src/Pure/theory.ML
author wenzelm
Fri, 05 Jun 1998 14:26:55 +0200
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use Object.T and Object.kind; added print_data; improved get_data, put_data: more abstract; add_axioms(_i), add_oracle: made atomic transactions;
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(*  Title:      Pure/theory.ML
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    ID:         $Id$
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    Author:     Lawrence C Paulson and Markus Wenzel
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    Copyright   1996  University of Cambridge
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Theories.
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*)
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(*this part made pervasive*)
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signature BASIC_THEORY =
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sig
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  type theory
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  type local_theory
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  exception THEORY of string * theory list
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  val rep_theory: theory ->
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    {sign: Sign.sg,
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      axioms: term Symtab.table,
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      oracles: ((Sign.sg * Object.T -> term) * stamp) Symtab.table,
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      parents: theory list,
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      ancestors: theory list}
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  val sign_of: theory -> Sign.sg
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  val syn_of: theory -> Syntax.syntax
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  val parents_of: theory -> theory list
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  val ancestors_of: theory -> theory list
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  val subthy: theory * theory -> bool
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  val eq_thy: theory * theory -> bool
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  val cert_axm: Sign.sg -> string * term -> string * term
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  val read_axm: Sign.sg -> string * string -> string * term
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  val inferT_axm: Sign.sg -> string * term -> string * term
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  val merge_theories: string -> theory * theory -> theory
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end
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signature THEORY =
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sig
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  include BASIC_THEORY
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  val apply: (theory -> theory) list -> theory -> theory
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  val axiomK: string
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  val oracleK: string
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  (*theory extension primitives*)
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  val add_classes: (bclass * xclass list) list -> theory -> theory
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  val add_classes_i: (bclass * class list) list -> theory -> theory
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  val add_classrel: (xclass * xclass) list -> theory -> theory
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  val add_classrel_i: (class * class) list -> theory -> theory
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  val add_defsort: xsort -> theory -> theory
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  val add_defsort_i: sort -> theory -> theory
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  val add_types: (bstring * int * mixfix) list -> theory -> theory
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  val add_nonterminals: bstring list -> theory -> theory
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  val add_tyabbrs: (bstring * string list * string * mixfix) list
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    -> theory -> theory
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  val add_tyabbrs_i: (bstring * string list * typ * mixfix) list
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    -> theory -> theory
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  val add_arities: (xstring * xsort list * xsort) list -> theory -> theory
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  val add_arities_i: (string * sort list * sort) list -> theory -> theory
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  val add_consts: (bstring * string * mixfix) list -> theory -> theory
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  val add_consts_i: (bstring * typ * mixfix) list -> theory -> theory
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  val add_syntax: (bstring * string * mixfix) list -> theory -> theory
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  val add_syntax_i: (bstring * typ * mixfix) list -> theory -> theory
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  val add_modesyntax: string * bool -> (bstring * string * mixfix) list -> theory -> theory
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  val add_modesyntax_i: string * bool -> (bstring * typ * mixfix) list -> theory -> theory
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  val add_trfuns:
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    (string * (Syntax.ast list -> Syntax.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 * (Syntax.ast list -> Syntax.ast)) list -> theory -> theory
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  val add_trfunsT:
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    (string * (bool -> typ -> term list -> term)) list -> theory -> theory
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  val add_tokentrfuns:
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    (string * string * (string -> string * int)) list -> theory -> theory
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  val add_trrules: (xstring * string) Syntax.trrule list -> theory -> theory
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  val add_trrules_i: Syntax.ast Syntax.trrule list -> theory -> theory
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  val add_axioms: (bstring * string) list -> theory -> theory
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  val add_axioms_i: (bstring * term) list -> theory -> theory
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  val add_oracle: bstring * (Sign.sg * Object.T -> term) -> theory -> theory
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  val add_defs: (bstring * string) list -> theory -> theory
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  val add_defs_i: (bstring * term) list -> theory -> theory
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  val add_path: string -> theory -> theory
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  val parent_path: theory -> theory
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  val root_path: theory -> theory
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  val add_space: string * string list -> theory -> theory
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  val add_name: string -> theory -> theory
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  val init_data: Object.kind -> (Object.T * (Object.T -> Object.T) *
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    (Object.T * Object.T -> Object.T) * (Sign.sg -> Object.T -> unit)) -> theory -> theory
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  val print_data: Object.kind -> theory -> unit
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  val get_data: Object.kind -> (Object.T -> 'a) -> theory -> 'a
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  val put_data: Object.kind -> ('a -> Object.T) -> 'a -> theory -> theory
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  val prep_ext: theory -> theory
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  val prep_ext_merge: theory list -> theory
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  val requires: theory -> string -> string -> unit
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  val pre_pure: theory
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end;
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structure Theory: THEORY =
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struct
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(** datatype theory **)
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datatype theory =
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  Theory of {
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    sign: Sign.sg,
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    axioms: term Symtab.table,
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    oracles: ((Sign.sg * Object.T -> term) * stamp) Symtab.table,
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    parents: theory list,
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    ancestors: theory list};
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(*forward definition for Isar proof contexts*)
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type local_theory = theory * Object.T Symtab.table;
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fun make_theory sign axms oras parents ancestors =
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  Theory {sign = sign, axioms = axms, oracles = oras,
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    parents = parents, ancestors = ancestors};
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fun rep_theory (Theory args) = args;
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val sign_of = #sign o rep_theory;
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val syn_of = #syn o Sign.rep_sg o sign_of;
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val parents_of = #parents o rep_theory;
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val ancestors_of = #ancestors o rep_theory;
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(*errors involving theories*)
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exception THEORY of string * theory list;
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(*compare theories*)
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val subthy = Sign.subsig o pairself sign_of;
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val eq_thy = Sign.eq_sg o pairself sign_of;
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(*check for some named theory*)
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fun requires thy name what =
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  if exists (equal name) (Sign.stamp_names_of (sign_of thy)) then ()
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  else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what);
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(*partial Pure theory*)
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val pre_pure = make_theory Sign.pre_pure Symtab.empty Symtab.empty [] [];
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(*apply transformers*)
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fun apply [] thy = thy
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  | apply (f :: fs) thy = apply fs (f thy);
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(** extend theory **)
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(*name space kinds*)
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val axiomK = "axiom";
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val oracleK = "oracle";
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(* extend logical part of a theory *)
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fun err_dup_axms names =
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  error ("Duplicate axiom name(s) " ^ commas_quote names);
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fun err_dup_oras names =
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  error ("Duplicate oracles " ^ commas_quote names);
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fun ext_theory thy ext_sg new_axms new_oras =
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  let
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    val Theory {sign, axioms, oracles, parents, ancestors} = thy;
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    val draft = Sign.is_draft sign;
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    val axioms' =
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      Symtab.extend (if draft then axioms else Symtab.empty, new_axms)
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        handle Symtab.DUPS names => err_dup_axms names;
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    val oracles' =
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      Symtab.extend (oracles, new_oras)
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        handle Symtab.DUPS names => err_dup_oras names;
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    val (parents', ancestors') =
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      if draft then (parents, ancestors) else ([thy], thy :: ancestors);
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  in
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    make_theory (ext_sg sign) axioms' oracles' parents' ancestors'
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  end;
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(* extend signature of a theory *)
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fun ext_sign extfun decls thy = ext_theory thy (extfun decls) [] [];
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val add_classes      = ext_sign Sign.add_classes;
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val add_classes_i    = ext_sign Sign.add_classes_i;
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val add_classrel     = ext_sign Sign.add_classrel;
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val add_classrel_i   = ext_sign Sign.add_classrel_i;
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val add_defsort      = ext_sign Sign.add_defsort;
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val add_defsort_i    = ext_sign Sign.add_defsort_i;
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val add_types        = ext_sign Sign.add_types;
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val add_nonterminals = ext_sign Sign.add_nonterminals;
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val add_tyabbrs      = ext_sign Sign.add_tyabbrs;
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val add_tyabbrs_i    = ext_sign Sign.add_tyabbrs_i;
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val add_arities      = ext_sign Sign.add_arities;
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val add_arities_i    = ext_sign Sign.add_arities_i;
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val add_consts       = ext_sign Sign.add_consts;
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val add_consts_i     = ext_sign Sign.add_consts_i;
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val add_syntax       = ext_sign Sign.add_syntax;
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val add_syntax_i     = ext_sign Sign.add_syntax_i;
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val add_modesyntax   = curry (ext_sign Sign.add_modesyntax);
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val add_modesyntax_i = curry (ext_sign Sign.add_modesyntax_i);
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val add_trfuns       = ext_sign Sign.add_trfuns;
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val add_trfunsT      = ext_sign Sign.add_trfunsT;
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val add_tokentrfuns  = ext_sign Sign.add_tokentrfuns;
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val add_trrules      = ext_sign Sign.add_trrules;
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val add_trrules_i    = ext_sign Sign.add_trrules_i;
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val add_path         = ext_sign Sign.add_path;
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val parent_path      = add_path "..";
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val root_path        = add_path "/";
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val add_space        = ext_sign Sign.add_space;
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val add_name         = ext_sign Sign.add_name;
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val prep_ext         = ext_sign (K Sign.prep_ext) ();
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(** add axioms **)
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(* prepare axioms *)
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fun err_in_axm name =
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  error ("The error(s) above occurred in axiom " ^ quote name);
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fun no_vars tm =
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  if null (term_vars tm) andalso null (term_tvars tm) then tm
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  else error "Illegal schematic variable(s) in term";
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fun cert_axm sg (name, raw_tm) =
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  let
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    val (t, T, _) = Sign.certify_term sg raw_tm
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      handle TYPE (msg, _, _) => error msg
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           | TERM (msg, _) => error msg;
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  in
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    assert (T = propT) "Term not of type prop";
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    (name, no_vars t)
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  end
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  handle ERROR => err_in_axm name;
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(*Some duplication of code with read_def_cterm*)
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fun read_axm sg (name, str) = 
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  let
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    val ts = Syntax.read (#syn (Sign.rep_sg sg)) propT str;
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    val (t, _) = Sign.infer_types sg (K None) (K None) [] true (ts, propT);
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  in cert_axm sg (name,t) end
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  handle ERROR => err_in_axm name;
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fun inferT_axm sg (name, pre_tm) =
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  let
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    val (t, _) = Sign.infer_types sg (K None) (K None) [] true ([pre_tm], propT);
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  in (name, no_vars t) end
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  handle ERROR => err_in_axm name;
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(* extend axioms of a theory *)
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fun ext_axms prep_axm raw_axms (thy as Theory {sign, ...}) =
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  let
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    val raw_axms' = map (apfst (Sign.full_name sign)) raw_axms;
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    val axioms =
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      map (apsnd (Term.compress_term o Logic.varify) o prep_axm sign) raw_axms';
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    val ext_sg = Sign.add_space (axiomK, map fst axioms);
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  in
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    ext_theory thy ext_sg axioms []
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  end;
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val add_axioms = ext_axms read_axm;
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val add_axioms_i = ext_axms cert_axm;
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(* add oracle **)
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fun add_oracle (raw_name, oracle) (thy as Theory {sign, ...}) =
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  let
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    val name = Sign.full_name sign raw_name;
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    val ext_sg = Sign.add_space (oracleK, [name]);
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  in
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    ext_theory thy ext_sg [] [(name, (oracle, stamp ()))]
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  end;
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(** add constant definitions **)
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(* all_axioms_of *)
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(*results may contain duplicates!*)
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fun all_axioms_of thy =
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  flat (map (Symtab.dest o #axioms o rep_theory) (thy :: ancestors_of thy));
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(* clash_types, clash_consts *)
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(*check if types have common instance (ignoring sorts)*)
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fun clash_types ty1 ty2 =
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  let
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    val ty1' = Type.varifyT ty1;
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    val ty2' = incr_tvar (maxidx_of_typ ty1' + 1) (Type.varifyT ty2);
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  in
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    Type.raw_unify (ty1', ty2')
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  end;
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fun clash_consts (c1, ty1) (c2, ty2) =
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  c1 = c2 andalso clash_types ty1 ty2;
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(* clash_defns *)
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fun clash_defn c_ty (name, tm) =
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  let val (c, ty') = dest_Const (head_of (fst (Logic.dest_equals tm))) in
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    if clash_consts c_ty (c, ty') then Some (name, ty') else None
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  end handle TERM _ => None;
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fun clash_defns c_ty axms =
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  distinct (mapfilter (clash_defn c_ty) axms);
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(* dest_defn *)
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   313
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wenzelm
parents: 2979
diff changeset
   314
fun dest_defn tm =
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   315
  let
3787
67571f49ebe3 new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents: 3767
diff changeset
   316
    fun err msg = raise TERM (msg, [tm]);
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   317
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   318
    val (lhs, rhs) = Logic.dest_equals (Logic.strip_imp_concl tm)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   319
      handle TERM _ => err "Not a meta-equality (==)";
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   320
    val (head, args) = strip_comb lhs;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   321
    val (c, ty) = dest_Const head
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   322
      handle TERM _ => err "Head of lhs not a constant";
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   323
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   324
    fun occs_const (Const c_ty') = (c_ty' = (c, ty))
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   325
      | occs_const (Abs (_, _, t)) = occs_const t
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   326
      | occs_const (t $ u) = occs_const t orelse occs_const u
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   327
      | occs_const _ = false;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   328
4141
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   329
    fun dest_free (Free (x, _)) = x
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   330
      | dest_free (Const ("TYPE", Type ("itself", [TFree (x, _)]))) = x
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   331
      | dest_free _ = raise Match;
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   332
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   333
    val show_frees = commas_quote o map dest_free;
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   334
    val show_tfrees = commas_quote o map fst;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   335
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   336
    val lhs_dups = duplicates args;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   337
    val rhs_extras = gen_rems (op =) (term_frees rhs, args);
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   338
    val rhs_extrasT = gen_rems (op =) (term_tfrees rhs, typ_tfrees ty);
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   339
  in
4141
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   340
    if not (forall (can dest_free) args) then
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   341
      err "Arguments (on lhs) must be variables"
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   342
    else if not (null lhs_dups) then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   343
      err ("Duplicate variables on lhs: " ^ show_frees lhs_dups)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   344
    else if not (null rhs_extras) then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   345
      err ("Extra variables on rhs: " ^ show_frees rhs_extras)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   346
    else if not (null rhs_extrasT) then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   347
      err ("Extra type variables on rhs: " ^ show_tfrees rhs_extrasT)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   348
    else if occs_const rhs then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   349
      err ("Constant to be defined occurs on rhs")
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   350
    else (c, ty)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   351
  end;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   352
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   353
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   354
(* check_defn *)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   355
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   356
fun err_in_defn sg name msg =
4974
45b7a51342a1 fixed error msgs;
wenzelm
parents: 4970
diff changeset
   357
  (error_msg msg; error ("The error(s) above occurred in definition " ^
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   358
    quote (Sign.full_name sg name)));
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   359
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   360
fun check_defn sign (axms, (name, tm)) =
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   361
  let
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   362
    fun show_const (c, ty) = quote (Pretty.string_of (Pretty.block
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   363
      [Pretty.str (c ^ " ::"), Pretty.brk 1, Sign.pretty_typ sign ty]));
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   364
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   365
    fun show_defn c (dfn, ty') = show_const (c, ty') ^ " in " ^ dfn;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   366
    fun show_defns c = cat_lines o map (show_defn c);
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   367
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   368
    val (c, ty) = dest_defn tm
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   369
      handle TERM (msg, _) => err_in_defn sign name msg;
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   370
    val defns = clash_defns (c, ty) axms;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   371
  in
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   372
    if not (null defns) then
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   373
      err_in_defn sign name ("Definition of " ^ show_const (c, ty) ^
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   374
        "\nclashes with " ^ show_defns c defns)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   375
    else (name, tm) :: axms
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   376
  end;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   377
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   378
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   379
(* add_defs *)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   380
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   381
fun ext_defns prep_axm raw_axms thy =
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   382
  let
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   383
    val axms = map (prep_axm (sign_of thy)) raw_axms;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   384
    val all_axms = all_axioms_of thy;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   385
  in
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   386
    foldl (check_defn (sign_of thy)) (all_axms, axms);
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   387
    add_axioms_i axms thy
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   388
  end;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   389
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   390
val add_defs_i = ext_defns cert_axm;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   391
val add_defs = ext_defns read_axm;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   392
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   393
3878
0258594baaa9 remove merge_theories;
wenzelm
parents: 3865
diff changeset
   394
3865
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   395
(** additional theory data **)
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   396
4996
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   397
val init_data = curry (ext_sign Sign.init_data);
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   398
fun print_data kind = Sign.print_data kind o sign_of;
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   399
fun get_data kind f = Sign.get_data kind f o sign_of;
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   400
fun put_data kind f = ext_sign (Sign.put_data kind f);
3865
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   401
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   402
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   403
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   404
(** merge theories **)		(*exception ERROR*)
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   405
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   406
fun merge_sign (sg, thy) =
4627
ae95666c71cc Sign.merge vs. Sign.nontriv_merge;
wenzelm
parents: 4617
diff changeset
   407
  Sign.nontriv_merge (sg, sign_of thy) handle TERM (msg, _) => error msg;
1526
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   408
3878
0258594baaa9 remove merge_theories;
wenzelm
parents: 3865
diff changeset
   409
(*merge list of theories from left to right, preparing extend*)
3967
edd5ff9371f8 sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents: 3956
diff changeset
   410
fun prep_ext_merge thys =
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   411
  if null thys then
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   412
    error "Merge: no parent theories"
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   413
  else if exists (Sign.is_draft o sign_of) thys then
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   414
    error "Attempt to merge draft theories"
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   415
  else
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   416
    let
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   417
      val sign' =
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   418
        foldl merge_sign (sign_of (hd thys), tl thys)
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   419
        |> Sign.prep_ext
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   420
        |> Sign.add_path "/";
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   421
4488
3e56603fde06 renamed Symtab.null to Symtab.empty;
wenzelm
parents: 4344
diff changeset
   422
      val axioms' = Symtab.empty;
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   423
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   424
      fun eq_ora ((_, (_, s1: stamp)), (_, (_, s2))) = s1 = s2;
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   425
      val oracles' =
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   426
        Symtab.make (gen_distinct eq_ora
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   427
          (flat (map (Symtab.dest o #oracles o rep_theory) thys)))
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   428
        handle Symtab.DUPS names => err_dup_oras names;
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   429
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   430
      val parents' = gen_distinct eq_thy thys;
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   431
      val ancestors' =
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   432
        gen_distinct eq_thy (parents' @ flat (map ancestors_of thys));
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   433
    in
4996
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   434
      make_theory sign' axioms' oracles' parents' ancestors'
3996
b7548325adc4 tuned names;
wenzelm
parents: 3971
diff changeset
   435
    end;
1526
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   436
3885
dccac762b0be added merge_theories (new name arg);
wenzelm
parents: 3878
diff changeset
   437
fun merge_theories name (thy1, thy2) =
3967
edd5ff9371f8 sg_ref: automatic adjustment of thms of draft theories;
wenzelm
parents: 3956
diff changeset
   438
  prep_ext_merge [thy1, thy2]
3885
dccac762b0be added merge_theories (new name arg);
wenzelm
parents: 3878
diff changeset
   439
  |> add_name name;
dccac762b0be added merge_theories (new name arg);
wenzelm
parents: 3878
diff changeset
   440
dccac762b0be added merge_theories (new name arg);
wenzelm
parents: 3878
diff changeset
   441
1526
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   442
end;
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   443
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   444
structure BasicTheory: BASIC_THEORY = Theory;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   445
open BasicTheory;