src/Pure/sign.ML
author wenzelm
Mon, 06 Oct 1997 19:11:56 +0200
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(*  Title:      Pure/sign.ML
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    ID:         $Id$
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    Author:     Lawrence C Paulson and Markus Wenzel
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The abstract type "sg" of signatures.
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*)
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signature SIGN =
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sig
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  type sg
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  val rep_sg: sg ->
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   {tsig: Type.type_sig,
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    const_tab: typ Symtab.table,
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    syn: Syntax.syntax,
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    path: string list,
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    spaces: (string * NameSpace.T) list,
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    stamps: string ref list}
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  val subsig: sg * sg -> bool
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  val eq_sg: sg * sg -> bool
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  val same_sg: sg * sg -> bool
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  val is_draft: sg -> bool
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  val const_type: sg -> string -> typ option
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  val classes: sg -> class list
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  val subsort: sg -> sort * sort -> bool
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  val nodup_Vars: term -> unit
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  val norm_sort: sg -> sort -> sort
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  val nonempty_sort: sg -> sort list -> sort -> bool
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  val long_names: bool ref
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  val intern_class: sg -> class -> class
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  val extern_class: sg -> class -> class
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  val intern_sort: sg -> sort -> sort
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  val extern_sort: sg -> sort -> sort
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  val intern_typ: sg -> typ -> typ
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  val extern_typ: sg -> typ -> typ
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  val intern_term: sg -> term -> term
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  val extern_term: sg -> term -> term
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  val intern_tycons: sg -> typ -> typ
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  val intern_tycon: sg -> string -> string
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  val intern_const: sg -> string -> string
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  val print_sg: sg -> unit
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  val pretty_sg: sg -> Pretty.T
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  val pprint_sg: sg -> pprint_args -> unit
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  val pretty_term: sg -> term -> Pretty.T
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  val pretty_typ: sg -> typ -> Pretty.T
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  val pretty_sort: sg -> sort -> Pretty.T
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  val string_of_term: sg -> term -> string
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  val string_of_typ: sg -> typ -> string
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  val string_of_sort: sg -> sort -> string
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  val pprint_term: sg -> term -> pprint_args -> unit
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  val pprint_typ: sg -> typ -> pprint_args -> unit
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  val certify_typ: sg -> typ -> typ
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  val certify_term: sg -> term -> term * typ * int
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  val read_typ: sg * (indexname -> sort option) -> string -> typ
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  val infer_types: sg -> (indexname -> typ option) ->
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    (indexname -> sort option) -> string list -> bool
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    -> term list * typ -> int * term * (indexname * typ) list
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  val add_classes: (class * class list) list -> sg -> sg
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  val add_classes_i: (class * class list) list -> sg -> sg
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  val add_classrel: (class * class) list -> sg -> sg
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  val add_classrel_i: (class * class) list -> sg -> sg
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  val add_defsort: sort -> sg -> sg
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  val add_defsort_i: sort -> sg -> sg
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  val add_types: (string * int * mixfix) list -> sg -> sg
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  val add_tyabbrs: (string * string list * string * mixfix) list -> sg -> sg
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  val add_tyabbrs_i: (string * string list * typ * mixfix) list -> sg -> sg
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  val add_arities: (string * sort list * sort) list -> sg -> sg
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  val add_arities_i: (string * sort list * sort) list -> sg -> sg
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  val add_consts: (string * string * mixfix) list -> sg -> sg
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  val add_consts_i: (string * typ * mixfix) list -> sg -> sg
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  val add_syntax: (string * string * mixfix) list -> sg -> sg
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  val add_syntax_i: (string * typ * mixfix) list -> sg -> sg
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  val add_modesyntax: (string * bool) * (string * string * mixfix) list -> sg -> sg
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  val add_modesyntax_i: (string * bool) * (string * typ * mixfix) list -> sg -> sg
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  val add_trfuns:
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    (string * (ast list -> ast)) list *
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    (string * (term list -> term)) list *
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    (string * (term list -> term)) list *
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    (string * (ast list -> ast)) list -> sg -> sg
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  val add_trfunsT:
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    (string * (typ -> term list -> term)) list -> sg -> sg
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  val add_tokentrfuns:
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    (string * string * (string -> string * int)) list -> sg -> sg
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  val add_trrules: (string * string) Syntax.trrule list -> sg -> sg
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  val add_trrules_i: ast Syntax.trrule list -> sg -> sg
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  val add_path: string -> sg -> sg
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  val add_space: string * string list -> sg -> sg
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  val add_name: string -> sg -> sg
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  val make_draft: sg -> sg
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  val merge: sg * sg -> sg
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  val proto_pure: sg
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  val pure: sg
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  val cpure: sg
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  val const_of_class: class -> string
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  val class_of_const: string -> class
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end;
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structure Sign : SIGN =
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struct
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(** datatype sg **)
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datatype sg =
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  Sg of {
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    tsig: Type.type_sig,                        (*order-sorted signature of types*)
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    const_tab: typ Symtab.table,                (*types of constants*)
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    syn: Syntax.syntax,                         (*syntax for parsing and printing*)
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    path: string list,                     	(*current position in name space*)
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    spaces: (string * NameSpace.T) list,   	(*name spaces for consts, types etc.*)
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    stamps: string ref list};                   (*unique theory indentifier*)
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    (*the "ref" in stamps ensures that no two signatures are identical
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      -- it is impossible to forge a signature*)
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fun rep_sg (Sg args) = args;
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val tsig_of = #tsig o rep_sg;
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(* inclusion and equality *)
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local
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  (*avoiding polymorphic equality: factor 10 speedup*)
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  fun mem_stamp (_:string ref, []) = false
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    | mem_stamp (x, y :: ys) = x = y orelse mem_stamp (x, ys);
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  fun subset_stamp ([], ys) = true
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    | subset_stamp (x :: xs, ys) =
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        mem_stamp (x, ys) andalso subset_stamp (xs, ys);
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  (*fast partial test*)
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  fun fast_sub ([]: string ref list, _) = true
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    | fast_sub (_, []) = false
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    | fast_sub (x :: xs, y :: ys) =
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        if x = y then fast_sub (xs, ys)
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        else fast_sub (x :: xs, ys);
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in
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  fun subsig (Sg {stamps = s1, ...}, Sg {stamps = s2, ...}) =
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    s1 = s2 orelse subset_stamp (s1, s2);
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  fun fast_subsig (Sg {stamps = s1, ...}, Sg {stamps = s2, ...}) =
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    s1 = s2 orelse fast_sub (s1, s2);
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  fun eq_sg (Sg {stamps = s1, ...}, Sg {stamps = s2, ...}) =
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    s1 = s2 orelse (subset_stamp (s1, s2) andalso subset_stamp (s2, s1));
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end;
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(*test if same theory names are contained in signatures' stamps,
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  i.e. if signatures belong to same theory but not necessarily to the
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  same version of it*)
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fun same_sg (Sg {stamps = s1, ...}, Sg {stamps = s2, ...}) =
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  eq_set_string (pairself (map (op !)) (s1, s2));
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(*test for drafts*)
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fun is_draft (Sg {stamps = ref "#" :: _, ...}) = true
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  | is_draft _ = false;
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(* consts *)
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fun const_type (Sg {const_tab, ...}) c = Symtab.lookup (const_tab, c);
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(* classes and sorts *)
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val classes = #classes o Type.rep_tsig o tsig_of;
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val subsort = Type.subsort o tsig_of;
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val norm_sort = Type.norm_sort o tsig_of;
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val nonempty_sort = Type.nonempty_sort o tsig_of;
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3791
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(** name spaces **)
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(*prune names by default*)
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val long_names = ref false;
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(* kinds *)
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val classK = "class";
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val typeK = "type";
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val constK = "const";
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(* add and retrieve names *)
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fun space_of spaces kind =
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  if_none (assoc (spaces, kind)) NameSpace.empty;
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(*input and output of qualified names*)
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fun intrn spaces kind = NameSpace.lookup (space_of spaces kind);
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fun extrn spaces kind = NameSpace.prune (space_of spaces kind);
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(*add names*)
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fun add_names spaces kind names =
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  let val space' = NameSpace.extend (names, space_of spaces kind) in
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    overwrite (spaces, (kind, space'))
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  end;
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fun full_name path name = NameSpace.pack (path @ (NameSpace.unpack name));
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(* intern / extern names *)
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(*Note: These functions are not necessarily idempotent!*)	(* FIXME *)
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local
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  (* FIXME move to term.ML? *)
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  fun add_typ_classes (Type (_, Ts), cs) = foldr add_typ_classes (Ts, cs)
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    | add_typ_classes (TFree (_, S), cs) = S union cs
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    | add_typ_classes (TVar (_, S), cs) = S union cs;
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  fun add_typ_tycons (Type (c, Ts), cs) = foldr add_typ_tycons (Ts, c ins cs)
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    | add_typ_tycons (_, cs) = cs;
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  val add_term_classes = it_term_types add_typ_classes;
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  val add_term_tycons = it_term_types add_typ_tycons;
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  fun add_term_consts (Const (c, _), cs) = c ins cs
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    | add_term_consts (t $ u, cs) = add_term_consts (t, add_term_consts (u, cs))
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    | add_term_consts (Abs (_, _, t), cs) = add_term_consts (t, cs)
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    | add_term_consts (_, cs) = cs;
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  (*map classes, tycons*)
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  fun map_typ f g (Type (c, Ts)) = Type (g c, map (map_typ f g) Ts)
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    | map_typ f _ (TFree (x, S)) = TFree (x, map f S)
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    | map_typ f _ (TVar (xi, S)) = TVar (xi, map f S);
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  (*map classes, tycons, consts*)
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  fun map_term f g h (Const (c, T)) = Const (h c, map_typ f g T)
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    | map_term f g _ (Free (x, T)) = Free (x, map_typ f g T)
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    | map_term f g _ (Var (xi, T)) = Var (xi, map_typ f g T)
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    | map_term _ _ _ (t as Bound _) = t
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    | map_term f g h (Abs (x, T, t)) = Abs (x, map_typ f g T, map_term f g h t)
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    | map_term f g h (t $ u) = map_term f g h t $ map_term f g h u;
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  (*prepare mapping of names*)
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  fun mapping f add_xs t =
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    let
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      fun f' x = let val y = f x in if x = y then None else Some (x, y) end;
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      val table = mapfilter f' (add_xs (t, []));
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      fun lookup x = if_none (assoc (table, x)) x;
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    in lookup end;
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  (*intern / extern typ*)
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  fun trn_typ trn T =
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    T |> map_typ
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      (mapping (trn classK) add_typ_classes T)
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      (mapping (trn typeK) add_typ_tycons T);
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  (*intern / extern term*)
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  fun trn_term trn t =
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    t |> map_term
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      (mapping (trn classK) add_term_classes t)
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      (mapping (trn typeK) add_term_tycons t)
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      (mapping (trn constK) add_term_consts t);
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  fun spaces_of (Sg {spaces, ...}) = spaces;
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in
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  fun intrn_class spaces = intrn spaces classK;
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  fun extrn_class spaces = extrn spaces classK;
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  val intrn_sort = map o intrn_class;
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  val extrn_sort = map o extrn_class;
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  val intrn_typ = trn_typ o intrn;
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  val extrn_typ = trn_typ o extrn;
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  val intrn_term = trn_term o intrn;
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  val extrn_term = trn_term o extrn;
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  val intern_class = intrn_class o spaces_of;
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  val extern_class = extrn_class o spaces_of;
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  val intern_sort = intrn_sort o spaces_of;
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  val extern_sort = extrn_sort o spaces_of;
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  val intern_typ = intrn_typ o spaces_of;
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  val extern_typ = extrn_typ o spaces_of;
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  val intern_term = intrn_term o spaces_of;
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  val extern_term = extrn_term o spaces_of;
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  fun intrn_tycons spaces T =
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    map_typ I (mapping (intrn spaces typeK) add_typ_tycons T) T;
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  fun intern_tycon sg = intrn (spaces_of sg) typeK;
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  fun intern_const sg = intrn (spaces_of sg) constK;
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  val intern_tycons = intrn_tycons o spaces_of;
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end;
620
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0
a5a9c433f639 Initial revision
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(** print signature **)
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fun stamp_names stamps = rev (map ! stamps);
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fun print_sg sg =
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   301
  let
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    val Sg {syn, ...} = sg;
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    fun prt_typ ty = Pretty.quote (Syntax.pretty_typ syn ty);
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   305
    fun prt_cls c = Syntax.pretty_sort syn [c];
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   306
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    fun pretty_space (kind, space) = Pretty.block (Pretty.breaks
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   308
      (map Pretty.str (kind ^ ":" :: map quote (NameSpace.dest space))));
251
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   309
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    fun pretty_classes cs = Pretty.block
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   311
      (Pretty.breaks (Pretty.str "classes:" :: map prt_cls cs));
251
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   312
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    fun pretty_classrel (c, cs) = Pretty.block
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      (prt_cls c :: Pretty.str " <" :: Pretty.brk 1 ::
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   315
        Pretty.commas (map prt_cls cs));
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    fun pretty_default S = Pretty.block
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   318
      [Pretty.str "default:", Pretty.brk 1, Syntax.pretty_sort syn S];
251
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   319
963
7a78fda77104 Corrected a silly old bug in merge_tsigs.
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    fun pretty_ty (ty, n) = Pretty.str (ty ^ " " ^ string_of_int n);
251
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   321
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   322
    fun pretty_abbr (ty, (vs, rhs)) = Pretty.block
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   323
      [prt_typ (Type (ty, map (fn v => TVar ((v, 0), [])) vs)),
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   324
        Pretty.str " =", Pretty.brk 1, prt_typ rhs];
251
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diff changeset
   325
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   326
    fun pretty_arity ty (c, []) = Pretty.block
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          [Pretty.str (ty ^ " ::"), Pretty.brk 1, prt_cls c]
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      | pretty_arity ty (c, Ss) = Pretty.block
251
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diff changeset
   329
          [Pretty.str (ty ^ " ::"), Pretty.brk 1,
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parents: 3552
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            Pretty.list "(" ")" (map (Syntax.pretty_sort syn) Ss),
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parents: 3552
diff changeset
   331
            Pretty.brk 1, prt_cls c];
251
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parents: 229
diff changeset
   332
963
7a78fda77104 Corrected a silly old bug in merge_tsigs.
nipkow
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diff changeset
   333
    fun pretty_arities (ty, ars) = map (pretty_arity ty) ars;
251
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parents: 229
diff changeset
   334
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   335
    fun pretty_const (c, ty) = Pretty.block
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   336
      [Pretty.str (quote c ^ " ::"), Pretty.brk 1, prt_typ ty];
251
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parents: 229
diff changeset
   337
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diff changeset
   338
    val Sg {tsig, const_tab, syn, path, spaces, stamps} = sg;
2963
f3b5af1c5a67 renamed subclass to classrel;
wenzelm
parents: 2693
diff changeset
   339
    val {classes, classrel, default, tycons, abbrs, arities} =
2185
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   340
      Type.rep_tsig tsig;
251
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wenzelm
parents: 229
diff changeset
   341
  in
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   342
    Pretty.writeln (Pretty.strs ("stamps:" :: stamp_names stamps));
3791
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wenzelm
parents: 3552
diff changeset
   343
    Pretty.writeln (Pretty.strs ["name entry path:", NameSpace.pack path]);
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parents: 3552
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   344
    Pretty.writeln (Pretty.big_list "name spaces:" (map pretty_space spaces));
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wenzelm
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   345
    Pretty.writeln (pretty_classes classes);
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diff changeset
   346
    Pretty.writeln (Pretty.big_list "class relation:" (map pretty_classrel classrel));
251
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diff changeset
   347
    Pretty.writeln (pretty_default default);
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   348
    Pretty.writeln (Pretty.big_list "type constructors:" (map pretty_ty tycons));
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parents: 3552
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   349
    Pretty.writeln (Pretty.big_list "type abbreviations:" (map pretty_abbr abbrs));
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parents: 3552
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   350
    Pretty.writeln (Pretty.big_list "type arities:" (flat (map pretty_arities arities)));
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parents: 3552
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   351
    Pretty.writeln (Pretty.big_list "consts:" (map pretty_const (Symtab.dest const_tab)))
251
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   352
  end;
c9b984c0a674 major cleanup;
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parents: 229
diff changeset
   353
c9b984c0a674 major cleanup;
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parents: 229
diff changeset
   354
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   355
fun pretty_sg (Sg {stamps, ...}) =
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wenzelm
parents: 421
diff changeset
   356
  Pretty.str_list "{" "}" (stamp_names stamps);
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   357
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   358
val pprint_sg = Pretty.pprint o pretty_sg;
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   359
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   360
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   361
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   362
(** pretty printing of terms and types **)
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parents: 229
diff changeset
   363
3791
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parents: 3552
diff changeset
   364
fun pretty_term (Sg {syn, spaces, stamps, ...}) t =
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wenzelm
parents: 3552
diff changeset
   365
  Syntax.pretty_term syn
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wenzelm
parents: 3552
diff changeset
   366
    ("CPure" mem_string (map ! stamps))
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   367
    (if ! long_names then t else extrn_term spaces t);
922
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   368
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parents: 3552
diff changeset
   369
fun pretty_typ (Sg {syn, spaces, ...}) T =
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wenzelm
parents: 3552
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   370
  Syntax.pretty_typ syn
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parents: 3552
diff changeset
   371
    (if ! long_names then T else extrn_typ spaces T);
251
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wenzelm
parents: 229
diff changeset
   372
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parents: 3552
diff changeset
   373
fun pretty_sort (Sg {syn, spaces, ...}) S =
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wenzelm
parents: 3552
diff changeset
   374
  Syntax.pretty_sort syn
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parents: 3552
diff changeset
   375
    (if ! long_names then S else extrn_sort spaces S);
922
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   376
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parents: 3552
diff changeset
   377
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
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   378
fun string_of_term sg t = Pretty.string_of (pretty_term sg t);
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parents: 3552
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   379
fun string_of_typ sg T = Pretty.string_of (pretty_typ sg T);
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parents: 3552
diff changeset
   380
fun string_of_sort sg S = Pretty.string_of (pretty_sort sg S);
251
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parents: 229
diff changeset
   381
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   382
fun pprint_term sg = Pretty.pprint o Pretty.quote o (pretty_term sg);
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parents: 229
diff changeset
   383
fun pprint_typ sg = Pretty.pprint o Pretty.quote o (pretty_typ sg);
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   384
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   385
169
1b2765146aab extend: cleaned up, adapted for new Syntax.extend;
wenzelm
parents: 155
diff changeset
   386
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   387
(** read types **)  (*exception ERROR*)
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   388
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   389
fun err_in_type s =
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wenzelm
parents: 421
diff changeset
   390
  error ("The error(s) above occurred in type " ^ quote s);
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wenzelm
parents: 421
diff changeset
   391
3791
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wenzelm
parents: 3552
diff changeset
   392
fun read_raw_typ syn tsig spaces def_sort str =
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wenzelm
parents: 3552
diff changeset
   393
  intrn_tycons spaces
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wenzelm
parents: 3552
diff changeset
   394
    (Syntax.read_typ syn (Type.get_sort tsig def_sort (intrn_sort spaces)) str
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   395
      handle ERROR => err_in_type str);
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   396
  
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   397
(*read and certify typ wrt a signature*)
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   398
fun read_typ (Sg {tsig, syn, spaces, ...}, def_sort) str =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   399
  Type.cert_typ tsig (read_raw_typ syn tsig spaces def_sort str)
3552
f348e8a2db4b tuned error / warning;
wenzelm
parents: 2979
diff changeset
   400
    handle TYPE (msg, _, _) => (error_msg msg; err_in_type str);
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   401
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   402
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   403
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   404
(** certify types and terms **)   (*exception TYPE*)
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   405
2185
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   406
fun certify_typ (Sg {tsig, ...}) ty = Type.cert_typ tsig ty;
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   407
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   408
(*check for duplicate TVars with distinct sorts*)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   409
fun nodup_TVars (tvars, T) =
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   410
  (case T of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   411
    Type (_, Ts) => nodup_TVars_list (tvars, Ts)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   412
  | TFree _ => tvars
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   413
  | TVar (v as (a, S)) =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   414
      (case assoc_string_int (tvars, a) of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   415
        Some S' =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   416
          if S = S' then tvars
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   417
          else raise TYPE ("Type variable " ^ Syntax.string_of_vname a ^
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   418
            " has two distinct sorts", [TVar (a, S'), T], [])
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   419
      | None => v :: tvars))
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   420
(*equivalent to foldl nodup_TVars_list, but 3X faster under Poly/ML*)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   421
and nodup_TVars_list (tvars, []) = tvars
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   422
  | nodup_TVars_list (tvars, T :: Ts) =
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   423
      nodup_TVars_list (nodup_TVars (tvars, T), Ts);
1494
22f67e796445 added nodup_Vars check in cterm_of. Prevents same var with distinct types.
nipkow
parents: 1460
diff changeset
   424
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   425
(*check for duplicate Vars with distinct types*)
1494
22f67e796445 added nodup_Vars check in cterm_of. Prevents same var with distinct types.
nipkow
parents: 1460
diff changeset
   426
fun nodup_Vars tm =
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   427
  let
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   428
    fun nodups vars tvars tm =
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   429
      (case tm of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   430
        Const (c, T) => (vars, nodup_TVars (tvars, T))
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   431
      | Free (a, T) => (vars, nodup_TVars (tvars, T))
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   432
      | Var (v as (ixn, T)) =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   433
          (case assoc_string_int (vars, ixn) of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   434
            Some T' =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   435
              if T = T' then (vars, nodup_TVars (tvars, T))
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   436
              else raise TYPE ("Variable " ^ Syntax.string_of_vname ixn ^
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   437
                " has two distinct types", [T', T], [])
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   438
          | None => (v :: vars, tvars))
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   439
      | Bound _ => (vars, tvars)
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   440
      | Abs (_, T, t) => nodups vars (nodup_TVars (tvars, T)) t
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   441
      | s $ t =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   442
          let val (vars',tvars') = nodups vars tvars s in
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   443
            nodups vars' tvars' t
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   444
          end);
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   445
  in nodups [] [] tm; () end;
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   446
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   447
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   448
fun mapfilt_atoms f (Abs (_, _, t)) = mapfilt_atoms f t
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   449
  | mapfilt_atoms f (t $ u) = mapfilt_atoms f t @ mapfilt_atoms f u
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   450
  | mapfilt_atoms f a = (case f a of Some y => [y] | None => []);
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   451
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   452
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   453
fun certify_term (sg as Sg {tsig, ...}) tm =
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   454
  let
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   455
    fun valid_const a T =
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   456
      (case const_type sg a of
2185
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   457
        Some U => Type.typ_instance (tsig, T, U)
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   458
      | _ => false);
169
1b2765146aab extend: cleaned up, adapted for new Syntax.extend;
wenzelm
parents: 155
diff changeset
   459
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   460
    fun atom_err (Const (a, T)) =
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   461
          if valid_const a T then None
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   462
          else Some ("Illegal type for constant " ^ quote a ^ " :: " ^
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   463
            quote (string_of_typ sg T))
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   464
      | atom_err (Var ((x, i), _)) =
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   465
          if i < 0 then Some ("Negative index for Var " ^ quote x) else None
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   466
      | atom_err _ = None;
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   467
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   468
    val norm_tm =
2185
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   469
      (case it_term_types (Type.typ_errors tsig) (tm, []) of
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   470
        [] => map_term_types (Type.norm_typ tsig) tm
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   471
      | errs => raise TYPE (cat_lines errs, [], [tm]));
1494
22f67e796445 added nodup_Vars check in cterm_of. Prevents same var with distinct types.
nipkow
parents: 1460
diff changeset
   472
    val _ = nodup_Vars norm_tm;
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   473
  in
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   474
    (case mapfilt_atoms atom_err norm_tm of
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   475
      [] => (norm_tm, type_of norm_tm, maxidx_of_term norm_tm)
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   476
    | errs => raise TYPE (cat_lines errs, [], [norm_tm]))
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   477
  end;
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   478
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   479
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   480
583
550292083e66 minor internal changes;
wenzelm
parents: 573
diff changeset
   481
(** infer_types **)         (*exception ERROR*)
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   482
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   483
(*
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   484
  ts: list of alternative parses (hopefully only one is type-correct)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   485
  T: expected type
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   486
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   487
  def_type: partial map from indexnames to types (constrains Frees, Vars)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   488
  def_sort: partial map from indexnames to sorts (constrains TFrees, TVars)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   489
  used: list of already used type variables
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   490
  freeze: if true then generated parameters are turned into TFrees, else TVars
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   491
*)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   492
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   493
fun infer_types sg def_type def_sort used freeze (ts, T) =
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   494
  let
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   495
    val Sg {tsig, ...} = sg;
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   496
    val prt = setmp Syntax.show_brackets true (pretty_term sg);
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   497
    val prT = pretty_typ sg;
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   498
    val infer = Type.infer_types prt prT tsig (const_type sg) def_type def_sort
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   499
      (intern_const sg) (intern_tycons sg) (intern_sort sg) used freeze;
169
1b2765146aab extend: cleaned up, adapted for new Syntax.extend;
wenzelm
parents: 155
diff changeset
   500
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   501
    val T' = certify_typ sg T handle TYPE (msg, _, _) => error msg;
623
ca9f5dbab880 added print_msg;
clasohm
parents: 620
diff changeset
   502
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   503
    fun warn () =
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   504
      if length ts > 1 andalso length ts <= ! Syntax.ambiguity_level
952
9e10962866b0 Removed an old bug which made some simultaneous instantiations fail if they
nipkow
parents: 949
diff changeset
   505
      then (*no warning shown yet*)
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   506
        warning "Currently parsed input \
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   507
          \produces more than one parse tree.\n\
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   508
          \For more information lower Syntax.ambiguity_level."
952
9e10962866b0 Removed an old bug which made some simultaneous instantiations fail if they
nipkow
parents: 949
diff changeset
   509
      else ();
623
ca9f5dbab880 added print_msg;
clasohm
parents: 620
diff changeset
   510
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   511
    datatype result =
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   512
      One of int * term * (indexname * typ) list |
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   513
      Errs of string list |
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   514
      Ambigs of term list;
623
ca9f5dbab880 added print_msg;
clasohm
parents: 620
diff changeset
   515
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   516
    fun process_term (res, (t, i)) =
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   517
      let val ([u], tye) = infer [T'] [t] in
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   518
        (case res of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   519
          One (_, t0, _) => Ambigs ([u, t0])
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   520
        | Errs _ => One (i, u, tye)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   521
        | Ambigs us => Ambigs (u :: us))
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   522
      end handle TYPE (msg, _, _) =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   523
        (case res of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   524
          Errs errs => Errs (msg :: errs)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   525
        | _ => res);
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   526
  in
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   527
    (case foldl process_term (Errs [], ts ~~ (0 upto (length ts - 1))) of
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   528
      One res =>
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   529
       (if length ts > ! Syntax.ambiguity_level then
3552
f348e8a2db4b tuned error / warning;
wenzelm
parents: 2979
diff changeset
   530
          warning "Fortunately, only one parse tree is type correct.\n\
952
9e10962866b0 Removed an old bug which made some simultaneous instantiations fail if they
nipkow
parents: 949
diff changeset
   531
            \It helps (speed!) if you disambiguate your grammar or your input."
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   532
        else (); res)
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   533
    | Errs errs => (warn (); error (cat_lines errs))
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   534
    | Ambigs us =>
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   535
        (warn (); error ("More than one term is type correct:\n" ^
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   536
          (cat_lines (map (Pretty.string_of o prt) us)))))
623
ca9f5dbab880 added print_msg;
clasohm
parents: 620
diff changeset
   537
  end;
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   538
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   539
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   540
623
ca9f5dbab880 added print_msg;
clasohm
parents: 620
diff changeset
   541
(** extend signature **)    (*exception ERROR*)
ca9f5dbab880 added print_msg;
clasohm
parents: 620
diff changeset
   542
620
f787eb061618 exported pretty_sort;
wenzelm
parents: 583
diff changeset
   543
(** signature extension functions **)  (*exception ERROR*)
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   544
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   545
fun decls_of path name_of mfixs =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   546
  map (fn (x, y, mx) => (full_name path (name_of x mx), y)) mfixs;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   547
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   548
fun no_read _ _ _ decl = decl;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   549
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   550
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   551
(* add default sort *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   552
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   553
fun ext_defsort int (syn, tsig, ctab, (path, spaces)) S =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   554
  (syn, Type.ext_tsig_defsort tsig (if int then intrn_sort spaces S else S),
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   555
    ctab, (path, spaces));
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   556
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   557
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   558
(* add type constructors *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   559
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   560
fun ext_types (syn, tsig, ctab, (path, spaces)) types =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   561
  let val decls = decls_of path Syntax.type_name types in
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   562
    (Syntax.extend_type_gram syn types,
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   563
      Type.ext_tsig_types tsig decls, ctab,
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   564
      (path, add_names spaces typeK (map fst decls)))
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   565
  end;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   566
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   567
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   568
(* add type abbreviations *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   569
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   570
fun read_abbr syn tsig spaces (t, vs, rhs_src) =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   571
  (t, vs, read_raw_typ syn tsig spaces (K None) rhs_src)
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   572
    handle ERROR => error ("in type abbreviation " ^ t);
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   573
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   574
fun ext_abbrs rd_abbr (syn, tsig, ctab, (path, spaces)) abbrs =
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   575
  let
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   576
    fun mfix_of (t, vs, _, mx) = (t, length vs, mx);
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   577
    val syn' = Syntax.extend_type_gram syn (map mfix_of abbrs);
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   578
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   579
    val abbrs' =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   580
      map (fn (t, vs, rhs, mx) =>
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   581
        (full_name path (Syntax.type_name t mx), vs, rhs)) abbrs;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   582
    val space' = add_names spaces typeK (map #1 abbrs');
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   583
    val decls = map (rd_abbr syn' tsig space') abbrs';
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   584
  in
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   585
    (syn', Type.ext_tsig_abbrs tsig decls, ctab, (path, spaces))
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   586
  end;
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   587
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   588
fun ext_tyabbrs abbrs = ext_abbrs read_abbr abbrs;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   589
fun ext_tyabbrs_i abbrs = ext_abbrs no_read abbrs;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   590
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   591
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   592
(* add type arities *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   593
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   594
fun ext_arities int (syn, tsig, ctab, (path, spaces)) arities =
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   595
  let
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   596
    fun intrn_arity (c, Ss, S) =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   597
      (intrn spaces typeK c, map (intrn_sort spaces) Ss, intrn_sort spaces S);
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   598
    val intrn = if int then map intrn_arity else I;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   599
    val tsig' = Type.ext_tsig_arities tsig (intrn arities);
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   600
    val log_types = Type.logical_types tsig';
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   601
  in
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   602
    (Syntax.extend_log_types syn log_types, tsig', ctab, (path, spaces))
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   603
  end;
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   604
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   605
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   606
(* add term constants and syntax *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   607
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   608
fun err_in_const c =
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   609
  error ("in declaration of constant " ^ quote c);
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   610
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   611
fun err_dup_consts cs =
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   612
  error ("Duplicate declaration of constant(s) " ^ commas_quote cs);
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   613
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   614
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   615
fun read_const syn tsig spaces (c, ty_src, mx) =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   616
  (c, read_raw_typ syn tsig spaces (K None) ty_src, mx)
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   617
    handle ERROR => err_in_const (Syntax.const_name c mx);
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   618
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   619
fun ext_cnsts rd_const syn_only prmode (syn, tsig, ctab, (path, spaces)) raw_consts =
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   620
  let
2979
db6941221197 improved type check error messages;
wenzelm
parents: 2963
diff changeset
   621
    fun prep_const (c, ty, mx) =
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   622
      (c, compress_type (Type.varifyT (Type.cert_typ tsig (Type.no_tvars ty))), mx)
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   623
        handle TYPE (msg, _, _) =>
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   624
          (error_msg msg; err_in_const (Syntax.const_name c mx));
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   625
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   626
    val consts = map (prep_const o rd_const syn tsig spaces) raw_consts;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   627
    val decls =
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   628
      if syn_only then []
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   629
      else decls_of path Syntax.const_name consts;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   630
  in
2197
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   631
    (Syntax.extend_const_gram syn prmode consts, tsig,
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   632
      Symtab.extend_new (ctab, decls)
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   633
        handle Symtab.DUPS cs => err_dup_consts cs,
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   634
      (path, add_names spaces constK (map fst decls)))
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   635
  end;
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   636
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   637
val ext_consts_i = ext_cnsts no_read false ("", true);
2359
97b88cafe1e8 add_modesyntax(_i): added 'inout' argument;
wenzelm
parents: 2252
diff changeset
   638
val ext_consts = ext_cnsts read_const false ("", true);
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   639
val ext_syntax_i = ext_cnsts no_read true ("", true);
2359
97b88cafe1e8 add_modesyntax(_i): added 'inout' argument;
wenzelm
parents: 2252
diff changeset
   640
val ext_syntax = ext_cnsts read_const true ("", true);
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   641
fun ext_modesyntax_i sg (prmode, consts) = ext_cnsts no_read true prmode sg consts;
2197
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   642
fun ext_modesyntax sg (prmode, consts) = ext_cnsts read_const true prmode sg consts;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   643
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   644
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   645
(* add type classes *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   646
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   647
fun const_of_class c = c ^ "_class";
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   648
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   649
fun class_of_const c_class =
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   650
  let
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   651
    val c = implode (take (size c_class - size "_class", explode c_class));
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   652
  in
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   653
    if const_of_class c = c_class then c
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   654
    else raise TERM ("class_of_const: bad name " ^ quote c_class, [])
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   655
  end;
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   656
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   657
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   658
fun ext_classes int (syn, tsig, ctab, (path, spaces)) classes =
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   659
  let
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   660
    val names = map fst classes;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   661
    val consts =
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   662
      map (fn c => (const_of_class c, a_itselfT --> propT, NoSyn)) names;
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   663
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   664
    val full_names = map (full_name path) names;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   665
    val spaces' = add_names spaces classK full_names;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   666
    val intrn = if int then map (intrn_class spaces') else I;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   667
    val classes' =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   668
      ListPair.map (fn (c, (_, cs)) => (c, intrn cs)) (full_names, classes);
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   669
  in
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   670
    ext_consts_i
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   671
      (Syntax.extend_consts syn names,
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   672
        Type.ext_tsig_classes tsig classes', ctab, (path, spaces'))
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   673
    consts
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   674
  end;
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   675
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   676
2963
f3b5af1c5a67 renamed subclass to classrel;
wenzelm
parents: 2693
diff changeset
   677
(* add to classrel *)
421
95e1d4faa863 added add_classrel;
wenzelm
parents: 418
diff changeset
   678
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   679
fun ext_classrel int (syn, tsig, ctab, (path, spaces)) pairs =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   680
  let val intrn = if int then map (pairself (intrn_class spaces)) else I in
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   681
    (syn, Type.ext_tsig_classrel tsig (intrn pairs), ctab, (path, spaces))
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   682
  end;
421
95e1d4faa863 added add_classrel;
wenzelm
parents: 418
diff changeset
   683
95e1d4faa863 added add_classrel;
wenzelm
parents: 418
diff changeset
   684
1159
998a5c3451bf added add_trrules_i;
wenzelm
parents: 986
diff changeset
   685
(* add to syntax *)
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   686
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   687
fun ext_syn extfun (syn, tsig, ctab, names) args =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   688
  (extfun syn args, tsig, ctab, names);
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   689
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   690
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   691
(* add to path *)
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   692
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   693
fun ext_path (syn, tsig, ctab, (path, spaces)) elem =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   694
  let
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   695
    val path' =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   696
      if elem = ".." andalso not (null path) then fst (split_last path)
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   697
      else if elem = "/" then []
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   698
      else path @ NameSpace.unpack elem;
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   699
  in
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   700
    (syn, tsig, ctab, (path', spaces))
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   701
  end;      
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   702
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   703
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   704
(* add to name space *)
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   705
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   706
fun ext_space (syn, tsig, ctab, (path, spaces)) (kind, names) =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   707
  (syn, tsig, ctab, (path, add_names spaces kind names));
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   708
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   709
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   710
(* build signature *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   711
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   712
fun ext_stamps stamps name =
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   713
  let
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   714
    val stmps = (case stamps of ref "#" :: ss => ss | ss => ss);
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   715
  in
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   716
    if exists (equal name o !) stmps then
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   717
      error ("Theory already contains a " ^ quote name ^ " component")
402
16a8fe4f2250 added subsort, norm_sort, classes;
wenzelm
parents: 386
diff changeset
   718
    else ref name :: stmps
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   719
  end;
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   720
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   721
fun make_sign (syn, tsig, ctab, (path, spaces)) stamps name =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   722
  Sg {tsig = tsig, const_tab = ctab, syn = syn, path = path, spaces = spaces,
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   723
    stamps = ext_stamps stamps name};
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   724
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   725
fun extend_sign extfun name decls (Sg {tsig, const_tab, syn, path, spaces, stamps}) =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   726
  make_sign (extfun (syn, tsig, const_tab, (path, spaces)) decls) stamps name;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   727
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   728
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   729
(* the external interfaces *)
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   730
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   731
val add_classes      = extend_sign (ext_classes true) "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   732
val add_classes_i    = extend_sign (ext_classes false) "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   733
val add_classrel     = extend_sign (ext_classrel true) "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   734
val add_classrel_i   = extend_sign (ext_classrel false) "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   735
val add_defsort      = extend_sign (ext_defsort true) "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   736
val add_defsort_i    = extend_sign (ext_defsort false) "#";
2197
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   737
val add_types        = extend_sign ext_types "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   738
val add_tyabbrs      = extend_sign ext_tyabbrs "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   739
val add_tyabbrs_i    = extend_sign ext_tyabbrs_i "#";
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   740
val add_arities      = extend_sign (ext_arities true) "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   741
val add_arities_i    = extend_sign (ext_arities false) "#";
2197
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   742
val add_consts       = extend_sign ext_consts "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   743
val add_consts_i     = extend_sign ext_consts_i "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   744
val add_syntax       = extend_sign ext_syntax "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   745
val add_syntax_i     = extend_sign ext_syntax_i "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   746
val add_modesyntax   = extend_sign ext_modesyntax "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   747
val add_modesyntax_i = extend_sign ext_modesyntax_i "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   748
val add_trfuns       = extend_sign (ext_syn Syntax.extend_trfuns) "#";
2385
73d1435aa729 added typed print translations;
wenzelm
parents: 2359
diff changeset
   749
val add_trfunsT      = extend_sign (ext_syn Syntax.extend_trfunsT) "#";
2693
8300bba275e3 added add_tokentrfuns;
wenzelm
parents: 2672
diff changeset
   750
val add_tokentrfuns  = extend_sign (ext_syn Syntax.extend_tokentrfuns) "#";
2197
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   751
val add_trrules      = extend_sign (ext_syn Syntax.extend_trrules) "#";
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   752
val add_trrules_i    = extend_sign (ext_syn Syntax.extend_trrules_i) "#";
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   753
val add_path         = extend_sign ext_path "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   754
val add_space        = extend_sign ext_space "#";
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   755
fun add_name name sg = extend_sign K name () sg;
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   756
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   757
val make_draft = add_name "#";
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   758
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   759
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   760
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   761
(** merge signatures **)    (*exception TERM*) (*exception ERROR (* FIXME *) handle_error? *)
143
f8152ca36cd5 Sign.extend: Syntax.extend now called with read_ty;
wenzelm
parents: 19
diff changeset
   762
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   763
fun merge (sg1, sg2) =
2185
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   764
  if fast_subsig (sg2, sg1) then sg1
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   765
  else if fast_subsig (sg1, sg2) then sg2
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   766
  else if subsig (sg2, sg1) then sg1
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   767
  else if subsig (sg1, sg2) then sg2
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   768
  else if is_draft sg1 orelse is_draft sg2 then
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   769
    raise TERM ("Illegal merge of draft signatures", [])
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   770
  else
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   771
    (*neither is union already; must form union*)
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   772
    let
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   773
      val Sg {tsig = tsig1, const_tab = const_tab1, syn = syn1,
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   774
        path, spaces = spaces1, stamps = stamps1} = sg1;
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   775
      val Sg {tsig = tsig2, const_tab = const_tab2, syn = syn2,
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   776
        path = _, spaces = spaces2, stamps = stamps2} = sg2;
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   777
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   778
402
16a8fe4f2250 added subsort, norm_sort, classes;
wenzelm
parents: 386
diff changeset
   779
      val stamps = merge_rev_lists stamps1 stamps2;
16a8fe4f2250 added subsort, norm_sort, classes;
wenzelm
parents: 386
diff changeset
   780
      val _ =
16a8fe4f2250 added subsort, norm_sort, classes;
wenzelm
parents: 386
diff changeset
   781
        (case duplicates (stamp_names stamps) of
16a8fe4f2250 added subsort, norm_sort, classes;
wenzelm
parents: 386
diff changeset
   782
          [] => ()
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   783
        | dups => raise TERM ("Attempt to merge different versions of theories "
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   784
            ^ commas_quote dups, []));
402
16a8fe4f2250 added subsort, norm_sort, classes;
wenzelm
parents: 386
diff changeset
   785
2185
f9686e7e6d4d subsig tuning;
wenzelm
parents: 2184
diff changeset
   786
      val tsig = Type.merge_tsigs (tsig1, tsig2);
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   787
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   788
      val const_tab = Symtab.merge (op =) (const_tab1, const_tab2)
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   789
        handle Symtab.DUPS cs =>
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   790
          raise TERM ("Incompatible types for constant(s) " ^ commas_quote cs, []);
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   791
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   792
      val syn = Syntax.merge_syntaxes syn1 syn2;
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   793
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   794
      val kinds = distinct (map fst (spaces1 @ spaces2));
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   795
      val spaces =
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   796
        kinds ~~
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   797
          ListPair.map NameSpace.merge
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   798
            (map (space_of spaces1) kinds, map (space_of spaces2) kinds);
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   799
    in
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   800
      Sg {tsig = tsig, const_tab = const_tab, syn = syn,
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   801
        path = path, spaces = spaces, stamps = stamps}
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   802
    end;
143
f8152ca36cd5 Sign.extend: Syntax.extend now called with read_ty;
wenzelm
parents: 19
diff changeset
   803
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   804
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   805
251
c9b984c0a674 major cleanup;
wenzelm
parents: 229
diff changeset
   806
(** the Pure signature **)
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   807
922
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   808
val proto_pure =
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   809
  make_sign (Syntax.pure_syn, Type.tsig0, Symtab.null, ([], [])) [] "#"
410
c8171ee32744 replaced infix also by |>
wenzelm
parents: 402
diff changeset
   810
  |> add_types
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   811
   (("fun", 2, NoSyn) ::
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   812
    ("prop", 0, NoSyn) ::
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   813
    ("itself", 1, NoSyn) ::
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   814
    Syntax.pure_types)
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   815
  |> add_classes_i [(logicC, [])]
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   816
  |> add_defsort_i logicS
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   817
  |> add_arities_i
386
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   818
   [("fun", [logicS, logicS], logicS),
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   819
    ("prop", [], logicS),
e9ba9f7e2542 added const_type: sg -> typ option;
wenzelm
parents: 277
diff changeset
   820
    ("itself", [logicS], logicS)]
562
e9572d03b724 added pretty_sg;
wenzelm
parents: 421
diff changeset
   821
  |> add_syntax Syntax.pure_syntax
2359
97b88cafe1e8 add_modesyntax(_i): added 'inout' argument;
wenzelm
parents: 2252
diff changeset
   822
  |> add_modesyntax (("symbols", true), Syntax.pure_sym_syntax)
410
c8171ee32744 replaced infix also by |>
wenzelm
parents: 402
diff changeset
   823
  |> add_trfuns Syntax.pure_trfuns
2693
8300bba275e3 added add_tokentrfuns;
wenzelm
parents: 2672
diff changeset
   824
  |> add_trfunsT Syntax.pure_trfunsT
410
c8171ee32744 replaced infix also by |>
wenzelm
parents: 402
diff changeset
   825
  |> add_consts
2197
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   826
   [("==", "['a::{}, 'a] => prop", InfixrName ("==", 2)),
e895937fcd56 added add_modesyntax(_i);
wenzelm
parents: 2187
diff changeset
   827
    ("=?=", "['a::{}, 'a] => prop", InfixrName ("=?=", 2)),
2211
0487add593b5 restored changed prettyprinting of ==>;
wenzelm
parents: 2197
diff changeset
   828
    ("==>", "[prop, prop] => prop", Mixfix ("(_/ ==> _)", [2, 1], 1)),
865
b38c67991122 added optional precedence for body of binder;
clasohm
parents: 763
diff changeset
   829
    ("all", "('a => prop) => prop", Binder ("!!", 0, 0)),
573
2fa5ef27bd0a removed constant _constrain from Pure sig;
wenzelm
parents: 562
diff changeset
   830
    ("TYPE", "'a itself", NoSyn)]
2211
0487add593b5 restored changed prettyprinting of ==>;
wenzelm
parents: 2197
diff changeset
   831
  |> add_syntax
0487add593b5 restored changed prettyprinting of ==>;
wenzelm
parents: 2197
diff changeset
   832
   [("==>", "[prop, prop] => prop", Delimfix "op ==>")]
922
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   833
  |> add_name "ProtoPure";
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   834
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   835
val pure = proto_pure
1180
9b2efb601898 moved mixfix syntax to Syntax/mixfix.ML
clasohm
parents: 1178
diff changeset
   836
  |> add_syntax Syntax.pure_appl_syntax
410
c8171ee32744 replaced infix also by |>
wenzelm
parents: 402
diff changeset
   837
  |> add_name "Pure";
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   838
922
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   839
val cpure = proto_pure
1180
9b2efb601898 moved mixfix syntax to Syntax/mixfix.ML
clasohm
parents: 1178
diff changeset
   840
  |> add_syntax Syntax.pure_applC_syntax
922
196ca0973a6d added CPure (curried functions) and ProtoPure (ancestor of Pure and CPure)
clasohm
parents: 901
diff changeset
   841
  |> add_name "CPure";
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   842
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   843
0
a5a9c433f639 Initial revision
clasohm
parents:
diff changeset
   844
end;
3791
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   845
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   846
c5db2c87a646 now supports qualified names (intern vs. extern) !!!
wenzelm
parents: 3552
diff changeset
   847
val long_names = Sign.long_names;