src/Pure/sign.ML
author wenzelm
Wed Mar 03 00:28:22 2010 +0100 (2010-03-03)
changeset 35429 afa8cf9e63d8
parent 35412 b8dead547d9e
child 35669 a91c7ed801b8
permissions -rw-r--r--
authentic syntax for classes and type constructors;
read/intern formal entities just after raw parsing, extern just before final pretty printing;
discontinued _class token translation;
moved Local_Syntax.extern_term to Syntax/printer.ML;
misc tuning;
     1 (*  Title:      Pure/sign.ML
     2     Author:     Lawrence C Paulson and Markus Wenzel
     3 
     4 Logical signature content: naming conventions, concrete syntax, type
     5 signature, polymorphic constants.
     6 *)
     7 
     8 signature SIGN =
     9 sig
    10   val rep_sg: theory ->
    11    {naming: Name_Space.naming,
    12     syn: Syntax.syntax,
    13     tsig: Type.tsig,
    14     consts: Consts.T}
    15   val map_naming: (Name_Space.naming -> Name_Space.naming) -> theory -> theory
    16   val naming_of: theory -> Name_Space.naming
    17   val full_name: theory -> binding -> string
    18   val full_name_path: theory -> string -> binding -> string
    19   val full_bname: theory -> bstring -> string
    20   val full_bname_path: theory -> string -> bstring -> string
    21   val syn_of: theory -> Syntax.syntax
    22   val tsig_of: theory -> Type.tsig
    23   val classes_of: theory -> Sorts.algebra
    24   val all_classes: theory -> class list
    25   val super_classes: theory -> class -> class list
    26   val minimize_sort: theory -> sort -> sort
    27   val complete_sort: theory -> sort -> sort
    28   val defaultS: theory -> sort
    29   val subsort: theory -> sort * sort -> bool
    30   val of_sort: theory -> typ * sort -> bool
    31   val witness_sorts: theory -> (typ * sort) list -> sort list -> (typ * sort) list
    32   val is_logtype: theory -> string -> bool
    33   val typ_instance: theory -> typ * typ -> bool
    34   val typ_equiv: theory -> typ * typ -> bool
    35   val typ_match: theory -> typ * typ -> Type.tyenv -> Type.tyenv
    36   val typ_unify: theory -> typ * typ -> Type.tyenv * int -> Type.tyenv * int
    37   val consts_of: theory -> Consts.T
    38   val the_const_constraint: theory -> string -> typ
    39   val const_type: theory -> string -> typ option
    40   val the_const_type: theory -> string -> typ
    41   val declared_tyname: theory -> string -> bool
    42   val declared_const: theory -> string -> bool
    43   val const_monomorphic: theory -> string -> bool
    44   val const_typargs: theory -> string * typ -> typ list
    45   val const_instance: theory -> string * typ list -> typ
    46   val mk_const: theory -> string * typ list -> term
    47   val class_space: theory -> Name_Space.T
    48   val type_space: theory -> Name_Space.T
    49   val const_space: theory -> Name_Space.T
    50   val intern_class: theory -> xstring -> string
    51   val extern_class: theory -> string -> xstring
    52   val intern_type: theory -> xstring -> string
    53   val extern_type: theory -> string -> xstring
    54   val intern_const: theory -> xstring -> string
    55   val extern_const: theory -> string -> xstring
    56   val intern_sort: theory -> sort -> sort
    57   val extern_sort: theory -> sort -> sort
    58   val intern_typ: theory -> typ -> typ
    59   val intern_term: theory -> term -> term
    60   val the_type_decl: theory -> string -> Type.decl
    61   val arity_number: theory -> string -> int
    62   val arity_sorts: theory -> string -> sort -> sort list
    63   val certify_class: theory -> class -> class
    64   val certify_sort: theory -> sort -> sort
    65   val certify_typ: theory -> typ -> typ
    66   val certify_typ_mode: Type.mode -> theory -> typ -> typ
    67   val certify': bool -> Pretty.pp -> bool -> Consts.T -> theory -> term -> term * typ * int
    68   val certify_term: theory -> term -> term * typ * int
    69   val cert_term: theory -> term -> term
    70   val cert_prop: theory -> term -> term
    71   val no_frees: Pretty.pp -> term -> term
    72   val no_vars: Pretty.pp -> term -> term
    73   val cert_def: Proof.context -> term -> (string * typ) * term
    74   val read_class: theory -> xstring -> class
    75   val read_arity: theory -> xstring * string list * string -> arity
    76   val cert_arity: theory -> arity -> arity
    77   val add_defsort: string -> theory -> theory
    78   val add_defsort_i: sort -> theory -> theory
    79   val add_types: (binding * int * mixfix) list -> theory -> theory
    80   val add_nonterminals: binding list -> theory -> theory
    81   val add_tyabbrs: (binding * string list * string * mixfix) list -> theory -> theory
    82   val add_tyabbrs_i: (binding * string list * typ * mixfix) list -> theory -> theory
    83   val add_syntax: (string * string * mixfix) list -> theory -> theory
    84   val add_syntax_i: (string * typ * mixfix) list -> theory -> theory
    85   val add_modesyntax: Syntax.mode -> (string * string * mixfix) list -> theory -> theory
    86   val add_modesyntax_i: Syntax.mode -> (string * typ * mixfix) list -> theory -> theory
    87   val del_modesyntax: Syntax.mode -> (string * string * mixfix) list -> theory -> theory
    88   val del_modesyntax_i: Syntax.mode -> (string * typ * mixfix) list -> theory -> theory
    89   val type_notation: bool -> Syntax.mode -> (typ * mixfix) list -> theory -> theory
    90   val notation: bool -> Syntax.mode -> (term * mixfix) list -> theory -> theory
    91   val declare_const: (binding * typ) * mixfix -> theory -> term * theory
    92   val add_consts: (binding * string * mixfix) list -> theory -> theory
    93   val add_consts_i: (binding * typ * mixfix) list -> theory -> theory
    94   val add_abbrev: string -> binding * term -> theory -> (term * term) * theory
    95   val revert_abbrev: string -> string -> theory -> theory
    96   val add_const_constraint: string * typ option -> theory -> theory
    97   val primitive_class: binding * class list -> theory -> theory
    98   val primitive_classrel: class * class -> theory -> theory
    99   val primitive_arity: arity -> theory -> theory
   100   val add_trfuns:
   101     (string * (ast list -> ast)) list *
   102     (string * (term list -> term)) list *
   103     (string * (term list -> term)) list *
   104     (string * (ast list -> ast)) list -> theory -> theory
   105   val add_trfunsT:
   106     (string * (bool -> typ -> term list -> term)) list -> theory -> theory
   107   val add_advanced_trfuns:
   108     (string * (Proof.context -> ast list -> ast)) list *
   109     (string * (Proof.context -> term list -> term)) list *
   110     (string * (Proof.context -> term list -> term)) list *
   111     (string * (Proof.context -> ast list -> ast)) list -> theory -> theory
   112   val add_advanced_trfunsT:
   113     (string * (Proof.context -> bool -> typ -> term list -> term)) list -> theory -> theory
   114   val add_tokentrfuns:
   115     (string * string * (Proof.context -> string -> Pretty.T)) list -> theory -> theory
   116   val add_mode_tokentrfuns: string -> (string * (Proof.context -> string -> Pretty.T)) list
   117     -> theory -> theory
   118   val add_trrules: (xstring * string) Syntax.trrule list -> theory -> theory
   119   val del_trrules: (xstring * string) Syntax.trrule list -> theory -> theory
   120   val add_trrules_i: ast Syntax.trrule list -> theory -> theory
   121   val del_trrules_i: ast Syntax.trrule list -> theory -> theory
   122   val new_group: theory -> theory
   123   val reset_group: theory -> theory
   124   val add_path: string -> theory -> theory
   125   val root_path: theory -> theory
   126   val parent_path: theory -> theory
   127   val mandatory_path: string -> theory -> theory
   128   val qualified_path: bool -> binding -> theory -> theory
   129   val local_path: theory -> theory
   130   val restore_naming: theory -> theory -> theory
   131   val hide_class: bool -> string -> theory -> theory
   132   val hide_type: bool -> string -> theory -> theory
   133   val hide_const: bool -> string -> theory -> theory
   134 end
   135 
   136 structure Sign: SIGN =
   137 struct
   138 
   139 (** datatype sign **)
   140 
   141 datatype sign = Sign of
   142  {naming: Name_Space.naming,    (*common naming conventions*)
   143   syn: Syntax.syntax,           (*concrete syntax for terms, types, sorts*)
   144   tsig: Type.tsig,              (*order-sorted signature of types*)
   145   consts: Consts.T};            (*polymorphic constants*)
   146 
   147 fun make_sign (naming, syn, tsig, consts) =
   148   Sign {naming = naming, syn = syn, tsig = tsig, consts = consts};
   149 
   150 structure SignData = Theory_Data_PP
   151 (
   152   type T = sign;
   153   fun extend (Sign {syn, tsig, consts, ...}) =
   154     make_sign (Name_Space.default_naming, syn, tsig, consts);
   155 
   156   val empty =
   157     make_sign (Name_Space.default_naming, Syntax.empty_syntax, Type.empty_tsig, Consts.empty);
   158 
   159   fun merge pp (sign1, sign2) =
   160     let
   161       val Sign {naming = _, syn = syn1, tsig = tsig1, consts = consts1} = sign1;
   162       val Sign {naming = _, syn = syn2, tsig = tsig2, consts = consts2} = sign2;
   163 
   164       val naming = Name_Space.default_naming;
   165       val syn = Syntax.merge_syntaxes syn1 syn2;
   166       val tsig = Type.merge_tsigs pp (tsig1, tsig2);
   167       val consts = Consts.merge (consts1, consts2);
   168     in make_sign (naming, syn, tsig, consts) end;
   169 );
   170 
   171 fun rep_sg thy = SignData.get thy |> (fn Sign args => args);
   172 
   173 fun map_sign f = SignData.map (fn Sign {naming, syn, tsig, consts} =>
   174   make_sign (f (naming, syn, tsig, consts)));
   175 
   176 fun map_naming f = map_sign (fn (naming, syn, tsig, consts) => (f naming, syn, tsig, consts));
   177 fun map_syn f = map_sign (fn (naming, syn, tsig, consts) => (naming, f syn, tsig, consts));
   178 fun map_tsig f = map_sign (fn (naming, syn, tsig, consts) => (naming, syn, f tsig, consts));
   179 fun map_consts f = map_sign (fn (naming, syn, tsig, consts) => (naming, syn, tsig, f consts));
   180 
   181 
   182 (* naming *)
   183 
   184 val naming_of = #naming o rep_sg;
   185 
   186 val full_name = Name_Space.full_name o naming_of;
   187 fun full_name_path thy path = Name_Space.full_name (Name_Space.add_path path (naming_of thy));
   188 
   189 fun full_bname thy = Name_Space.full_name (naming_of thy) o Binding.name;
   190 fun full_bname_path thy path = full_name_path thy path o Binding.name;
   191 
   192 
   193 (* syntax *)
   194 
   195 val syn_of = #syn o rep_sg;
   196 
   197 
   198 (* type signature *)
   199 
   200 val tsig_of = #tsig o rep_sg;
   201 
   202 val classes_of = #2 o #classes o Type.rep_tsig o tsig_of;
   203 val all_classes = Sorts.all_classes o classes_of;
   204 val super_classes = Sorts.super_classes o classes_of;
   205 val minimize_sort = Sorts.minimize_sort o classes_of;
   206 val complete_sort = Sorts.complete_sort o classes_of;
   207 
   208 val defaultS = Type.defaultS o tsig_of;
   209 val subsort = Type.subsort o tsig_of;
   210 val of_sort = Type.of_sort o tsig_of;
   211 val witness_sorts = Type.witness_sorts o tsig_of;
   212 val is_logtype = member (op =) o Type.logical_types o tsig_of;
   213 
   214 val typ_instance = Type.typ_instance o tsig_of;
   215 fun typ_equiv thy (T, U) = typ_instance thy (T, U) andalso typ_instance thy (U, T);
   216 val typ_match = Type.typ_match o tsig_of;
   217 val typ_unify = Type.unify o tsig_of;
   218 
   219 
   220 (* polymorphic constants *)
   221 
   222 val consts_of = #consts o rep_sg;
   223 val the_const_constraint = Consts.the_constraint o consts_of;
   224 val the_const_type = Consts.the_type o consts_of;
   225 val const_type = try o the_const_type;
   226 val const_monomorphic = Consts.is_monomorphic o consts_of;
   227 val const_typargs = Consts.typargs o consts_of;
   228 val const_instance = Consts.instance o consts_of;
   229 
   230 fun mk_const thy (c, Ts) = Const (c, const_instance thy (c, Ts));
   231 
   232 val declared_tyname = Symtab.defined o #2 o #types o Type.rep_tsig o tsig_of;
   233 val declared_const = can o the_const_constraint;
   234 
   235 
   236 
   237 (** intern / extern names **)
   238 
   239 val class_space = #1 o #classes o Type.rep_tsig o tsig_of;
   240 val type_space = #1 o #types o Type.rep_tsig o tsig_of;
   241 val const_space = Consts.space_of o consts_of;
   242 
   243 val intern_class = Name_Space.intern o class_space;
   244 val extern_class = Name_Space.extern o class_space;
   245 val intern_type = Name_Space.intern o type_space;
   246 val extern_type = Name_Space.extern o type_space;
   247 val intern_const = Name_Space.intern o const_space;
   248 val extern_const = Name_Space.extern o const_space;
   249 
   250 val intern_sort = map o intern_class;
   251 val extern_sort = map o extern_class;
   252 
   253 local
   254 
   255 fun map_typ f g (Type (c, Ts)) = Type (g c, map (map_typ f g) Ts)
   256   | map_typ f _ (TFree (x, S)) = TFree (x, map f S)
   257   | map_typ f _ (TVar (xi, S)) = TVar (xi, map f S);
   258 
   259 fun map_term f g h (Const (c, T)) = Const (h c, map_typ f g T)
   260   | map_term f g _ (Free (x, T)) = Free (x, map_typ f g T)
   261   | map_term f g _ (Var (xi, T)) = Var (xi, map_typ f g T)
   262   | map_term _ _ _ (t as Bound _) = t
   263   | map_term f g h (Abs (x, T, t)) = Abs (x, map_typ f g T, map_term f g h t)
   264   | map_term f g h (t $ u) = map_term f g h t $ map_term f g h u;
   265 
   266 in
   267 
   268 fun intern_typ thy = map_typ (intern_class thy) (intern_type thy);
   269 fun intern_term thy = map_term (intern_class thy) (intern_type thy) (intern_const thy);
   270 
   271 end;
   272 
   273 
   274 
   275 (** certify entities **)    (*exception TYPE*)
   276 
   277 (* certify wrt. type signature *)
   278 
   279 val the_type_decl = Type.the_decl o tsig_of;
   280 val arity_number = Type.arity_number o tsig_of;
   281 fun arity_sorts thy = Type.arity_sorts (Syntax.pp_global thy) (tsig_of thy);
   282 
   283 val certify_class         = Type.cert_class o tsig_of;
   284 val certify_sort          = Type.cert_sort o tsig_of;
   285 val certify_typ           = Type.cert_typ o tsig_of;
   286 fun certify_typ_mode mode = Type.cert_typ_mode mode o tsig_of;
   287 
   288 
   289 (* certify term/prop *)
   290 
   291 local
   292 
   293 fun type_check pp tm =
   294   let
   295     fun err_appl why bs t T u U =
   296       let
   297         val xs = map Free bs;           (*we do not rename here*)
   298         val t' = subst_bounds (xs, t);
   299         val u' = subst_bounds (xs, u);
   300         val msg = cat_lines
   301           (TypeInfer.appl_error (Syntax.pp_show_brackets pp) why t' T u' U);
   302       in raise TYPE (msg, [T, U], [t', u']) end;
   303 
   304     fun typ_of (_, Const (_, T)) = T
   305       | typ_of (_, Free  (_, T)) = T
   306       | typ_of (_, Var (_, T)) = T
   307       | typ_of (bs, Bound i) = snd (nth bs i handle Subscript =>
   308           raise TYPE ("Loose bound variable: B." ^ string_of_int i, [], [Bound i]))
   309       | typ_of (bs, Abs (x, T, body)) = T --> typ_of ((x, T) :: bs, body)
   310       | typ_of (bs, t $ u) =
   311           let val T = typ_of (bs, t) and U = typ_of (bs, u) in
   312             (case T of
   313               Type ("fun", [T1, T2]) =>
   314                 if T1 = U then T2 else err_appl "Incompatible operand type" bs t T u U
   315             | _ => err_appl "Operator not of function type" bs t T u U)
   316           end;
   317   in typ_of ([], tm) end;
   318 
   319 fun err msg = raise TYPE (msg, [], []);
   320 
   321 fun check_vars (t $ u) = (check_vars t; check_vars u)
   322   | check_vars (Abs (_, _, t)) = check_vars t
   323   | check_vars (Free (x, _)) =
   324       if Long_Name.is_qualified x then err ("Malformed variable: " ^ quote x) else ()
   325   | check_vars (Var (xi as (_, i), _)) =
   326       if i < 0 then err ("Malformed variable: " ^ quote (Term.string_of_vname xi)) else ()
   327   | check_vars _ = ();
   328 
   329 in
   330 
   331 fun certify' prop pp do_expand consts thy tm =
   332   let
   333     val _ = check_vars tm;
   334     val tm' = Term.map_types (certify_typ thy) tm;
   335     val T = type_check pp tm';
   336     val _ = if prop andalso T <> propT then err "Term not of type prop" else ();
   337     val tm'' = Consts.certify pp (tsig_of thy) do_expand consts tm';
   338   in (if tm = tm'' then tm else tm'', T, Term.maxidx_of_term tm'') end;
   339 
   340 fun certify_term thy = certify' false (Syntax.pp_global thy) true (consts_of thy) thy;
   341 fun cert_term_abbrev thy = #1 o certify' false (Syntax.pp_global thy) false (consts_of thy) thy;
   342 val cert_term = #1 oo certify_term;
   343 fun cert_prop thy = #1 o certify' true (Syntax.pp_global thy) true (consts_of thy) thy;
   344 
   345 end;
   346 
   347 
   348 (* specifications *)
   349 
   350 fun no_variables kind add addT mk mkT pp tm =
   351   (case (add tm [], addT tm []) of
   352     ([], []) => tm
   353   | (frees, tfrees) => error (Pretty.string_of (Pretty.block
   354       (Pretty.str ("Illegal " ^ kind ^ " variable(s) in term:") :: Pretty.brk 1 ::
   355        Pretty.commas (map (Pretty.term pp o mk) frees @ map (Pretty.typ pp o mkT) tfrees)))));
   356 
   357 val no_frees = no_variables "free" Term.add_frees Term.add_tfrees Free TFree;
   358 val no_vars = no_variables "schematic" Term.add_vars Term.add_tvars Var TVar;
   359 
   360 fun cert_def ctxt tm =
   361   let val ((lhs, rhs), _) = tm
   362     |> no_vars (Syntax.pp ctxt)
   363     |> Logic.strip_imp_concl
   364     |> Primitive_Defs.dest_def ctxt Term.is_Const (K false) (K false)
   365   in (Term.dest_Const (Term.head_of lhs), rhs) end
   366   handle TERM (msg, _) => error msg;
   367 
   368 
   369 
   370 (** read and certify entities **)    (*exception ERROR*)
   371 
   372 (* classes *)
   373 
   374 fun read_class thy text =
   375   let
   376     val (syms, pos) = Syntax.read_token text;
   377     val c = certify_class thy (intern_class thy (Symbol_Pos.content syms))
   378       handle TYPE (msg, _, _) => error (msg ^ Position.str_of pos);
   379     val _ = Position.report (Markup.tclass c) pos;
   380   in c end;
   381 
   382 
   383 (* type arities *)
   384 
   385 fun prep_arity prep_tycon prep_sort thy (t, Ss, S) =
   386   let val arity = (prep_tycon thy t, map (prep_sort thy) Ss, prep_sort thy S)
   387   in Type.add_arity (Syntax.pp_global thy) arity (tsig_of thy); arity end;
   388 
   389 val read_arity = prep_arity intern_type Syntax.read_sort_global;
   390 val cert_arity = prep_arity (K I) certify_sort;
   391 
   392 
   393 (* type syntax entities *)
   394 
   395 local
   396 
   397 fun read_type thy text =
   398   let
   399     val (syms, pos) = Syntax.read_token text;
   400     val c = intern_type thy (Symbol_Pos.content syms);
   401     val _ = the_type_decl thy c;
   402     val _ = Position.report (Markup.tycon c) pos;
   403   in c end;
   404 
   405 in
   406 
   407 val _ = Context.>>
   408   (Context.map_theory
   409     (map_syn (K (Syntax.basic_syntax {read_class = read_class, read_type = read_type}))));
   410 
   411 end;
   412 
   413 
   414 
   415 (** signature extension functions **)  (*exception ERROR/TYPE*)
   416 
   417 (* add default sort *)
   418 
   419 fun gen_add_defsort prep_sort s thy =
   420   thy |> map_tsig (Type.set_defsort (prep_sort thy s));
   421 
   422 val add_defsort = gen_add_defsort Syntax.read_sort_global;
   423 val add_defsort_i = gen_add_defsort certify_sort;
   424 
   425 
   426 (* add type constructors *)
   427 
   428 val type_syntax = Syntax.mark_type oo full_name;
   429 
   430 fun add_types types thy = thy |> map_sign (fn (naming, syn, tsig, consts) =>
   431   let
   432     val syn' =
   433       Syntax.update_type_gram true Syntax.mode_default
   434         (map (fn (a, n, mx) => (type_syntax thy a, Syntax.make_type n, mx)) types) syn;
   435     val decls = map (fn (a, n, _) => (a, n)) types;
   436     val tsig' = fold (Type.add_type naming) decls tsig;
   437   in (naming, syn', tsig', consts) end);
   438 
   439 
   440 (* add nonterminals *)
   441 
   442 fun add_nonterminals ns thy = thy |> map_sign (fn (naming, syn, tsig, consts) =>
   443   let
   444     val tsig' = fold (Type.add_nonterminal naming) ns tsig;
   445   in (naming, syn, tsig', consts) end);
   446 
   447 
   448 (* add type abbreviations *)
   449 
   450 fun gen_add_tyabbr parse_typ (b, vs, rhs, mx) thy =
   451   thy |> map_sign (fn (naming, syn, tsig, consts) =>
   452     let
   453       val ctxt = ProofContext.init thy;
   454       val syn' =
   455         Syntax.update_type_gram true Syntax.mode_default
   456           [(type_syntax thy b, Syntax.make_type (length vs), mx)] syn;
   457       val abbr = (b, vs, certify_typ_mode Type.mode_syntax thy (parse_typ ctxt rhs))
   458         handle ERROR msg => cat_error msg ("in type abbreviation " ^ quote (Binding.str_of b));
   459       val tsig' = Type.add_abbrev naming abbr tsig;
   460     in (naming, syn', tsig', consts) end);
   461 
   462 val add_tyabbrs = fold (gen_add_tyabbr Syntax.parse_typ);
   463 val add_tyabbrs_i = fold (gen_add_tyabbr (K I));
   464 
   465 
   466 (* modify syntax *)
   467 
   468 fun gen_syntax change_gram parse_typ mode args thy =
   469   let
   470     val ctxt = ProofContext.init thy;
   471     fun prep (c, T, mx) = (c, certify_typ_mode Type.mode_syntax thy (parse_typ ctxt T), mx)
   472       handle ERROR msg => cat_error msg ("in syntax declaration " ^ quote c);
   473   in thy |> map_syn (change_gram (is_logtype thy) mode (map prep args)) end;
   474 
   475 fun gen_add_syntax x = gen_syntax (Syntax.update_const_gram true) x;
   476 
   477 val add_modesyntax = gen_add_syntax Syntax.parse_typ;
   478 val add_modesyntax_i = gen_add_syntax (K I);
   479 val add_syntax = add_modesyntax Syntax.mode_default;
   480 val add_syntax_i = add_modesyntax_i Syntax.mode_default;
   481 val del_modesyntax = gen_syntax (Syntax.update_const_gram false) Syntax.parse_typ;
   482 val del_modesyntax_i = gen_syntax (Syntax.update_const_gram false) (K I);
   483 
   484 fun type_notation add mode args =
   485   let
   486     fun type_syntax (Type (c, args), mx) =
   487           SOME (Syntax.mark_type c, Syntax.make_type (length args), mx)
   488       | type_syntax _ = NONE;
   489   in map_syn (Syntax.update_type_gram add mode (map_filter type_syntax args)) end;
   490 
   491 fun notation add mode args thy =
   492   let
   493     fun const_syntax (Const (c, _), mx) =
   494           (case try (Consts.type_scheme (consts_of thy)) c of
   495             SOME T => SOME (Syntax.mark_const c, T, mx)
   496           | NONE => NONE)
   497       | const_syntax _ = NONE;
   498   in gen_syntax (Syntax.update_const_gram add) (K I) mode (map_filter const_syntax args) thy end;
   499 
   500 
   501 (* add constants *)
   502 
   503 local
   504 
   505 fun gen_add_consts parse_typ raw_args thy =
   506   let
   507     val ctxt = ProofContext.init thy;
   508     val prepT = Type.no_tvars o Term.no_dummyT o certify_typ thy o parse_typ ctxt;
   509     fun prep (b, raw_T, mx) =
   510       let
   511         val c = full_name thy b;
   512         val T = (prepT raw_T handle TYPE (msg, _, _) => error msg) handle ERROR msg =>
   513           cat_error msg ("in declaration of constant " ^ quote (Binding.str_of b));
   514         val T' = Logic.varifyT T;
   515       in ((b, T'), (Syntax.mark_const c, T', mx), Const (c, T)) end;
   516     val args = map prep raw_args;
   517   in
   518     thy
   519     |> map_consts (fold (Consts.declare (naming_of thy) o #1) args)
   520     |> add_syntax_i (map #2 args)
   521     |> pair (map #3 args)
   522   end;
   523 
   524 in
   525 
   526 fun add_consts args = snd o gen_add_consts Syntax.parse_typ args;
   527 fun add_consts_i args = snd o gen_add_consts (K I) args;
   528 
   529 fun declare_const ((b, T), mx) thy =
   530   let
   531     val pos = Binding.pos_of b;
   532     val ([const as Const (c, _)], thy') = gen_add_consts (K I) [(b, T, mx)] thy;
   533     val _ = Position.report (Markup.const_decl c) pos;
   534   in (const, thy') end;
   535 
   536 end;
   537 
   538 
   539 (* abbreviations *)
   540 
   541 fun add_abbrev mode (b, raw_t) thy =
   542   let
   543     val pp = Syntax.pp_global thy;
   544     val prep_tm = no_frees pp o Term.no_dummy_patterns o cert_term_abbrev thy;
   545     val t = (prep_tm raw_t handle TYPE (msg, _, _) => error msg | TERM (msg, _) => error msg)
   546       handle ERROR msg => cat_error msg ("in constant abbreviation " ^ quote (Binding.str_of b));
   547     val (res, consts') = consts_of thy
   548       |> Consts.abbreviate pp (tsig_of thy) (naming_of thy) mode (b, t);
   549   in (res, thy |> map_consts (K consts')) end;
   550 
   551 fun revert_abbrev mode c = map_consts (Consts.revert_abbrev mode c);
   552 
   553 
   554 (* add constraints *)
   555 
   556 fun add_const_constraint (c, opt_T) thy =
   557   let
   558     fun prepT raw_T =
   559       let val T = Logic.varifyT (Type.no_tvars (Term.no_dummyT (certify_typ thy raw_T)))
   560       in cert_term thy (Const (c, T)); T end
   561       handle TYPE (msg, _, _) => error msg;
   562   in thy |> map_consts (Consts.constrain (c, Option.map prepT opt_T)) end;
   563 
   564 
   565 (* primitive classes and arities *)
   566 
   567 fun primitive_class (bclass, classes) thy =
   568   thy |> map_sign (fn (naming, syn, tsig, consts) =>
   569     let
   570       val tsig' = Type.add_class (Syntax.pp_global thy) naming (bclass, classes) tsig;
   571     in (naming, syn, tsig', consts) end)
   572   |> add_consts_i [(Binding.map_name Logic.const_of_class bclass, Term.a_itselfT --> propT, NoSyn)];
   573 
   574 fun primitive_classrel arg thy = thy |> map_tsig (Type.add_classrel (Syntax.pp_global thy) arg);
   575 fun primitive_arity arg thy = thy |> map_tsig (Type.add_arity (Syntax.pp_global thy) arg);
   576 
   577 
   578 (* add translation functions *)
   579 
   580 local
   581 
   582 fun mk trs = map Syntax.mk_trfun trs;
   583 
   584 fun gen_add_trfuns ext non_typed (atrs, trs, tr's, atr's) =
   585   map_syn (ext (mk atrs, mk trs, mk (map (apsnd non_typed) tr's), mk atr's));
   586 
   587 fun gen_add_trfunsT ext tr's = map_syn (ext ([], [], mk tr's, []));
   588 
   589 in
   590 
   591 val add_trfuns = gen_add_trfuns Syntax.update_trfuns Syntax.non_typed_tr';
   592 val add_trfunsT = gen_add_trfunsT Syntax.update_trfuns;
   593 val add_advanced_trfuns = gen_add_trfuns Syntax.update_advanced_trfuns Syntax.non_typed_tr'';
   594 val add_advanced_trfunsT = gen_add_trfunsT Syntax.update_advanced_trfuns;
   595 
   596 end;
   597 
   598 val add_tokentrfuns = map_syn o Syntax.extend_tokentrfuns;
   599 fun add_mode_tokentrfuns m = add_tokentrfuns o map (fn (s, f) => (m, s, f));
   600 
   601 
   602 (* translation rules *)
   603 
   604 fun gen_trrules f args thy = thy |> map_syn (fn syn =>
   605   let val rules = map (Syntax.map_trrule (apfst (intern_type thy))) args
   606   in f (ProofContext.init thy) (is_logtype thy) syn rules syn end);
   607 
   608 val add_trrules = gen_trrules Syntax.update_trrules;
   609 val del_trrules = gen_trrules Syntax.remove_trrules;
   610 val add_trrules_i = map_syn o Syntax.update_trrules_i;
   611 val del_trrules_i = map_syn o Syntax.remove_trrules_i;
   612 
   613 
   614 (* naming *)
   615 
   616 val new_group = map_naming Name_Space.new_group;
   617 val reset_group = map_naming Name_Space.reset_group;
   618 
   619 val add_path = map_naming o Name_Space.add_path;
   620 val root_path = map_naming Name_Space.root_path;
   621 val parent_path = map_naming Name_Space.parent_path;
   622 val mandatory_path = map_naming o Name_Space.mandatory_path;
   623 val qualified_path = map_naming oo Name_Space.qualified_path;
   624 
   625 fun local_path thy = thy |> root_path |> add_path (Context.theory_name thy);
   626 
   627 val restore_naming = map_naming o K o naming_of;
   628 
   629 
   630 (* hide names *)
   631 
   632 val hide_class = map_tsig oo Type.hide_class;
   633 val hide_type = map_tsig oo Type.hide_type;
   634 val hide_const = map_consts oo Consts.hide;
   635 
   636 end;