theory) (class, sort) |
|
506 |
else case sort |
|
507 |
of [class'] => |
|
508 |
theory |
|
509 |
|> axclass_instance_sort (class, class') |
|
510 |
| _ => error ("Exactly one class expected: " ^ Sign.string_of_sort theory sort) |
|
511 |
end; |
|
19110
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
512 |
|
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
513 |
in |
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
514 |
|
21954 | 515 |
val instance_sort_e = gen_instance_sort Sign.read_class Sign.read_sort; |
516 |
val instance_sort = gen_instance_sort Sign.certify_class Sign.certify_sort; |
|
19110
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
517 |
|
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
518 |
end; (* local *) |
19038 | 519 |
|
19957 | 520 |
|
21954 | 521 |
(** experimental class target **) |
522 |
||
523 |
fun export_typ thy loc = |
|
524 |
let |
|
525 |
val class = loc (*FIXME*); |
|
526 |
val (v, _) = AxClass.params_of_class thy class; |
|
527 |
in |
|
528 |
Term.map_type_tfree (fn var as (w, sort) => |
|
529 |
if w = v then TFree (w, Sorts.inter_sort (Sign.classes_of thy) |
|
530 |
(sort, [class])) else TFree var) |
|
531 |
end; |
|
532 |
||
533 |
fun export_def thy loc = |
|
534 |
let |
|
535 |
val class = loc (*FIXME*); |
|
536 |
val consts = the_parm_map thy class; |
|
537 |
val subst_typ = Term.map_type_tfree (fn var as (w, sort) => |
|
538 |
if w = AxClass.param_tyvarname then TFree (w, Sorts.inter_sort (Sign.classes_of thy) |
|
539 |
(sort, [class])) else TFree var) |
|
540 |
fun subst (t as Free (v, _)) = (case AList.lookup (op =) consts v |
|
541 |
of SOME c_ty => Const c_ty |
|
542 |
| NONE => t) |
|
543 |
| subst t = t; |
|
544 |
in |
|
545 |
Term.map_aterms subst #> map_types subst_typ |
|
546 |
end; |
|
547 |
||
548 |
fun export_thm thy loc = |
|
549 |
let |
|
550 |
val class = loc (*FIXME*); |
|
551 |
val thms = (#defs o the_class_data thy) class; |
|
552 |
in |
|
553 |
MetaSimplifier.rewrite_rule thms |
|
554 |
end; |
|
555 |
||
556 |
||
557 |
||
20455 | 558 |
(** toplevel interface **) |
18515 | 559 |
|
560 |
local |
|
561 |
||
562 |
structure P = OuterParse |
|
563 |
and K = OuterKeyword |
|
564 |
||
565 |
in |
|
566 |
||
20385 | 567 |
val (classK, instanceK, print_classesK) = ("class", "instance", "print_classes") |
18515 | 568 |
|
20385 | 569 |
val class_subP = P.name -- Scan.repeat (P.$$$ "+" |-- P.name) >> (op ::); |
22101 | 570 |
val class_bodyP = P.!!! (Scan.repeat1 SpecParse.locale_element); |
20385 | 571 |
|
20601 | 572 |
val parse_arity = |
573 |
(P.xname --| P.$$$ "::" -- P.!!! P.arity) |
|
19136 | 574 |
>> (fn (tyco, (asorts, sort)) => ((tyco, asorts), sort)); |
18911 | 575 |
|
18515 | 576 |
val classP = |
22222 | 577 |
OuterSyntax.command classK "define type class" K.thy_decl ( |
18849
05a16861d3a5
added three times overloaded Isar instance command
haftmann
parents:
18829
diff
changeset
|
578 |
P.name --| P.$$$ "=" |
19280
5091dc43817b
slight improvement in serializer, stub for code generator theorems added
haftmann
parents:
19253
diff
changeset
|
579 |
-- ( |
5091dc43817b
slight improvement in serializer, stub for code generator theorems added
haftmann
parents:
19253
diff
changeset
|
580 |
class_subP --| P.$$$ "+" -- class_bodyP |
5091dc43817b
slight improvement in serializer, stub for code generator theorems added
haftmann
parents:
19253
diff
changeset
|
581 |
|| class_subP >> rpair [] |
20964 | 582 |
|| class_bodyP >> pair []) |
583 |
-- P.opt_begin |
|
584 |
>> (fn ((bname, (supclasses, elems)), begin) => |
|
21805 | 585 |
Toplevel.begin_local_theory begin |
21954 | 586 |
(class_e bname supclasses elems #-> TheoryTarget.begin true))); |
18515 | 587 |
|
18575 | 588 |
val instanceP = |
18849
05a16861d3a5
added three times overloaded Isar instance command
haftmann
parents:
18829
diff
changeset
|
589 |
OuterSyntax.command instanceK "prove type arity or subclass relation" K.thy_goal (( |
21954 | 590 |
P.xname -- ((P.$$$ "\\<subseteq>" || P.$$$ "<") |-- P.!!! P.xname) |
591 |
>> instance_sort_e |
|
22101 | 592 |
|| P.and_list1 parse_arity -- Scan.repeat (SpecParse.opt_thm_name ":" -- P.prop) |
21954 | 593 |
>> (fn (arities, defs) => instance_arity_e arities defs) |
18849
05a16861d3a5
added three times overloaded Isar instance command
haftmann
parents:
18829
diff
changeset
|
594 |
) >> (Toplevel.print oo Toplevel.theory_to_proof)); |
18575 | 595 |
|
20385 | 596 |
val print_classesP = |
597 |
OuterSyntax.improper_command print_classesK "print classes of this theory" K.diag |
|
598 |
(Scan.succeed (Toplevel.no_timing o Toplevel.unknown_theory |
|
599 |
o Toplevel.keep (print_classes o Toplevel.theory_of))); |
|
600 |
||
601 |
val _ = OuterSyntax.add_parsers [classP, instanceP, print_classesP]; |
|
19110
4bda27adcd2e
moved intro_classes from AxClass to ClassPackage
haftmann
parents:
19102
diff
changeset
|
602 |
|
20455 | 603 |
end; (*local*) |
18515 | 604 |
|
20455 | 605 |
end; |