src/Pure/Isar/locale.ML
author wenzelm
Tue Jul 16 18:41:00 2002 +0200 (2002-07-16)
changeset 13375 7cbf2dea46d0
parent 13336 1bd21b082466
child 13394 b39347206719
permissions -rw-r--r--
proper predicate definitions of locale body;
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(*  Title:      Pure/Isar/locale.ML
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    ID:         $Id$
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    Author:     Markus Wenzel, LMU/TU München
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    License:    GPL (GNU GENERAL PUBLIC LICENSE)
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Locales -- Isar proof contexts as meta-level predicates, with local
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syntax and implicit structures.
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Draws some basic ideas from Florian Kammüller's original version of
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locales, but uses the richer infrastructure of Isar instead of the raw
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meta-logic.  Furthermore, we provide structured import of contexts
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(with merge and rename operations), well as type-inference of the
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signature parts, and predicate definitions of the specification text.
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*)
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signature LOCALE =
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sig
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  type context
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  datatype ('typ, 'term, 'fact, 'att) elem =
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    Fixes of (string * 'typ option * mixfix option) list |
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    Assumes of ((string * 'att list) * ('term * ('term list * 'term list)) list) list |
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    Defines of ((string * 'att list) * ('term * 'term list)) list |
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    Notes of ((string * 'att list) * ('fact * 'att list) list) list
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  datatype expr =
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    Locale of string |
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    Rename of expr * string option list |
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    Merge of expr list
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  val empty: expr
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  datatype ('typ, 'term, 'fact, 'att) elem_expr =
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    Elem of ('typ, 'term, 'fact, 'att) elem | Expr of expr
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  type 'att element
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  type 'att element_i
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  type locale
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  val intern: Sign.sg -> xstring -> string
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  val cond_extern: Sign.sg -> string -> xstring
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  val the_locale: theory -> string -> locale
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  val attribute: ('att -> context attribute) -> ('typ, 'term, 'thm, 'att) elem_expr
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    -> ('typ, 'term, 'thm, context attribute) elem_expr
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  val locale_facts: theory -> xstring -> thm list
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  val locale_facts_i: theory -> string -> thm list
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  val read_context_statement: xstring option -> context attribute element list ->
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    (string * (string list * string list)) list list -> context ->
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    string option * context * context * (term * (term list * term list)) list list
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  val cert_context_statement: string option -> context attribute element_i list ->
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    (term * (term list * term list)) list list -> context ->
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    string option * context * context * (term * (term list * term list)) list list
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  val print_locales: theory -> unit
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  val print_locale: theory -> expr -> context attribute element list -> unit
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  val add_locale: bstring option option -> bstring
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    -> expr -> context attribute element list -> theory -> theory
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  val add_locale_i: bstring option option -> bstring
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    -> expr -> context attribute element_i list -> theory -> theory
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  val smart_have_thmss: string -> (string * 'a) Library.option ->
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    ((bstring * theory attribute list) * (thm list * theory attribute list) list) list ->
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    theory -> theory * (bstring * thm list) list
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  val have_thmss: string -> xstring ->
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    ((bstring * context attribute list) * (xstring * context attribute list) list) list ->
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    theory -> theory * (bstring * thm list) list
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  val have_thmss_i: string -> string ->
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    ((bstring * context attribute list) * (thm list * context attribute list) list) list ->
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    theory -> theory * (bstring * thm list) list
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  val add_thmss: string -> ((string * thm list) * context attribute list) list ->
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    theory * context -> (theory * context) * (string * thm list) list
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  val setup: (theory -> theory) list
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end;
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structure Locale: LOCALE =
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struct
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(** locale elements and expressions **)
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type context = ProofContext.context;
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datatype ('typ, 'term, 'fact, 'att) elem =
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  Fixes of (string * 'typ option * mixfix option) list |
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  Assumes of ((string * 'att list) * ('term * ('term list * 'term list)) list) list |
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  Defines of ((string * 'att list) * ('term * 'term list)) list |
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  Notes of ((string * 'att list) * ('fact * 'att list) list) list;
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datatype expr =
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  Locale of string |
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  Rename of expr * string option list |
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  Merge of expr list;
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val empty = Merge [];
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datatype ('typ, 'term, 'fact, 'att) elem_expr =
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  Elem of ('typ, 'term, 'fact, 'att) elem | Expr of expr;
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type 'att element = (string, string, string, 'att) elem_expr;
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type 'att element_i = (typ, term, thm list, 'att) elem_expr;
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type locale =
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 {import: expr,                                                         (*dynamic import*)
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  elems: ((typ, term, thm list, context attribute) elem * stamp) list,  (*static content*)
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  params: (string * typ option) list * string list};                    (*all vs. local params*)
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fun make_locale import elems params =
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 {import = import, elems = elems, params = params}: locale;
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(** theory data **)
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structure LocalesArgs =
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struct
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  val name = "Isar/locales";
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  type T = NameSpace.T * locale Symtab.table;
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  val empty = (NameSpace.empty, Symtab.empty);
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  val copy = I;
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  val prep_ext = I;
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  (*joining of locale elements: only facts may be added later!*)
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  fun join ({import, elems, params}: locale, {elems = elems', ...}: locale) =
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    Some (make_locale import (gen_merge_lists eq_snd elems elems') params);
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  fun merge ((space1, locs1), (space2, locs2)) =
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    (NameSpace.merge (space1, space2), Symtab.join join (locs1, locs2));
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  fun print _ (space, locs) =
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    Pretty.strs ("locales:" :: map (NameSpace.cond_extern space o #1) (Symtab.dest locs))
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    |> Pretty.writeln;
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end;
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structure LocalesData = TheoryDataFun(LocalesArgs);
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val print_locales = LocalesData.print;
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val intern = NameSpace.intern o #1 o LocalesData.get_sg;
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val cond_extern = NameSpace.cond_extern o #1 o LocalesData.get_sg;
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(* access locales *)
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fun declare_locale name =
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  LocalesData.map (apfst (fn space => (NameSpace.extend (space, [name]))));
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fun put_locale name loc = LocalesData.map (apsnd (fn locs => Symtab.update ((name, loc), locs)));
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fun get_locale thy name = Symtab.lookup (#2 (LocalesData.get thy), name);
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fun the_locale thy name =
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  (case get_locale thy name of
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    Some loc => loc
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  | None => error ("Unknown locale " ^ quote name));
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(* diagnostics *)
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fun err_in_locale ctxt msg ids =
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  let
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    val sign = ProofContext.sign_of ctxt;
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    fun prt_id (name, parms) =
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      [Pretty.block (Pretty.breaks (map Pretty.str (cond_extern sign name :: parms)))];
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    val prt_ids = flat (separate [Pretty.str " +", Pretty.brk 1] (map prt_id ids));
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    val err_msg =
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      if forall (equal "" o #1) ids then msg
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      else msg ^ "\n" ^ Pretty.string_of (Pretty.block
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        (Pretty.str "The error(s) above occurred in locale:" :: Pretty.brk 1 :: prt_ids));
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  in raise ProofContext.CONTEXT (err_msg, ctxt) end;
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(** primitives **)
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(* renaming *)
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fun rename ren x = if_none (assoc_string (ren, x)) x;
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fun rename_term ren (Free (x, T)) = Free (rename ren x, T)
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  | rename_term ren (t $ u) = rename_term ren t $ rename_term ren u
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  | rename_term ren (Abs (x, T, t)) = Abs (x, T, rename_term ren t)
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  | rename_term _ a = a;
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fun rename_thm ren th =
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  let
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    val {sign, hyps, prop, maxidx, ...} = Thm.rep_thm th;
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    val cert = Thm.cterm_of sign;
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    val (xs, Ts) = Library.split_list (foldl Term.add_frees ([], prop :: hyps));
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    val xs' = map (rename ren) xs;
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    fun cert_frees names = map (cert o Free) (names ~~ Ts);
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    fun cert_vars names = map (cert o Var o apfst (rpair (maxidx + 1))) (names ~~ Ts);
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  in
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    if xs = xs' then th
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    else
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      th
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      |> Drule.implies_intr_list (map cert hyps)
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      |> Drule.forall_intr_list (cert_frees xs)
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      |> Drule.forall_elim_list (cert_vars xs)
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      |> Thm.instantiate ([], cert_vars xs ~~ cert_frees xs')
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      |> (fn th' => Drule.implies_elim_list th' (map (Thm.assume o cert o rename_term ren) hyps))
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  end;
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fun rename_elem ren (Fixes fixes) = Fixes (fixes |> map (fn (x, T, mx) =>
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      let val x' = rename ren x in
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        if x = x' then (x, T, mx)
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        else (x', T, if mx = None then mx else Some Syntax.NoSyn)    (*drop syntax*)
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      end))
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  | rename_elem ren (Assumes asms) = Assumes (map (apsnd (map (fn (t, (ps, qs)) =>
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      (rename_term ren t, (map (rename_term ren) ps, map (rename_term ren) qs))))) asms)
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  | rename_elem ren (Defines defs) = Defines (map (apsnd (fn (t, ps) =>
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      (rename_term ren t, map (rename_term ren) ps))) defs)
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  | rename_elem ren (Notes facts) = Notes (map (apsnd (map (apfst (map (rename_thm ren))))) facts);
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fun rename_facts prfx elem =
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  let
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    fun qualify (arg as ((name, atts), x)) =
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      if prfx = "" orelse name = "" orelse NameSpace.is_qualified name then arg
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      else ((NameSpace.pack [prfx, name], atts), x);
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  in
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    (case elem of
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      Fixes fixes => Fixes fixes
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    | Assumes asms => Assumes (map qualify asms)
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    | Defines defs => Defines (map qualify defs)
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    | Notes facts => Notes (map qualify facts))
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  end;
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(* type instantiation *)
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fun inst_type [] T = T
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  | inst_type env T = Term.map_type_tfree (fn v => if_none (assoc (env, v)) (TFree v)) T;
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fun inst_term [] t = t
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  | inst_term env t = Term.map_term_types (inst_type env) t;
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fun inst_thm _ [] th = th
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  | inst_thm ctxt env th =
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      let
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        val sign = ProofContext.sign_of ctxt;
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        val cert = Thm.cterm_of sign;
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        val certT = Thm.ctyp_of sign;
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        val {hyps, prop, maxidx, ...} = Thm.rep_thm th;
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        val tfrees = foldr Term.add_term_tfree_names (prop :: hyps, []);
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        val env' = filter (fn ((a, _), _) => a mem_string tfrees) env;
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      in
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        if null env' then th
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        else
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          th
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          |> Drule.implies_intr_list (map cert hyps)
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          |> Drule.tvars_intr_list (map (#1 o #1) env')
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          |> (fn (th', al) => th' |>
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            Thm.instantiate ((map (fn ((a, _), T) => (the (assoc (al, a)), certT T)) env'), []))
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          |> (fn th'' => Drule.implies_elim_list th''
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              (map (Thm.assume o cert o inst_term env') hyps))
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      end;
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fun inst_elem _ env (Fixes fixes) =
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      Fixes (map (fn (x, T, mx) => (x, apsome (inst_type env) T, mx)) fixes)
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  | inst_elem _ env (Assumes asms) = Assumes (map (apsnd (map (fn (t, (ps, qs)) =>
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      (inst_term env t, (map (inst_term env) ps, map (inst_term env) qs))))) asms)
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  | inst_elem _ env (Defines defs) = Defines (map (apsnd (fn (t, ps) =>
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      (inst_term env t, map (inst_term env) ps))) defs)
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  | inst_elem ctxt env (Notes facts) =
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      Notes (map (apsnd (map (apfst (map (inst_thm ctxt env))))) facts);
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(** structured contexts: rename + merge + implicit type instantiation **)
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(* parameter types *)
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fun frozen_tvars ctxt Ts =
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  let
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    val tvars = rev (foldl Term.add_tvarsT ([], Ts));
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    val tfrees = map TFree
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      (Term.invent_type_names (ProofContext.used_types ctxt) (length tvars) ~~ map #2 tvars);
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  in map #1 tvars ~~ tfrees end;
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fun unify_frozen ctxt maxidx Ts Us =
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  let
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    val tsig = Sign.tsig_of (ProofContext.sign_of ctxt);
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    fun unify (env, (Some T, Some U)) = (Type.unify tsig env (U, T)
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          handle Type.TUNIFY => raise TYPE ("unify_frozen: failed to unify types", [U, T], []))
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      | unify (env, _) = env;
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    fun paramify (i, None) = (i, None)
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      | paramify (i, Some T) = apsnd Some (Type.paramify_dummies (i, T));
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    val (maxidx', Ts') = foldl_map paramify (maxidx, Ts);
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    val (maxidx'', Us') = foldl_map paramify (maxidx', Us);
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    val (unifier, _) = foldl unify ((Vartab.empty, maxidx''), Ts' ~~ Us');
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    val Vs = map (apsome (Envir.norm_type unifier)) Us';
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    val unifier' = Vartab.extend (unifier, frozen_tvars ctxt (mapfilter I Vs));
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  in map (apsome (Envir.norm_type unifier')) Vs end;
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fun params_of elemss = gen_distinct eq_fst (flat (map (snd o fst) elemss));
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fun param_types ps = mapfilter (fn (_, None) => None | (x, Some T) => Some (x, T)) ps;
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(* flatten expressions *)
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local
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fun unique_parms ctxt elemss =
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  let
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    val param_decls =
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      flat (map (fn ((name, (ps, qs)), _) => map (rpair (name, ps)) qs) elemss)
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      |> Symtab.make_multi |> Symtab.dest;
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  in
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    (case find_first (fn (_, ids) => length ids > 1) param_decls of
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      Some (q, ids) => err_in_locale ctxt ("Multiple declaration of parameter " ^ quote q)
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          (map (apsnd (map fst)) ids)
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    | None => map (apfst (apsnd #1)) elemss)
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  end;
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fun unify_parms ctxt fixed_parms raw_parmss =
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  let
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    val tsig = Sign.tsig_of (ProofContext.sign_of ctxt);
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    val maxidx = length raw_parmss;
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    val idx_parmss = (0 upto maxidx - 1) ~~ raw_parmss;
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    fun varify i = Term.map_type_tfree (fn (a, S) => TVar ((a, i), S));
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    fun varify_parms (i, ps) = map (apsnd (varify i)) (param_types ps);
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    val parms = fixed_parms @ flat (map varify_parms idx_parmss);
wenzelm@12502
   314
wenzelm@12529
   315
    fun unify T ((env, maxidx), U) = Type.unify tsig (env, maxidx) (U, T)
wenzelm@12529
   316
      handle Type.TUNIFY => raise TYPE ("unify_parms: failed to unify types", [U, T], []);
wenzelm@12502
   317
    fun unify_list (envir, T :: Us) = foldl (unify T) (envir, Us)
wenzelm@12502
   318
      | unify_list (envir, []) = envir;
wenzelm@12502
   319
    val (unifier, _) = foldl unify_list
wenzelm@12502
   320
      ((Vartab.empty, maxidx), map #2 (Symtab.dest (Symtab.make_multi parms)));
wenzelm@12502
   321
wenzelm@12502
   322
    val parms' = map (apsnd (Envir.norm_type unifier)) (gen_distinct eq_fst parms);
wenzelm@12502
   323
    val unifier' = Vartab.extend (unifier, frozen_tvars ctxt (map #2 parms'));
wenzelm@12502
   324
wenzelm@12502
   325
    fun inst_parms (i, ps) =
wenzelm@12502
   326
      foldr Term.add_typ_tfrees (mapfilter snd ps, [])
wenzelm@12502
   327
      |> mapfilter (fn (a, S) =>
wenzelm@12502
   328
          let val T = Envir.norm_type unifier' (TVar ((a, i), S))
wenzelm@12502
   329
          in if T = TFree (a, S) then None else Some ((a, S), T) end);
wenzelm@12502
   330
  in map inst_parms idx_parmss end;
wenzelm@12502
   331
wenzelm@12529
   332
in
wenzelm@12502
   333
wenzelm@12529
   334
fun unify_elemss _ _ [] = []
wenzelm@12529
   335
  | unify_elemss _ [] [elems] = [elems]
wenzelm@12529
   336
  | unify_elemss ctxt fixed_parms elemss =
wenzelm@12502
   337
      let
wenzelm@12529
   338
        val envs = unify_parms ctxt fixed_parms (map (#2 o #1) elemss);
wenzelm@13308
   339
        fun inst (((name, ps), elems), env) =
wenzelm@13308
   340
          ((name, map (apsnd (apsome (inst_type env))) ps), (map (inst_elem ctxt env) elems));
wenzelm@12839
   341
      in map inst (elemss ~~ envs) end;
wenzelm@12502
   342
wenzelm@12575
   343
fun flatten_expr ctxt (prev_idents, expr) =
wenzelm@12014
   344
  let
wenzelm@12014
   345
    val thy = ProofContext.theory_of ctxt;
wenzelm@12263
   346
wenzelm@12289
   347
    fun renaming (Some x :: xs) (y :: ys) = (y, x) :: renaming xs ys
wenzelm@12289
   348
      | renaming (None :: xs) (y :: ys) = renaming xs ys
wenzelm@12273
   349
      | renaming [] _ = []
wenzelm@12289
   350
      | renaming xs [] = raise ERROR_MESSAGE ("Too many arguments in renaming: " ^
wenzelm@12289
   351
          commas (map (fn None => "_" | Some x => quote x) xs));
wenzelm@12289
   352
wenzelm@12289
   353
    fun rename_parms ren (name, ps) =
wenzelm@12289
   354
      let val ps' = map (rename ren) ps in
wenzelm@12289
   355
        (case duplicates ps' of [] => (name, ps')
wenzelm@12289
   356
        | dups => err_in_locale ctxt ("Duplicate parameters: " ^ commas_quote dups) [(name, ps')])
wenzelm@12289
   357
      end;
wenzelm@12263
   358
wenzelm@12273
   359
    fun identify ((ids, parms), Locale name) =
wenzelm@12289
   360
          let
wenzelm@12289
   361
            val {import, params, ...} = the_locale thy name;
wenzelm@12289
   362
            val ps = map #1 (#1 params);
wenzelm@12289
   363
          in
wenzelm@12273
   364
            if (name, ps) mem ids then (ids, parms)
wenzelm@12277
   365
            else
wenzelm@12289
   366
              let val (ids', parms') = identify ((ids, parms), import);  (*acyclic dependencies!*)
wenzelm@12289
   367
              in (ids' @ [(name, ps)], merge_lists parms' ps) end
wenzelm@12273
   368
          end
wenzelm@12273
   369
      | identify ((ids, parms), Rename (e, xs)) =
wenzelm@12273
   370
          let
wenzelm@12273
   371
            val (ids', parms') = identify (([], []), e);
wenzelm@12839
   372
            val ren = renaming xs parms'
wenzelm@12839
   373
              handle ERROR_MESSAGE msg => err_in_locale ctxt msg ids';
wenzelm@12289
   374
            val ids'' = distinct (map (rename_parms ren) ids');
wenzelm@12289
   375
            val parms'' = distinct (flat (map #2 ids''));
wenzelm@12289
   376
          in (merge_lists ids ids'', merge_lists parms parms'') end
wenzelm@12273
   377
      | identify (arg, Merge es) = foldl identify (arg, es);
wenzelm@12014
   378
wenzelm@12307
   379
    fun eval (name, xs) =
wenzelm@12273
   380
      let
wenzelm@13308
   381
        val {params = (ps, qs), elems, ...} = the_locale thy name;
wenzelm@12307
   382
        val ren = filter_out (op =) (map #1 ps ~~ xs);
wenzelm@13308
   383
        val (params', elems') =
wenzelm@13308
   384
          if null ren then ((ps, qs), map #1 elems)
wenzelm@12502
   385
          else ((map (apfst (rename ren)) ps, map (rename ren) qs),
wenzelm@13308
   386
            map (rename_elem ren o #1) elems);
wenzelm@13375
   387
        val elems'' = map (rename_facts (space_implode "_" xs)) elems';
wenzelm@13308
   388
      in ((name, params'), elems'') end;
wenzelm@12307
   389
wenzelm@12575
   390
    val idents = gen_rems (op =) (#1 (identify (([], []), expr)), prev_idents);
wenzelm@12575
   391
    val raw_elemss = unique_parms ctxt (map eval idents);
wenzelm@12529
   392
    val elemss = unify_elemss ctxt [] raw_elemss;
wenzelm@12575
   393
  in (prev_idents @ idents, elemss) end;
wenzelm@12046
   394
wenzelm@12510
   395
end;
wenzelm@12510
   396
wenzelm@12070
   397
wenzelm@12529
   398
(* activate elements *)
wenzelm@12273
   399
wenzelm@12510
   400
local
wenzelm@12510
   401
wenzelm@13375
   402
fun activate_elem _ (ctxt, Fixes fixes) = (ctxt |> ProofContext.add_fixes fixes, [])
wenzelm@13375
   403
  | activate_elem _ (ctxt, Assumes asms) =
wenzelm@12834
   404
      ctxt |> ProofContext.fix_frees (flat (map (map #1 o #2) asms))
wenzelm@12839
   405
      |> ProofContext.assume_i ProofContext.export_assume asms
wenzelm@13375
   406
      |> apsnd (map (rpair false))
wenzelm@13375
   407
  | activate_elem _ (ctxt, Defines defs) =
wenzelm@12834
   408
      ctxt |> ProofContext.assume_i ProofContext.export_def
wenzelm@13375
   409
        (defs |> map (fn ((name, atts), (t, ps)) =>
wenzelm@12834
   410
          let val (c, t') = ProofContext.cert_def ctxt t
wenzelm@13375
   411
          in ((if name = "" then Thm.def_name c else name, atts), [(t', (ps, []))]) end))
wenzelm@13375
   412
        |> apsnd (map (rpair false))
wenzelm@13375
   413
  | activate_elem b (ctxt, Notes facts) =
wenzelm@13375
   414
      ctxt |> ProofContext.have_thmss_i facts |> apsnd (map (rpair b));
wenzelm@12263
   415
wenzelm@12834
   416
fun activate_elems ((name, ps), elems) = ProofContext.qualified_result (fn ctxt =>
wenzelm@13375
   417
  foldl_map (activate_elem (name = "")) (ctxt, elems) handle ProofContext.CONTEXT (msg, ctxt) =>
wenzelm@12529
   418
    err_in_locale ctxt msg [(name, map fst ps)]);
wenzelm@12502
   419
wenzelm@12834
   420
fun activate_elemss prep_facts = foldl_map (fn (ctxt, ((name, ps), raw_elems)) =>
wenzelm@12834
   421
  let
wenzelm@12834
   422
    val elems = map (prep_facts ctxt) raw_elems;
wenzelm@13375
   423
    val (ctxt', facts) = apsnd flat (activate_elems ((name, ps), elems) ctxt);
wenzelm@13336
   424
  in (ctxt', (((name, ps), elems), facts)) end);
wenzelm@12834
   425
wenzelm@12546
   426
in
wenzelm@12546
   427
wenzelm@12834
   428
fun activate_facts prep_facts ctxt_elemss =
wenzelm@12834
   429
  let val (ctxt', (elemss', factss)) = apsnd split_list (activate_elemss prep_facts ctxt_elemss)
wenzelm@12834
   430
  in (ctxt', (elemss', flat factss)) end;
wenzelm@12546
   431
wenzelm@12510
   432
end;
wenzelm@12510
   433
wenzelm@12307
   434
wenzelm@12529
   435
wenzelm@12529
   436
(** prepare context elements **)
wenzelm@12529
   437
wenzelm@12529
   438
(* expressions *)
wenzelm@12529
   439
wenzelm@12529
   440
fun intern_expr sg (Locale xname) = Locale (intern sg xname)
wenzelm@12529
   441
  | intern_expr sg (Merge exprs) = Merge (map (intern_expr sg) exprs)
wenzelm@12529
   442
  | intern_expr sg (Rename (expr, xs)) = Rename (intern_expr sg expr, xs);
wenzelm@12529
   443
wenzelm@12529
   444
wenzelm@12546
   445
(* attributes *)
wenzelm@12546
   446
wenzelm@12546
   447
local fun read_att attrib (x, srcs) = (x, map attrib srcs) in
wenzelm@12546
   448
wenzelm@12546
   449
fun attribute _ (Elem (Fixes fixes)) = Elem (Fixes fixes)
wenzelm@12546
   450
  | attribute attrib (Elem (Assumes asms)) = Elem (Assumes (map (apfst (read_att attrib)) asms))
wenzelm@12546
   451
  | attribute attrib (Elem (Defines defs)) = Elem (Defines (map (apfst (read_att attrib)) defs))
wenzelm@12546
   452
  | attribute attrib (Elem (Notes facts)) =
wenzelm@12546
   453
      Elem (Notes (map (apfst (read_att attrib) o apsnd (map (read_att attrib))) facts))
wenzelm@12546
   454
  | attribute _ (Expr expr) = Expr expr;
wenzelm@12546
   455
wenzelm@12546
   456
end;
wenzelm@12546
   457
wenzelm@12546
   458
wenzelm@12529
   459
(* parameters *)
wenzelm@12502
   460
wenzelm@12502
   461
local
wenzelm@12502
   462
wenzelm@12529
   463
fun prep_fixes prep_vars ctxt fixes =
wenzelm@12529
   464
  let val vars = snd (foldl_map prep_vars (ctxt, map (fn (x, T, _) => ([x], T)) fixes))
wenzelm@12529
   465
  in map (fn (([x'], T'), (_, _, mx)) => (x', T', mx)) (vars ~~ fixes) end;
wenzelm@12529
   466
wenzelm@12529
   467
in
wenzelm@12529
   468
wenzelm@12529
   469
fun read_fixes x = prep_fixes ProofContext.read_vars x;
wenzelm@12529
   470
fun cert_fixes x = prep_fixes ProofContext.cert_vars x;
wenzelm@12529
   471
wenzelm@12529
   472
end;
wenzelm@12529
   473
wenzelm@12529
   474
wenzelm@12529
   475
(* propositions and bindings *)
wenzelm@12529
   476
wenzelm@12529
   477
datatype ('a, 'b) int_ext = Int of 'a | Ext of 'b;
wenzelm@12529
   478
wenzelm@12529
   479
local
wenzelm@12529
   480
wenzelm@12839
   481
local
wenzelm@12839
   482
wenzelm@12727
   483
fun declare_int_elem (ctxt, Fixes fixes) =
wenzelm@12575
   484
      (ctxt |> ProofContext.add_fixes (map (fn (x, T, mx) =>
wenzelm@12727
   485
        (x, apsome (Term.map_type_tfree (Type.param 0)) T, mx)) fixes), [])
wenzelm@12727
   486
  | declare_int_elem (ctxt, _) = (ctxt, []);
wenzelm@12529
   487
wenzelm@12529
   488
fun declare_ext_elem prep_fixes (ctxt, Fixes fixes) =
wenzelm@12575
   489
      (ctxt |> ProofContext.add_fixes (prep_fixes ctxt fixes), [])
wenzelm@12529
   490
  | declare_ext_elem _ (ctxt, Assumes asms) = (ctxt, map #2 asms)
wenzelm@12529
   491
  | declare_ext_elem _ (ctxt, Defines defs) = (ctxt, map (fn (_, (t, ps)) => [(t, (ps, []))]) defs)
wenzelm@12529
   492
  | declare_ext_elem _ (ctxt, Notes facts) = (ctxt, []);
wenzelm@12529
   493
wenzelm@12727
   494
fun declare_elems prep_fixes (ctxt, ((name, ps), elems)) =
wenzelm@12529
   495
  let val (ctxt', propps) =
wenzelm@12529
   496
    (case elems of
wenzelm@13308
   497
      Int es => foldl_map declare_int_elem (ctxt, es)
wenzelm@12546
   498
    | Ext e => foldl_map (declare_ext_elem prep_fixes) (ctxt, [e]))
wenzelm@12529
   499
    handle ProofContext.CONTEXT (msg, ctxt) => err_in_locale ctxt msg [(name, map fst ps)]
wenzelm@12727
   500
  in (ctxt', propps) end;
wenzelm@12727
   501
wenzelm@12839
   502
in
wenzelm@12839
   503
wenzelm@12727
   504
fun declare_elemss prep_fixes fixed_params raw_elemss ctxt =
wenzelm@12727
   505
  let
wenzelm@12727
   506
    val int_elemss =
wenzelm@12727
   507
      raw_elemss
wenzelm@12727
   508
      |> mapfilter (fn (id, Int es) => Some (id, es) | _ => None)
wenzelm@12727
   509
      |> unify_elemss ctxt fixed_params;
wenzelm@12727
   510
    val (_, raw_elemss') =
wenzelm@12727
   511
      foldl_map (fn ((_, es) :: elemss, (id, Int _)) => (elemss, (id, Int es)) | x => x)
wenzelm@12727
   512
        (int_elemss, raw_elemss);
wenzelm@12727
   513
  in foldl_map (declare_elems prep_fixes) (ctxt, raw_elemss') end;
wenzelm@12529
   514
wenzelm@12839
   515
end;
wenzelm@12529
   516
wenzelm@12839
   517
local
wenzelm@12839
   518
wenzelm@12839
   519
val norm_term = Envir.beta_norm oo Term.subst_atomic;
wenzelm@12839
   520
wenzelm@13336
   521
fun abstract_term eq =    (*assumes well-formedness according to ProofContext.cert_def*)
wenzelm@12839
   522
  let
wenzelm@12839
   523
    val body = Term.strip_all_body eq;
wenzelm@12839
   524
    val vars = map Free (Term.rename_wrt_term body (Term.strip_all_vars eq));
wenzelm@12839
   525
    val (lhs, rhs) = Logic.dest_equals (Term.subst_bounds (vars, body));
wenzelm@12839
   526
    val (f, xs) = Term.strip_comb lhs;
wenzelm@13336
   527
    val eq' = Term.list_abs_free (map Term.dest_Free xs, rhs);
wenzelm@13336
   528
  in (Term.dest_Free f, eq') end;
wenzelm@13336
   529
wenzelm@13336
   530
fun abstract_thm sign eq =
wenzelm@13336
   531
  Thm.assume (Thm.cterm_of sign eq) |> Drule.gen_all |> Drule.abs_def;
wenzelm@12502
   532
wenzelm@13336
   533
fun bind_def ctxt (name, ps) ((xs, env, ths), eq) =
wenzelm@12839
   534
  let
wenzelm@13336
   535
    val ((y, T), b) = abstract_term eq;
wenzelm@13308
   536
    val b' = norm_term env b;
wenzelm@13336
   537
    val th = abstract_thm (ProofContext.sign_of ctxt) eq;
wenzelm@13308
   538
    fun err msg = err_in_locale ctxt (msg ^ ": " ^ quote y) [(name, map fst ps)];
wenzelm@12839
   539
  in
wenzelm@13308
   540
    conditional (exists (equal y o #1) xs) (fn () =>
wenzelm@13308
   541
      err "Attempt to define previously specified variable");
wenzelm@13308
   542
    conditional (exists (fn (Free (y', _), _) => y = y' | _ => false) env) (fn () =>
wenzelm@13308
   543
      err "Attempt to redefine variable");
wenzelm@13336
   544
    (Term.add_frees (xs, b'), (Free (y, T), b') :: env, th :: ths)
wenzelm@12839
   545
  end;
wenzelm@12575
   546
wenzelm@13308
   547
fun eval_text _ _ _ (text, Fixes _) = text
wenzelm@13336
   548
  | eval_text _ _ do_text ((spec, (xs, env, defs)), Assumes asms) =
wenzelm@13375
   549
      let val ts = map (norm_term env) (flat (map (map #1 o #2) asms))
wenzelm@13375
   550
      in (if do_text then spec @ ts else spec, (foldl Term.add_frees (xs, ts), env, defs)) end
wenzelm@13308
   551
  | eval_text ctxt id _ ((spec, binds), Defines defs) =
wenzelm@13308
   552
      (spec, foldl (bind_def ctxt id) (binds, map (#1 o #2) defs))
wenzelm@13308
   553
  | eval_text _ _ _ (text, Notes _) = text;
wenzelm@13308
   554
wenzelm@13308
   555
fun closeup _ false elem = elem
wenzelm@13308
   556
  | closeup ctxt true elem =
wenzelm@12839
   557
      let
wenzelm@13308
   558
        fun close_frees t =
wenzelm@13308
   559
          let val frees = rev (filter_out (ProofContext.is_fixed ctxt o #1)
wenzelm@13308
   560
            (Term.add_frees ([], t)))
wenzelm@13308
   561
          in Term.list_all_free (frees, t) end;
wenzelm@13308
   562
wenzelm@13308
   563
        fun no_binds [] = []
wenzelm@13308
   564
          | no_binds _ =
wenzelm@13308
   565
              raise ProofContext.CONTEXT ("Illegal term bindings in locale element", ctxt);
wenzelm@13308
   566
      in
wenzelm@13308
   567
        (case elem of
wenzelm@13308
   568
          Assumes asms => Assumes (asms |> map (fn (a, propps) =>
wenzelm@13308
   569
            (a, map (fn (t, (ps, qs)) => (close_frees t, (no_binds ps, no_binds qs))) propps)))
wenzelm@13308
   570
        | Defines defs => Defines (defs |> map (fn (a, (t, ps)) =>
wenzelm@13308
   571
            (a, (close_frees (#2 (ProofContext.cert_def ctxt t)), no_binds ps))))
wenzelm@13308
   572
        | e => e)
wenzelm@13308
   573
      end;
wenzelm@12839
   574
wenzelm@12502
   575
wenzelm@12839
   576
fun finish_ext_elem parms _ (Fixes fixes, _) = Fixes (map (fn (x, _, mx) =>
wenzelm@12727
   577
      (x, assoc_string (parms, x), mx)) fixes)
wenzelm@12839
   578
  | finish_ext_elem _ close (Assumes asms, propp) =
wenzelm@12839
   579
      close (Assumes (map #1 asms ~~ propp))
wenzelm@12839
   580
  | finish_ext_elem _ close (Defines defs, propp) =
wenzelm@12727
   581
      close (Defines (map #1 defs ~~ map (fn [(t, (ps, []))] => (t, ps)) propp))
wenzelm@12839
   582
  | finish_ext_elem _ _ (Notes facts, _) = Notes facts;
wenzelm@12839
   583
wenzelm@12839
   584
fun finish_parms parms ((name, ps), elems) =
wenzelm@12839
   585
  ((name, map (fn (x, _) => (x, assoc (parms, x))) ps), elems);
wenzelm@12839
   586
wenzelm@13375
   587
fun finish_elems ctxt parms _ (text, ((id, Int e), _)) =
wenzelm@12839
   588
      let
wenzelm@13308
   589
        val [(_, es)] = unify_elemss ctxt parms [(id, e)];
wenzelm@13308
   590
        val text' = foldl (eval_text ctxt id false) (text, es);
wenzelm@13308
   591
      in (text', (id, map Int es)) end
wenzelm@13375
   592
  | finish_elems ctxt parms do_close (text, ((id, Ext e), [propp])) =
wenzelm@13308
   593
      let
wenzelm@13308
   594
        val e' = finish_ext_elem parms (closeup ctxt do_close) (e, propp);
wenzelm@13375
   595
        val text' = eval_text ctxt id true (text, e');
wenzelm@13308
   596
      in (text', (id, [Ext e'])) end;
wenzelm@12839
   597
wenzelm@12839
   598
in
wenzelm@12510
   599
wenzelm@13375
   600
fun finish_elemss ctxt parms do_close =
wenzelm@13375
   601
  foldl_map (apsnd (finish_parms parms) o finish_elems ctxt parms do_close);
wenzelm@12839
   602
wenzelm@12839
   603
end;
wenzelm@12839
   604
wenzelm@13375
   605
fun prep_elemss prep_fixes prepp do_close context fixed_params raw_elemss raw_concl =
wenzelm@12529
   606
  let
wenzelm@12727
   607
    val (raw_ctxt, raw_proppss) = declare_elemss prep_fixes fixed_params raw_elemss context;
wenzelm@12529
   608
    val raw_propps = map flat raw_proppss;
wenzelm@12529
   609
    val raw_propp = flat raw_propps;
wenzelm@12529
   610
    val (ctxt, all_propp) =
wenzelm@12529
   611
      prepp (ProofContext.declare_terms (map Free fixed_params) raw_ctxt, raw_concl @ raw_propp);
wenzelm@12529
   612
    val ctxt = ProofContext.declare_terms (flat (map (map fst) all_propp)) ctxt;
wenzelm@12502
   613
wenzelm@12529
   614
    val all_propp' = map2 (op ~~)
wenzelm@12529
   615
      (#1 (#2 (ProofContext.bind_propp_schematic_i (ctxt, all_propp))), map (map snd) all_propp);
wenzelm@12529
   616
    val n = length raw_concl;
wenzelm@12529
   617
    val concl = take (n, all_propp');
wenzelm@12529
   618
    val propp = drop (n, all_propp');
wenzelm@12529
   619
    val propps = unflat raw_propps propp;
wenzelm@12839
   620
    val proppss = map (uncurry unflat) (raw_proppss ~~ propps);
wenzelm@12502
   621
wenzelm@12529
   622
    val xs = map #1 (params_of raw_elemss);
wenzelm@12727
   623
    val typing = unify_frozen ctxt 0
wenzelm@12529
   624
      (map (ProofContext.default_type raw_ctxt) xs)
wenzelm@12529
   625
      (map (ProofContext.default_type ctxt) xs);
wenzelm@12529
   626
    val parms = param_types (xs ~~ typing);
wenzelm@12273
   627
wenzelm@13308
   628
    val (text, elemss) =
wenzelm@13375
   629
      finish_elemss ctxt parms do_close (([], ([], [], [])), raw_elemss ~~ proppss);
wenzelm@13308
   630
  in ((parms, elemss, concl), text) end;
wenzelm@12502
   631
wenzelm@12502
   632
in
wenzelm@12502
   633
wenzelm@12529
   634
fun read_elemss x = prep_elemss read_fixes ProofContext.read_propp_schematic x;
wenzelm@12529
   635
fun cert_elemss x = prep_elemss cert_fixes ProofContext.cert_propp_schematic x;
wenzelm@12529
   636
wenzelm@12529
   637
end;
wenzelm@12529
   638
wenzelm@12529
   639
wenzelm@12529
   640
(* facts *)
wenzelm@12529
   641
wenzelm@12529
   642
local
wenzelm@12529
   643
wenzelm@12529
   644
fun prep_name ctxt (name, atts) =
wenzelm@12529
   645
  if NameSpace.is_qualified name then
wenzelm@12529
   646
    raise ProofContext.CONTEXT ("Illegal qualified name: " ^ quote name, ctxt)
wenzelm@12529
   647
  else (name, atts);
wenzelm@12529
   648
wenzelm@13375
   649
fun prep_facts _ _ (Int elem) = elem
wenzelm@13375
   650
  | prep_facts _ _ (Ext (Fixes fixes)) = Fixes fixes
wenzelm@13375
   651
  | prep_facts _ ctxt (Ext (Assumes asms)) = Assumes (map (apfst (prep_name ctxt)) asms)
wenzelm@13375
   652
  | prep_facts _ ctxt (Ext (Defines defs)) = Defines (map (apfst (prep_name ctxt)) defs)
wenzelm@13375
   653
  | prep_facts get ctxt (Ext (Notes facts)) = Notes (facts |> map (fn (a, bs) =>
wenzelm@13375
   654
      (prep_name ctxt a, map (apfst (get ctxt)) bs)));
wenzelm@12529
   655
wenzelm@12529
   656
in
wenzelm@12529
   657
wenzelm@12529
   658
fun get_facts x = prep_facts ProofContext.get_thms x;
wenzelm@12529
   659
fun get_facts_i x = prep_facts (K I) x;
wenzelm@12529
   660
wenzelm@12529
   661
end;
wenzelm@12529
   662
wenzelm@12529
   663
wenzelm@12546
   664
(* full context statements: import + elements + conclusion *)
wenzelm@12529
   665
wenzelm@12529
   666
local
wenzelm@12529
   667
wenzelm@12529
   668
fun prep_context_statement prep_expr prep_elemss prep_facts
wenzelm@13375
   669
    do_close fixed_params import elements raw_concl context =
wenzelm@12529
   670
  let
wenzelm@12529
   671
    val sign = ProofContext.sign_of context;
wenzelm@13375
   672
wenzelm@12575
   673
    fun flatten (ids, Elem (Fixes fixes)) =
wenzelm@12575
   674
          (ids, [(("", map (rpair None o #1) fixes), Ext (Fixes fixes))])
wenzelm@12575
   675
      | flatten (ids, Elem elem) = (ids, [(("", []), Ext elem)])
wenzelm@12575
   676
      | flatten (ids, Expr expr) =
wenzelm@13308
   677
          apsnd (map (apsnd Int)) (flatten_expr context (ids, prep_expr sign expr));
wenzelm@12529
   678
wenzelm@12575
   679
    val (import_ids, raw_import_elemss) = flatten ([], Expr import);
wenzelm@12575
   680
    val raw_elemss = flat (#2 ((foldl_map flatten (import_ids, elements))));
wenzelm@13375
   681
    val ((parms, all_elemss, concl), (spec, (_, _, defs))) = prep_elemss do_close
wenzelm@13336
   682
      context fixed_params (raw_import_elemss @ raw_elemss) raw_concl;
wenzelm@13375
   683
wenzelm@13375
   684
    val xs = foldl Term.add_frees ([], spec);
wenzelm@13375
   685
    val xs' = parms |> mapfilter (fn (x, _) =>
wenzelm@13375
   686
      (case assoc_string (xs, x) of None => None | Some T => Some (x, T)));
wenzelm@12529
   687
wenzelm@12529
   688
    val n = length raw_import_elemss;
wenzelm@12839
   689
    val (import_ctxt, (import_elemss, import_facts)) =
wenzelm@12839
   690
      activate_facts prep_facts (context, take (n, all_elemss));
wenzelm@12839
   691
    val (ctxt, (elemss, facts)) =
wenzelm@12839
   692
      activate_facts prep_facts (import_ctxt, drop (n, all_elemss));
wenzelm@12834
   693
  in
wenzelm@12834
   694
    ((((import_ctxt, (import_elemss, import_facts)),
wenzelm@13336
   695
      (ctxt, (elemss, facts))), (xs', spec, defs)), concl)
wenzelm@12834
   696
  end;
wenzelm@12529
   697
wenzelm@12529
   698
val gen_context = prep_context_statement intern_expr read_elemss get_facts;
wenzelm@12529
   699
val gen_context_i = prep_context_statement (K I) cert_elemss get_facts_i;
wenzelm@12529
   700
wenzelm@12834
   701
fun gen_facts prep_locale thy name =
wenzelm@12834
   702
  let val ((((_, (_, facts)), _), _), _) = thy |> ProofContext.init
wenzelm@13375
   703
    |> gen_context_i false [] (Locale (prep_locale (Theory.sign_of thy) name)) [] [];
wenzelm@13375
   704
  in flat (map (#2 o #1) facts) end;
wenzelm@12834
   705
wenzelm@12529
   706
fun gen_statement prep_locale prep_ctxt raw_locale elems concl ctxt =
wenzelm@12529
   707
  let
wenzelm@12529
   708
    val thy = ProofContext.theory_of ctxt;
wenzelm@12529
   709
    val locale = apsome (prep_locale (Theory.sign_of thy)) raw_locale;
wenzelm@12529
   710
    val (fixed_params, import) =
wenzelm@12529
   711
      (case locale of None => ([], empty)
wenzelm@12529
   712
      | Some name => (param_types (#1 (#params (the_locale thy name))), Locale name));
wenzelm@12730
   713
    val ((((locale_ctxt, _), (elems_ctxt, _)), _), concl') =
wenzelm@13375
   714
      prep_ctxt false fixed_params import elems concl ctxt;
wenzelm@12529
   715
  in (locale, locale_ctxt, elems_ctxt, concl') end;
wenzelm@12529
   716
wenzelm@12529
   717
in
wenzelm@12529
   718
wenzelm@13375
   719
fun read_context x y z = #1 (gen_context true [] x y [] z);
wenzelm@13375
   720
fun cert_context x y z = #1 (gen_context_i true [] x y [] z);
wenzelm@12834
   721
val locale_facts = gen_facts intern;
wenzelm@12834
   722
val locale_facts_i = gen_facts (K I);
wenzelm@12529
   723
val read_context_statement = gen_statement intern gen_context;
wenzelm@12529
   724
val cert_context_statement = gen_statement (K I) gen_context_i;
wenzelm@12502
   725
wenzelm@12502
   726
end;
wenzelm@11896
   727
wenzelm@11896
   728
wenzelm@11896
   729
wenzelm@13336
   730
(** define locales **)
wenzelm@13336
   731
wenzelm@13336
   732
(* print locale *)
wenzelm@12070
   733
wenzelm@12758
   734
fun print_locale thy import body =
wenzelm@12070
   735
  let
wenzelm@12070
   736
    val sg = Theory.sign_of thy;
wenzelm@12289
   737
    val thy_ctxt = ProofContext.init thy;
wenzelm@13375
   738
    val (((_, (import_elemss, _)), (ctxt, (elemss, _))), _) = read_context import body thy_ctxt;
wenzelm@13375
   739
    val all_elems = flat (map #2 (import_elemss @ elemss));
wenzelm@12070
   740
wenzelm@12307
   741
    val prt_typ = Pretty.quote o ProofContext.pretty_typ ctxt;
wenzelm@12307
   742
    val prt_term = Pretty.quote o ProofContext.pretty_term ctxt;
wenzelm@12307
   743
    val prt_thm = Pretty.quote o ProofContext.pretty_thm ctxt;
wenzelm@12070
   744
wenzelm@12070
   745
    fun prt_syn syn =
wenzelm@12070
   746
      let val s = (case syn of None => "(structure)" | Some mx => Syntax.string_of_mixfix mx)
wenzelm@12575
   747
      in if s = "" then [] else [Pretty.brk 2, Pretty.str s] end;
wenzelm@12070
   748
    fun prt_fix (x, Some T, syn) = Pretty.block (Pretty.str (x ^ " ::") :: Pretty.brk 1 ::
wenzelm@12070
   749
          prt_typ T :: Pretty.brk 1 :: prt_syn syn)
wenzelm@12070
   750
      | prt_fix (x, None, syn) = Pretty.block (Pretty.str x :: Pretty.brk 1 :: prt_syn syn);
wenzelm@12070
   751
wenzelm@12307
   752
    fun prt_name "" = [Pretty.brk 1]
wenzelm@12307
   753
      | prt_name name = [Pretty.str (ProofContext.cond_extern ctxt name ^ ":"), Pretty.brk 1];
wenzelm@12307
   754
    fun prt_asm ((a, _), ts) = Pretty.block (prt_name a @ Pretty.breaks (map (prt_term o fst) ts));
wenzelm@12307
   755
    fun prt_def ((a, _), (t, _)) = Pretty.block (prt_name a @ [prt_term t]);
wenzelm@12307
   756
    fun prt_fact ((a, _), ths) = Pretty.block
wenzelm@12307
   757
      (prt_name a @ Pretty.breaks (map prt_thm (flat (map fst ths))));
wenzelm@12070
   758
wenzelm@12289
   759
    fun items _ [] = []
wenzelm@12289
   760
      | items prfx (x :: xs) = Pretty.block [Pretty.str prfx, Pretty.brk 1, x] :: items "  and" xs;
wenzelm@12289
   761
    fun prt_elem (Fixes fixes) = items "fixes" (map prt_fix fixes)
wenzelm@12289
   762
      | prt_elem (Assumes asms) = items "assumes" (map prt_asm asms)
wenzelm@12289
   763
      | prt_elem (Defines defs) = items "defines" (map prt_def defs)
wenzelm@12289
   764
      | prt_elem (Notes facts) = items "notes" (map prt_fact facts);
wenzelm@12277
   765
  in
wenzelm@13336
   766
    Pretty.big_list "context elements:" (map (Pretty.chunks o prt_elem) all_elems)
wenzelm@13336
   767
    |> Pretty.writeln
wenzelm@12277
   768
  end;
wenzelm@12070
   769
wenzelm@12070
   770
wenzelm@12730
   771
(* store results *)
wenzelm@11896
   772
wenzelm@12706
   773
local
wenzelm@12706
   774
wenzelm@12702
   775
fun hide_bound_names names thy =
wenzelm@12702
   776
  thy |> PureThy.hide_thms false
wenzelm@12702
   777
    (map (Sign.full_name (Theory.sign_of thy)) (filter_out (equal "") names));
wenzelm@12702
   778
wenzelm@12958
   779
in
wenzelm@12958
   780
wenzelm@13375
   781
fun have_thmss_qualified kind name args thy =
wenzelm@12706
   782
  thy
wenzelm@13375
   783
  |> Theory.add_path (Sign.base_name name)
wenzelm@12711
   784
  |> PureThy.have_thmss_i (Drule.kind kind) args
wenzelm@12706
   785
  |>> hide_bound_names (map (#1 o #1) args)
wenzelm@12706
   786
  |>> Theory.parent_path;
wenzelm@12706
   787
wenzelm@12958
   788
fun smart_have_thmss kind None = PureThy.have_thmss_i (Drule.kind kind)
wenzelm@12958
   789
  | smart_have_thmss kind (Some (loc, _)) = have_thmss_qualified kind loc;
wenzelm@12958
   790
wenzelm@12958
   791
end;
wenzelm@12958
   792
wenzelm@12958
   793
local
wenzelm@12958
   794
wenzelm@12958
   795
fun put_facts loc args thy =
wenzelm@12958
   796
  let
wenzelm@13308
   797
    val {import, elems, params} = the_locale thy loc;
wenzelm@12958
   798
    val note = Notes (map (fn ((a, more_atts), th_atts) =>
wenzelm@12958
   799
      ((a, more_atts), map (apfst (map (curry Thm.name_thm a))) th_atts)) args);
wenzelm@13308
   800
  in thy |> put_locale loc (make_locale import (elems @ [(note, stamp ())]) params) end;
wenzelm@12958
   801
wenzelm@12706
   802
fun gen_have_thmss prep_locale get_thms kind raw_loc raw_args thy =
wenzelm@12706
   803
  let
wenzelm@12706
   804
    val thy_ctxt = ProofContext.init thy;
wenzelm@12706
   805
    val loc = prep_locale (Theory.sign_of thy) raw_loc;
wenzelm@13375
   806
    val loc_ctxt = #1 (#1 (#1 (cert_context (Locale loc) [] thy_ctxt)));
wenzelm@12706
   807
    val args = map (apsnd (map (apfst (get_thms loc_ctxt)))) raw_args;
wenzelm@13375
   808
    val export = ProofContext.export_standard loc_ctxt thy_ctxt;
wenzelm@12711
   809
    val results = map (map export o #2) (#2 (ProofContext.have_thmss_i args loc_ctxt));
wenzelm@12706
   810
    val args' = map (rpair [] o #1 o #1) args ~~ map (single o Thm.no_attributes) results;
wenzelm@12706
   811
  in
wenzelm@12706
   812
    thy
wenzelm@12706
   813
    |> put_facts loc args
wenzelm@12706
   814
    |> have_thmss_qualified kind loc args'
wenzelm@12706
   815
  end;
wenzelm@12706
   816
wenzelm@12706
   817
in
wenzelm@12706
   818
wenzelm@12711
   819
val have_thmss = gen_have_thmss intern ProofContext.get_thms;
wenzelm@12711
   820
val have_thmss_i = gen_have_thmss (K I) (K I);
wenzelm@12711
   821
wenzelm@13336
   822
fun add_thmss loc args (thy, ctxt) =
wenzelm@12958
   823
  let
wenzelm@12958
   824
    val args' = map (fn ((a, ths), atts) => ((a, atts), [(ths, [])])) args;
wenzelm@13336
   825
    val thy' = put_facts loc args' thy;
wenzelm@13375
   826
    val (ctxt', (_, facts')) = activate_facts (K I) (ctxt, [((loc, []), [Notes args'])]);
wenzelm@13375
   827
  in ((thy', ctxt'), map #1 facts') end;
wenzelm@12702
   828
wenzelm@12706
   829
end;
wenzelm@12063
   830
wenzelm@11896
   831
wenzelm@13336
   832
(* predicate text *)
wenzelm@13336
   833
wenzelm@13375
   834
local
wenzelm@13375
   835
wenzelm@13375
   836
val introN = "intro";
wenzelm@13375
   837
val axiomsN = "axioms";
wenzelm@13375
   838
wenzelm@13375
   839
fun atomize_spec sign ts =
wenzelm@13375
   840
  let
wenzelm@13375
   841
    val t = Library.foldr1 Logic.mk_conjunction ts;
wenzelm@13375
   842
    val body = ObjectLogic.atomize_term sign t;
wenzelm@13375
   843
    val bodyT = Term.fastype_of body;
wenzelm@13375
   844
  in
wenzelm@13375
   845
    if bodyT = propT then (t, propT, Thm.reflexive (Thm.cterm_of sign t))
wenzelm@13375
   846
    else (body, bodyT, ObjectLogic.atomize_rule sign (Thm.cterm_of sign t))
wenzelm@13375
   847
  end;
wenzelm@13375
   848
wenzelm@13375
   849
fun print_translation name xs thy =
wenzelm@13375
   850
  let
wenzelm@13375
   851
    val n = length xs;
wenzelm@13375
   852
    fun aprop_tr' c = (c, fn args =>
wenzelm@13375
   853
      if length args = n then Syntax.const "_aprop" $ Term.list_comb (Syntax.free c, args)
wenzelm@13375
   854
      else raise Match);
wenzelm@13375
   855
  in thy |> Theory.add_trfuns ([], [], map aprop_tr' (NameSpace.accesses' name), []) end;
wenzelm@13336
   856
wenzelm@13375
   857
in
wenzelm@13375
   858
wenzelm@13375
   859
fun define_pred bname loc (xs, ts, defs) elemss thy =
wenzelm@13375
   860
  let
wenzelm@13375
   861
    val sign = Theory.sign_of thy;
wenzelm@13375
   862
    val name = Sign.full_name sign bname;
wenzelm@13375
   863
wenzelm@13375
   864
wenzelm@13375
   865
    (* predicate definition and syntax *)
wenzelm@13336
   866
wenzelm@13375
   867
    val (body, bodyT, body_eq) = atomize_spec sign ts;
wenzelm@13375
   868
    val predT = map #2 xs ---> bodyT;
wenzelm@13375
   869
    val head = Term.list_comb (Const (name, predT), map Free xs);
wenzelm@13375
   870
    val statement = ObjectLogic.assert_propT sign head;
wenzelm@13375
   871
wenzelm@13375
   872
    val (defs_thy, [pred_def]) =
wenzelm@13375
   873
      thy
wenzelm@13375
   874
      |> (if bodyT = propT then print_translation name xs else I)
wenzelm@13375
   875
      |> Theory.add_consts_i [(bname, predT, Syntax.NoSyn)]
wenzelm@13375
   876
      |> PureThy.add_defs_i false [((Thm.def_name bname, Logic.mk_equals (head, body)), [])];
wenzelm@13375
   877
    val defs_sign = Theory.sign_of defs_thy;
wenzelm@13375
   878
    val cert = Thm.cterm_of defs_sign;
wenzelm@13375
   879
wenzelm@13336
   880
wenzelm@13375
   881
    (* introduction rule *)
wenzelm@13375
   882
wenzelm@13375
   883
    val intro = Tactic.prove_standard defs_sign (map #1 xs) ts statement (fn _ =>
wenzelm@13375
   884
      Tactic.rewrite_goals_tac [pred_def] THEN
wenzelm@13375
   885
      Tactic.compose_tac (false, body_eq RS Drule.equal_elim_rule1, 1) 1 THEN
wenzelm@13375
   886
      Tactic.compose_tac (false, Drule.conj_intr_list (map (Thm.assume o cert) ts), 0) 1);
wenzelm@13375
   887
wenzelm@13375
   888
wenzelm@13375
   889
    (* derived axioms *)
wenzelm@13375
   890
wenzelm@13375
   891
    val conjuncts =
wenzelm@13375
   892
      Thm.assume (cert statement)
wenzelm@13375
   893
      |> Tactic.rewrite_rule [pred_def]
wenzelm@13375
   894
      |> Thm.equal_elim (Thm.symmetric body_eq)
wenzelm@13375
   895
      |> Drule.conj_elim_precise (length ts);
wenzelm@13375
   896
wenzelm@13375
   897
    val assumes = elemss |> map (fn (("", _), es) =>
wenzelm@13375
   898
        flat (es |> map (fn Assumes asms => flat (map (map #1 o #2) asms) | _ => []))
wenzelm@13375
   899
      | _ => []) |> flat;
wenzelm@13375
   900
wenzelm@13375
   901
    val axioms = (assumes ~~ conjuncts) |> map (fn (t, ax) =>
wenzelm@13375
   902
      Tactic.prove defs_sign [] [] t (fn _ =>
wenzelm@13375
   903
        Tactic.rewrite_goals_tac defs THEN
wenzelm@13375
   904
        Tactic.compose_tac (false, ax, 0) 1));
wenzelm@13375
   905
wenzelm@13375
   906
    val implies_intr_assumes = Drule.implies_intr_list (map cert assumes);
wenzelm@13375
   907
    fun implies_elim_axioms th = Drule.implies_elim_list (implies_intr_assumes th) axioms;
wenzelm@13375
   908
wenzelm@13375
   909
    fun change_elem (axms, Assumes asms) =
wenzelm@13375
   910
          apsnd Notes ((axms, asms) |> foldl_map (fn (axs, (a, spec)) =>
wenzelm@13375
   911
            let val n = length spec
wenzelm@13375
   912
            in (Library.drop (n, axs), (a, [(Library.take (n, axs), [])])) end))
wenzelm@13375
   913
      | change_elem (axms, Notes facts) =
wenzelm@13375
   914
          (axms, Notes (facts |> map (apsnd (map (apfst (map implies_elim_axioms))))))
wenzelm@13375
   915
      | change_elem e = e;
wenzelm@13375
   916
wenzelm@13375
   917
    val elemss' = ((axioms, elemss) |> foldl_map
wenzelm@13375
   918
      (fn (axms, (id as ("", _), es)) => foldl_map change_elem (axms, es) |> apsnd (pair id)
wenzelm@13375
   919
        | x => x) |> #2) @
wenzelm@13375
   920
      [(("", []), [Assumes [((NameSpace.pack [loc, axiomsN], []), [(statement, ([], []))])]])];
wenzelm@13375
   921
  in
wenzelm@13375
   922
    defs_thy
wenzelm@13375
   923
    |> have_thmss_qualified "" bname
wenzelm@13375
   924
      [((introN, [ContextRules.intro_query_global None]), [([intro], [])])]
wenzelm@13375
   925
    |> #1 |> rpair elemss'
wenzelm@13375
   926
  end;
wenzelm@13375
   927
wenzelm@13375
   928
end;
wenzelm@13336
   929
wenzelm@13336
   930
wenzelm@13297
   931
(* add_locale(_i) *)
wenzelm@13297
   932
wenzelm@13297
   933
local
wenzelm@13297
   934
wenzelm@13375
   935
fun gen_add_locale prep_ctxt prep_expr pname bname raw_import raw_body thy =
wenzelm@13297
   936
  let
wenzelm@13297
   937
    val sign = Theory.sign_of thy;
wenzelm@13297
   938
    val name = Sign.full_name sign bname;
wenzelm@13297
   939
    val _ = conditional (is_some (get_locale thy name)) (fn () =>
wenzelm@13297
   940
      error ("Duplicate definition of locale " ^ quote name));
wenzelm@13297
   941
wenzelm@13297
   942
    val thy_ctxt = ProofContext.init thy;
wenzelm@13375
   943
    val (((import_ctxt, (import_elemss, _)), (body_ctxt, (body_elemss, _))), text) =
wenzelm@13375
   944
      prep_ctxt raw_import raw_body thy_ctxt;
wenzelm@13375
   945
    val elemss = import_elemss @ body_elemss;
wenzelm@13297
   946
wenzelm@13375
   947
    val (pred_thy, elemss') =
wenzelm@13375
   948
      if pname = Some None orelse Library.null (#1 text) then (thy, elemss)
wenzelm@13375
   949
      else if pname = None then thy |> define_pred (bname ^ "_axioms") bname text elemss
wenzelm@13375
   950
      else thy |> define_pred (the (the pname)) bname text elemss;
wenzelm@13375
   951
    val elems' = elemss' |> filter (equal "" o #1 o #1) |> map #2 |> flat;
wenzelm@13297
   952
wenzelm@13375
   953
    val pred_ctxt = ProofContext.init pred_thy;
wenzelm@13375
   954
    val (ctxt, (_, facts)) = activate_facts (K I) (pred_ctxt, elemss')
wenzelm@13375
   955
    val export = ProofContext.export_standard ctxt pred_ctxt;
wenzelm@13297
   956
  in
wenzelm@13375
   957
    pred_thy
wenzelm@13375
   958
    |> have_thmss_qualified "" name (facts |> filter #2 |> map (fn ((a, ths), _) =>
wenzelm@13375
   959
      ((a, []), [(map export ths, [])]))) |> #1
wenzelm@13297
   960
    |> declare_locale name
wenzelm@13375
   961
    |> put_locale name (make_locale (prep_expr sign raw_import)
wenzelm@13375
   962
        (map (fn e => (e, stamp ())) elems')
wenzelm@13375
   963
        (params_of elemss', map #1 (params_of body_elemss)))
wenzelm@13297
   964
  end;
wenzelm@13297
   965
wenzelm@13297
   966
in
wenzelm@13297
   967
wenzelm@13297
   968
val add_locale = gen_add_locale read_context intern_expr;
wenzelm@13297
   969
val add_locale_i = gen_add_locale cert_context (K I);
wenzelm@13297
   970
wenzelm@13297
   971
end;
wenzelm@13297
   972
wenzelm@13297
   973
wenzelm@12730
   974
wenzelm@11896
   975
(** locale theory setup **)
wenzelm@12063
   976
wenzelm@11896
   977
val setup =
wenzelm@11896
   978
 [LocalesData.init];
wenzelm@11896
   979
wenzelm@11896
   980
end;