src/Pure/theory.ML
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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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The abstract type "theory" of theories.
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*)
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signature BASIC_THEORY =
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sig
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  type 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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      defs: Defs.graph,
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      axioms: term NameSpace.table,
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      oracles: ((Sign.sg * Object.T -> term) * stamp) NameSpace.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 is_draft: theory -> bool
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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_def_axm: Sign.sg * (indexname -> typ option) * (indexname -> sort option) ->
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    string list -> string * string -> 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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end
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signature THEORY =
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sig
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  include BASIC_THEORY
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  val axioms_of: theory -> (string * term) list
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  val all_axioms_of: theory -> (string * term) list
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  val add_classes: (bstring * xstring list) list -> theory -> theory
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  val add_classes_i: (bstring * class list) list -> theory -> theory
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  val add_classrel: (xstring * xstring) list -> theory -> theory
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  val add_classrel_i: (class * class) list -> theory -> theory
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  val add_defsort: string -> 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 * string list * string) 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 del_modesyntax: string * bool -> (bstring * string * mixfix) list -> theory -> theory
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  val del_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_advanced_trfuns:
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    (string * (Sign.sg -> Syntax.ast list -> Syntax.ast)) list *
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    (string * (Sign.sg -> term list -> term)) list *
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    (string * (Sign.sg -> term list -> term)) list *
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    (string * (Sign.sg -> Syntax.ast list -> Syntax.ast)) list -> theory -> theory
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  val add_advanced_trfunsT:
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    (string * (Sign.sg -> bool -> typ -> term list -> term)) list -> theory -> theory
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  val add_tokentrfuns:
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    (string * string * (string -> string * real)) list -> theory -> theory
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  val add_mode_tokentrfuns: string -> (string * (string -> string * real)) list
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    -> 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_finals: bool -> string list -> theory -> theory
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  val add_finals_i: bool -> term list -> theory -> theory
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  val add_defs: bool -> (bstring * string) list -> theory -> theory
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  val add_defs_i: bool -> (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 absolute_path: theory -> theory
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  val qualified_names: theory -> theory
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  val no_base_names: theory -> theory
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  val custom_accesses: (string list -> string list list) -> theory -> theory
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  val set_policy: (string -> bstring -> string) * (string list -> string list list) ->
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    theory -> theory
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  val restore_naming: theory -> theory -> theory
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  val hide_space: bool -> string * xstring list -> theory -> theory
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  val hide_space_i: bool -> string * string list -> theory -> theory
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  val hide_classes: bool -> string list -> theory -> theory
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  val hide_types: bool -> string list -> theory -> theory
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  val hide_consts: bool -> string list -> theory -> theory
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  val add_name: string -> theory -> theory
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  val copy: 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 assert_super: theory -> theory -> theory
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  val pre_pure: theory
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end;
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signature PRIVATE_THEORY =
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sig
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  include THEORY
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  val init_data: Object.kind -> (Object.T * (Object.T -> 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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end;
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structure Theory: PRIVATE_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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    defs: Defs.graph,
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    axioms: term NameSpace.table,
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    oracles: ((Sign.sg * Object.T -> term) * stamp) NameSpace.table,
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    parents: theory list,
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    ancestors: theory list};
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fun make_theory sign defs axioms oracles parents ancestors =
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  Theory {sign = sign, defs = defs, axioms = axioms,
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    oracles = oracles, 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 is_draft = Sign.is_draft o sign_of;
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val syn_of = Sign.syn_of 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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val axioms_of = Symtab.dest o #2 o #axioms o rep_theory;
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fun all_axioms_of thy = List.concat (map axioms_of (thy :: ancestors_of thy));
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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 theory*)
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fun requires thy name what =
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  if Sign.exists_stamp name (sign_of thy) then ()
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  else error ("Require theory " ^ quote name ^ " as an ancestor for " ^ what);
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fun assert_super thy1 thy2 =
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  if subthy (thy1, thy2) then thy2
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  else raise THEORY ("Not a super theory", [thy1, thy2]);
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(*partial Pure theory*)
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val pre_pure =
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  make_theory Sign.pre_pure Defs.empty NameSpace.empty_table NameSpace.empty_table [] [];
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(** extend theory **)
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(* extend logical part of a theory *)
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fun err_dup_axms dups = error ("Duplicate axiom(s): " ^ commas_quote dups);
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fun err_dup_oras dups = error ("Duplicate oracle(s): " ^ commas_quote dups);
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fun ext_theory thy ext_sg axms oras =
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  let
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    val Theory {sign, defs, axioms, oracles, parents, ancestors} = thy;
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    val draft = Sign.is_draft sign;
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    val naming = Sign.naming_of sign;
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    val axioms' = NameSpace.extend_table naming
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        (if draft then axioms else NameSpace.empty_table, axms)
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      handle Symtab.DUPS dups => err_dup_axms dups;
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    val oracles' = NameSpace.extend_table naming (oracles, oras)
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      handle Symtab.DUPS dups => err_dup_oras dups;
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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 make_theory (ext_sg sign) defs axioms' oracles' parents' ancestors' end;
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(* extend signature of a theory *)
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fun ext_sign ext_sg args thy = ext_theory thy (ext_sg args) [] [];
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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 del_modesyntax         = curry (ext_sign Sign.del_modesyntax);
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val del_modesyntax_i       = curry (ext_sign Sign.del_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_advanced_trfuns    = ext_sign Sign.add_advanced_trfuns;
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val add_advanced_trfunsT   = ext_sign Sign.add_advanced_trfunsT;
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val add_tokentrfuns        = ext_sign Sign.add_tokentrfuns;
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fun add_mode_tokentrfuns m = add_tokentrfuns o map (fn (s, f) => (m, s, f));
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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 absolute_path          = add_path "//";
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val qualified_names        = ext_sign (K Sign.qualified_names) ();
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val no_base_names          = ext_sign (K Sign.no_base_names) ();
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val custom_accesses        = ext_sign Sign.custom_accesses;
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val set_policy             = ext_sign Sign.set_policy;
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val restore_naming         = ext_sign Sign.restore_naming o sign_of;
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val hide_space             = ext_sign o Sign.hide_space;
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val hide_space_i           = ext_sign o Sign.hide_space_i;
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fun hide_classes b         = curry (hide_space_i b) Sign.classK;
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fun hide_types b           = curry (hide_space_i b) Sign.typeK;
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fun hide_consts b          = curry (hide_space_i b) Sign.constK;
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val add_name               = ext_sign Sign.add_name;
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val copy                   = ext_sign (K Sign.copy) ();
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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 pp tm =
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  (case (Term.term_vars tm, Term.term_tvars tm) of
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    ([], []) => tm
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  | (ts, ixns) => error (Pretty.string_of (Pretty.block (Pretty.breaks
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      (Pretty.str "Illegal schematic variable(s) in term:" ::
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       map (Pretty.term pp) ts @ map (Pretty.typ pp o TVar) ixns)))));
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fun cert_axm sg (name, raw_tm) =
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  let
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    val pp = Sign.pp sg;
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    val (t, T, _) = Sign.certify_term pp 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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    Term.no_dummy_patterns t handle TERM (msg, _) => error msg;
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    assert (T = propT) "Term not of type prop";
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    (name, no_vars pp t)
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  end;
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(*some duplication of code with read_def_cterm*)
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fun read_def_axm (sg, types, sorts) used (name, str) =
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  let
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    val ts = Syntax.read (Sign.is_logtype sg) (Sign.syn_of sg) propT str;
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    val (t, _) = Sign.infer_types (Sign.pp sg) sg types sorts used 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 read_axm sg name_str = read_def_axm (sg, K NONE, K NONE) [] name_str;
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fun inferT_axm sg (name, pre_tm) =
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  let
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    val pp = Sign.pp sg;
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    val (t, _) = Sign.infer_types pp sg (K NONE) (K NONE) [] true ([pre_tm], propT);
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  in (name, no_vars pp 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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local
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fun gen_add_axioms prep_axm raw_axms thy =
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  let
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   299
    val sg = sign_of thy;
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
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   300
    val axms = map (apsnd (Term.compress_term o Logic.varify) o prep_axm sg) raw_axms;
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wenzelm
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   301
  in ext_theory thy I axms [] end;
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paulson
parents:
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   302
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   303
in
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diff changeset
   304
ea4e64b2f25a renamed const_deps to defs;
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parents: 16198
diff changeset
   305
val add_axioms = gen_add_axioms read_axm;
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diff changeset
   306
val add_axioms_i = gen_add_axioms cert_axm;
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diff changeset
   307
ea4e64b2f25a renamed const_deps to defs;
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parents: 16198
diff changeset
   308
end;
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paulson
parents:
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   309
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   310
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   311
(* add oracle **)
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wenzelm
parents: 3806
diff changeset
   312
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   313
fun add_oracle (bname, oracle) thy =
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   314
  ext_theory thy I [] [(bname, (oracle, stamp ()))];
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   315
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   316
3767
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wenzelm
parents: 2979
diff changeset
   317
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   318
(** add constant definitions **)
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diff changeset
   319
9320
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wenzelm
parents: 9282
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   320
(* overloading *)
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78a9bca983ac Tightened up check of types in constant defs.
nipkow
parents: 8897
diff changeset
   321
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   322
datatype overloading = Clean | Implicit | Useless;
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wenzelm
parents: 9282
diff changeset
   323
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parents: 16198
diff changeset
   324
fun overloading sg overloaded declT defT =
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diff changeset
   325
  let
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diff changeset
   326
    val defT' = Term.incr_tvar (maxidx_of_typ declT + 1) (Type.varifyT defT);
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parents: 16198
diff changeset
   327
  in
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wenzelm
parents: 16198
diff changeset
   328
    if Sign.typ_instance sg (declT, defT') then Clean
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wenzelm
parents: 16198
diff changeset
   329
    else if Sign.typ_instance sg (Type.strip_sorts declT, Type.strip_sorts defT') then Useless
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wenzelm
parents: 16198
diff changeset
   330
    else if overloaded then Clean
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wenzelm
parents: 16198
diff changeset
   331
    else Implicit
9280
78a9bca983ac Tightened up check of types in constant defs.
nipkow
parents: 8897
diff changeset
   332
  end;
78a9bca983ac Tightened up check of types in constant defs.
nipkow
parents: 8897
diff changeset
   333
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   334
16291
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wenzelm
parents: 16198
diff changeset
   335
(* dest_def *)
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parents: 16198
diff changeset
   336
ea4e64b2f25a renamed const_deps to defs;
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parents: 16198
diff changeset
   337
fun dest_def pp tm =
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   338
  let
3787
67571f49ebe3 new internal forms: add_classes_i, add_classrel_i, add_defsort_i, add_arities_i
wenzelm
parents: 3767
diff changeset
   339
    fun err msg = raise TERM (msg, [tm]);
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   340
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   341
    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
   342
      handle TERM _ => err "Not a meta-equality (==)";
16291
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wenzelm
parents: 16198
diff changeset
   343
    val (head, args) = Term.strip_comb lhs;
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wenzelm
parents: 16198
diff changeset
   344
    val (c, T) = Term.dest_Const head
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   345
      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
   346
4141
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   347
    fun dest_free (Free (x, _)) = x
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   348
      | dest_free (Const ("TYPE", Type ("itself", [TFree (x, _)]))) = x
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   349
      | dest_free _ = raise Match;
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   350
16291
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wenzelm
parents: 16198
diff changeset
   351
    val show_terms = commas_quote o map (Pretty.string_of_term pp);
4141
b76a49490833 adapted add_trfunsT;
wenzelm
parents: 4124
diff changeset
   352
    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
   353
    val show_tfrees = commas_quote o map fst;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   354
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   355
    val lhs_nofrees = filter (not o can dest_free) args;
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   356
    val lhs_dups = duplicates args;
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   357
    val rhs_extras = term_frees rhs |> fold (remove op =) args;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   358
    val rhs_extrasT = term_tfrees rhs |> fold (remove op =) (typ_tfrees T);
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   359
  in
16291
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wenzelm
parents: 16198
diff changeset
   360
    if not (null lhs_nofrees) then
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   361
      err ("Non-variables as arguments on lhs: " ^ show_terms lhs_nofrees)
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   362
    else if not (null lhs_dups) then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   363
      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
   364
    else if not (null rhs_extras) then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   365
      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
   366
    else if not (null rhs_extrasT) then
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   367
      err ("Extra type variables on rhs: " ^ show_tfrees rhs_extrasT)
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   368
    else if exists_Const (equal (c, T)) rhs then
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   369
      err ("Constant to be defined occurs on rhs")
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   370
    else ((c, T), rhs)
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   371
  end;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   372
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   373
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   374
(* check_def *)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   375
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   376
fun pretty_const pp (c, T) =
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wenzelm
parents: 16198
diff changeset
   377
 [Pretty.str c, Pretty.str " ::", Pretty.brk 1,
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wenzelm
parents: 16198
diff changeset
   378
  Pretty.quote (Pretty.typ pp (Type.freeze_type T))];    (* FIXME zero indexes!? *)
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   379
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   380
(* FIXME move error messages to defs.ML !? *)
9320
803cb9c9d4dd const_deps: unit Graph.T;
wenzelm
parents: 9282
diff changeset
   381
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   382
fun pretty_path pp path = fold_rev (fn (T, c, def) =>
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wenzelm
parents: 16198
diff changeset
   383
  fn [] => [Pretty.block (pretty_const pp (c, T))]
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   384
   | prts => Pretty.block (pretty_const pp (c, T) @
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   385
      [Pretty.brk 1, Pretty.str ("depends via " ^ quote def ^ " on")]) :: prts) path [];
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   386
16313
79b37d5e50b1 A flag DEFS_CHAIN_HISTORY can be used to improve the error message
obua
parents: 16291
diff changeset
   387
fun chain_history_msg s = 
79b37d5e50b1 A flag DEFS_CHAIN_HISTORY can be used to improve the error message
obua
parents: 16291
diff changeset
   388
    if Defs.chain_history () then s^": " 
79b37d5e50b1 A flag DEFS_CHAIN_HISTORY can be used to improve the error message
obua
parents: 16291
diff changeset
   389
    else s^" (set DEFS_CHAIN_HISTORY=ON for full history): "
79b37d5e50b1 A flag DEFS_CHAIN_HISTORY can be used to improve the error message
obua
parents: 16291
diff changeset
   390
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   391
fun defs_circular pp path =
16313
79b37d5e50b1 A flag DEFS_CHAIN_HISTORY can be used to improve the error message
obua
parents: 16291
diff changeset
   392
  Pretty.str (chain_history_msg "Cyclic dependency of definitions") :: pretty_path pp path
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   393
  |> Pretty.chunks |> Pretty.string_of;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   394
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   395
fun defs_infinite_chain pp path =
16313
79b37d5e50b1 A flag DEFS_CHAIN_HISTORY can be used to improve the error message
obua
parents: 16291
diff changeset
   396
  Pretty.str (chain_history_msg "Infinite chain of definitions") :: pretty_path pp path
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   397
  |> Pretty.chunks |> Pretty.string_of;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   398
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   399
fun defs_clash def1 def2 = "Type clash in definitions " ^ quote def1 ^ " and " ^ quote def2;
9320
803cb9c9d4dd const_deps: unit Graph.T;
wenzelm
parents: 9282
diff changeset
   400
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   401
fun defs_final pp const =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   402
  (Pretty.str "Attempt to define final constant" :: Pretty.brk 1 :: pretty_const pp const)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   403
  |> Pretty.block |> Pretty.string_of;
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   404
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   405
(* FIXME move to defs.ML; avoid exceptions *)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   406
fun declare sg c defs =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   407
  let val T = Sign.the_const_type sg c
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   408
  in if_none (try (Defs.declare defs) (c, T)) defs end;
10494
305b37c8d8a3 improved messages;
wenzelm
parents: 10403
diff changeset
   409
16108
cf468b93a02e Implement cycle-free overloading, so that definitions cannot harm consistency any more (except of course via interaction with axioms).
obua
parents: 15747
diff changeset
   410
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   411
fun check_def sg overloaded (bname, tm) defs =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   412
  let
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   413
    val pp = Sign.pp sg;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   414
    val name = Sign.full_name sg bname;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   415
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   416
    fun err msg = error (Pretty.string_of (Pretty.chunks
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   417
     [Pretty.str msg,
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   418
      Pretty.block [Pretty.str ("The error(s) above occurred in definition " ^ quote name ^ ":"),
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   419
        Pretty.fbrk, Pretty.quote (Pretty.term pp tm)]]));
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   420
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   421
    fun show_def const txt =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   422
      [Pretty.block (Pretty.str "Definition of " :: pretty_const pp const), Pretty.str txt]
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   423
      |> Pretty.chunks |> Pretty.string_of;
9320
803cb9c9d4dd const_deps: unit Graph.T;
wenzelm
parents: 9282
diff changeset
   424
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   425
    val ((c, defT), rhs) = dest_def pp tm handle TERM (msg, _) => err msg;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   426
    val rhs_consts = Term.term_constsT rhs;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   427
    val declT = Sign.the_const_type sg c;
16108
cf468b93a02e Implement cycle-free overloading, so that definitions cannot harm consistency any more (except of course via interaction with axioms).
obua
parents: 15747
diff changeset
   428
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   429
    val _ =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   430
      (case overloading sg overloaded declT defT of
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   431
        Clean => ()
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   432
      | Implicit => warning (show_def (c, defT)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   433
          ("is strictly less general than the declared type (see " ^ quote name ^ ")"))
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   434
      | Useless => err (Library.setmp show_sorts true (show_def (c, defT))
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   435
          "imposes additional sort constraints on the declared type of the constant"));
16108
cf468b93a02e Implement cycle-free overloading, so that definitions cannot harm consistency any more (except of course via interaction with axioms).
obua
parents: 15747
diff changeset
   436
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   437
    val decl_defs = defs |> declare sg c |> fold (declare sg) (map #1 rhs_consts);
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   438
  in
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   439
    Defs.define decl_defs (c, defT) name rhs_consts
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   440
      handle Defs.DEFS msg => err ("DEFS: " ^ msg)   (* FIXME sys_error!? *)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   441
        | Defs.CIRCULAR path => err (defs_circular pp path)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   442
        | Defs.INFINITE_CHAIN path => err (defs_infinite_chain pp path)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   443
        | Defs.CLASH (_, def1, def2) => err (defs_clash def1 def2)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   444
        | Defs.FINAL const => err (defs_final pp const)
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   445
  end;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   446
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   447
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   448
(* add_defs *)
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   449
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   450
local
9320
803cb9c9d4dd const_deps: unit Graph.T;
wenzelm
parents: 9282
diff changeset
   451
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   452
fun gen_add_defs prep_axm overloaded raw_axms thy =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   453
  let
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   454
    val Theory {sign, defs, axioms, oracles, parents, ancestors} = thy;
9320
803cb9c9d4dd const_deps: unit Graph.T;
wenzelm
parents: 9282
diff changeset
   455
    val axms = map (prep_axm sign) raw_axms;
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   456
    val defs' = fold (check_def sign overloaded) axms defs;
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   457
  in
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   458
    make_theory sign defs' axioms oracles parents ancestors
9320
803cb9c9d4dd const_deps: unit Graph.T;
wenzelm
parents: 9282
diff changeset
   459
    |> add_axioms_i axms
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   460
  end;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   461
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   462
in
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   463
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   464
val add_defs_i = gen_add_defs cert_axm;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   465
val add_defs = gen_add_defs read_axm;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   466
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   467
end;
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   468
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   469
14223
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   470
(* add_finals *)
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   471
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   472
local
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   473
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   474
fun gen_add_finals prep_term overloaded raw_terms thy =
14223
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   475
  let
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   476
    val Theory {sign, defs, axioms, oracles, parents, ancestors} = thy;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   477
    fun finalize tm finals =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   478
      let
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   479
        fun err msg = raise TERM (msg, [tm]);    (* FIXME error!? *)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   480
        val (c, defT) =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   481
          (case tm of Const x => x
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   482
          | Free _ => err "Attempt to finalize variable (or undeclared constant)"
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   483
          | _ => err "Attempt to finalize non-constant term");
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   484
        val declT = Sign.the_const_type sign c
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   485
          handle TYPE (msg, _, _) => err msg;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   486
        val _ =
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   487
          (case overloading sign overloaded declT defT of
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   488
            Clean => ()
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   489
          | Implcit => warning ("Finalizing " ^ quote c ^
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   490
              " at a strictly less general type than declared")
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   491
          | Useless => err "Sort constraints stronger than declared");
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   492
      in
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   493
        Defs.finalize (if_none (try (Defs.declare finals) (c, declT)) finals) (c, defT)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   494
      end;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   495
    val defs' = fold finalize (map (prep_term sign) raw_terms) defs;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   496
  in make_theory sign defs' axioms oracles parents ancestors end;
14223
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   497
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   498
fun read_term sg = Sign.simple_read_term sg TypeInfer.logicT;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   499
fun cert_term sg = #1 o Sign.certify_term (Sign.pp sg) sg;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   500
14223
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   501
in
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   502
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   503
val add_finals = gen_add_finals read_term;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   504
val add_finals_i = gen_add_finals cert_term;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   505
14223
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   506
end;
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   507
0ee05eef881b Added support for making constants final, that is, ensuring that no
skalberg
parents: 14204
diff changeset
   508
3878
0258594baaa9 remove merge_theories;
wenzelm
parents: 3865
diff changeset
   509
3865
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   510
(** additional theory data **)
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   511
4996
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   512
val init_data = curry (ext_sign Sign.init_data);
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   513
fun print_data kind = Sign.print_data kind o sign_of;
951575080635 use Object.T and Object.kind;
wenzelm
parents: 4974
diff changeset
   514
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
   515
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
   516
0035d1f97096 added init_data, get_data, put_data;
wenzelm
parents: 3814
diff changeset
   517
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   518
6661
24185f54f177 prep_ext exported (again);
wenzelm
parents: 6573
diff changeset
   519
(** merge theories **)          (*exception ERROR*)
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   520
3878
0258594baaa9 remove merge_theories;
wenzelm
parents: 3865
diff changeset
   521
(*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
   522
fun prep_ext_merge thys =
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   523
  let
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   524
    val sign' = Sign.prep_ext_merge (map sign_of thys);
3814
b0dc68aa1b6a improved oracles: named, many per theory;
wenzelm
parents: 3806
diff changeset
   525
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   526
    val defss = map (#defs o rep_theory) thys;
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   527
    val defs' = foldl (uncurry Defs.merge) (hd defss) (tl defss)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   528
      handle Defs.CIRCULAR namess => error (defs_circular (Sign.pp sign') namess)
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   529
        | Defs.INFINITE_CHAIN namess => error (defs_infinite_chain (Sign.pp sign') namess);
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   530
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   531
    val axioms' = NameSpace.empty_table;
9282
0181ac100520 Defs are now checked for circularity (if not overloaded).
nipkow
parents: 9280
diff changeset
   532
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   533
    val oras_spaces = map (#1 o #oracles o rep_theory) thys;
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   534
    val oras_space' = Library.foldl NameSpace.merge (hd oras_spaces, tl oras_spaces);
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   535
    fun eq_ora ((_, (_, s1: stamp)), (_, (_, s2))) = s1 = s2;
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   536
    val oras' =
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   537
      Symtab.make (gen_distinct eq_ora
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   538
        (List.concat (map (Symtab.dest o #2 o #oracles o rep_theory) thys)))
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   539
      handle Symtab.DUPS names => err_dup_oras names;
16339
b02b6da609c3 axioms and oracles: NameSpace.table;
wenzelm
parents: 16313
diff changeset
   540
    val oracles' = (oras_space', oras');
4019
f9bfb914805a added ancestors;
wenzelm
parents: 3996
diff changeset
   541
15703
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   542
    val parents' = gen_distinct eq_thy thys;
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   543
    val ancestors' =
727ef1b8b3ee *** empty log message ***
wenzelm
parents: 15570
diff changeset
   544
      gen_distinct eq_thy (parents' @ List.concat (map ancestors_of thys));
16291
ea4e64b2f25a renamed const_deps to defs;
wenzelm
parents: 16198
diff changeset
   545
  in make_theory sign' defs' axioms' oracles' parents' ancestors' end;
1526
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   546
3885
dccac762b0be added merge_theories (new name arg);
wenzelm
parents: 3878
diff changeset
   547
1526
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   548
end;
6be6ea6f8b5d New file of just the theory primitives
paulson
parents:
diff changeset
   549
3767
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   550
structure BasicTheory: BASIC_THEORY = Theory;
e2bb53d8dd26 moved theory stuff (add_defs etc.) here from drule.ML;
wenzelm
parents: 2979
diff changeset
   551
open BasicTheory;