src/Pure/Isar/locale.ML
author wenzelm
Fri Jul 19 18:44:07 2002 +0200 (2002-07-19)
changeset 13399 c136276dc847
parent 13394 b39347206719
child 13415 63462ccc6fac
permissions -rw-r--r--
support locale ``views'' (for cumulative predicates);
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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 * cterm 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 * cterm 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: bool -> bstring -> expr -> context attribute element list -> theory -> theory
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  val add_locale_i: bool -> bstring -> expr -> context attribute element_i list
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    -> 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 view = (cterm * thm list) option;
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fun view_statement (None: view) = None
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  | view_statement (Some (ct, _)) = Some ct;
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fun view_axioms (None: view) = []
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  | view_axioms (Some (_, axs)) = axs;
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type locale =
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 {view: view,                                             (*external view on assumptions*)
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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/local params*)
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fun make_locale view import elems params =
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 {view = view, 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 ({view, import, elems, params}: locale, {elems = elems', ...}: locale) =
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    Some (make_locale view 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 = "" 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);
wenzelm@12502
   315
    val maxidx = length raw_parmss;
wenzelm@12502
   316
    val idx_parmss = (0 upto maxidx - 1) ~~ raw_parmss;
wenzelm@12502
   317
wenzelm@12502
   318
    fun varify i = Term.map_type_tfree (fn (a, S) => TVar ((a, i), S));
wenzelm@12529
   319
    fun varify_parms (i, ps) = map (apsnd (varify i)) (param_types ps);
wenzelm@12529
   320
    val parms = fixed_parms @ flat (map varify_parms idx_parmss);
wenzelm@12502
   321
wenzelm@12529
   322
    fun unify T ((env, maxidx), U) = Type.unify tsig (env, maxidx) (U, T)
wenzelm@12529
   323
      handle Type.TUNIFY => raise TYPE ("unify_parms: failed to unify types", [U, T], []);
wenzelm@12502
   324
    fun unify_list (envir, T :: Us) = foldl (unify T) (envir, Us)
wenzelm@12502
   325
      | unify_list (envir, []) = envir;
wenzelm@12502
   326
    val (unifier, _) = foldl unify_list
wenzelm@12502
   327
      ((Vartab.empty, maxidx), map #2 (Symtab.dest (Symtab.make_multi parms)));
wenzelm@12502
   328
wenzelm@12502
   329
    val parms' = map (apsnd (Envir.norm_type unifier)) (gen_distinct eq_fst parms);
wenzelm@12502
   330
    val unifier' = Vartab.extend (unifier, frozen_tvars ctxt (map #2 parms'));
wenzelm@12502
   331
wenzelm@12502
   332
    fun inst_parms (i, ps) =
wenzelm@12502
   333
      foldr Term.add_typ_tfrees (mapfilter snd ps, [])
wenzelm@12502
   334
      |> mapfilter (fn (a, S) =>
wenzelm@12502
   335
          let val T = Envir.norm_type unifier' (TVar ((a, i), S))
wenzelm@12502
   336
          in if T = TFree (a, S) then None else Some ((a, S), T) end);
wenzelm@12502
   337
  in map inst_parms idx_parmss end;
wenzelm@12502
   338
wenzelm@12529
   339
in
wenzelm@12502
   340
wenzelm@12529
   341
fun unify_elemss _ _ [] = []
wenzelm@12529
   342
  | unify_elemss _ [] [elems] = [elems]
wenzelm@12529
   343
  | unify_elemss ctxt fixed_parms elemss =
wenzelm@12502
   344
      let
wenzelm@12529
   345
        val envs = unify_parms ctxt fixed_parms (map (#2 o #1) elemss);
wenzelm@13308
   346
        fun inst (((name, ps), elems), env) =
wenzelm@13308
   347
          ((name, map (apsnd (apsome (inst_type env))) ps), (map (inst_elem ctxt env) elems));
wenzelm@12839
   348
      in map inst (elemss ~~ envs) end;
wenzelm@12502
   349
wenzelm@12575
   350
fun flatten_expr ctxt (prev_idents, expr) =
wenzelm@12014
   351
  let
wenzelm@12014
   352
    val thy = ProofContext.theory_of ctxt;
wenzelm@12263
   353
wenzelm@12289
   354
    fun renaming (Some x :: xs) (y :: ys) = (y, x) :: renaming xs ys
wenzelm@12289
   355
      | renaming (None :: xs) (y :: ys) = renaming xs ys
wenzelm@12273
   356
      | renaming [] _ = []
wenzelm@12289
   357
      | renaming xs [] = raise ERROR_MESSAGE ("Too many arguments in renaming: " ^
wenzelm@12289
   358
          commas (map (fn None => "_" | Some x => quote x) xs));
wenzelm@12289
   359
wenzelm@12289
   360
    fun rename_parms ren (name, ps) =
wenzelm@12289
   361
      let val ps' = map (rename ren) ps in
wenzelm@12289
   362
        (case duplicates ps' of [] => (name, ps')
wenzelm@12289
   363
        | dups => err_in_locale ctxt ("Duplicate parameters: " ^ commas_quote dups) [(name, ps')])
wenzelm@12289
   364
      end;
wenzelm@12263
   365
wenzelm@12273
   366
    fun identify ((ids, parms), Locale name) =
wenzelm@12289
   367
          let
wenzelm@12289
   368
            val {import, params, ...} = the_locale thy name;
wenzelm@12289
   369
            val ps = map #1 (#1 params);
wenzelm@12289
   370
          in
wenzelm@12273
   371
            if (name, ps) mem ids then (ids, parms)
wenzelm@12277
   372
            else
wenzelm@12289
   373
              let val (ids', parms') = identify ((ids, parms), import);  (*acyclic dependencies!*)
wenzelm@12289
   374
              in (ids' @ [(name, ps)], merge_lists parms' ps) end
wenzelm@12273
   375
          end
wenzelm@12273
   376
      | identify ((ids, parms), Rename (e, xs)) =
wenzelm@12273
   377
          let
wenzelm@12273
   378
            val (ids', parms') = identify (([], []), e);
wenzelm@12839
   379
            val ren = renaming xs parms'
wenzelm@12839
   380
              handle ERROR_MESSAGE msg => err_in_locale ctxt msg ids';
wenzelm@12289
   381
            val ids'' = distinct (map (rename_parms ren) ids');
wenzelm@12289
   382
            val parms'' = distinct (flat (map #2 ids''));
wenzelm@12289
   383
          in (merge_lists ids ids'', merge_lists parms parms'') end
wenzelm@12273
   384
      | identify (arg, Merge es) = foldl identify (arg, es);
wenzelm@12014
   385
wenzelm@12307
   386
    fun eval (name, xs) =
wenzelm@12273
   387
      let
wenzelm@13308
   388
        val {params = (ps, qs), elems, ...} = the_locale thy name;
wenzelm@12307
   389
        val ren = filter_out (op =) (map #1 ps ~~ xs);
wenzelm@13308
   390
        val (params', elems') =
wenzelm@13308
   391
          if null ren then ((ps, qs), map #1 elems)
wenzelm@12502
   392
          else ((map (apfst (rename ren)) ps, map (rename ren) qs),
wenzelm@13308
   393
            map (rename_elem ren o #1) elems);
wenzelm@13375
   394
        val elems'' = map (rename_facts (space_implode "_" xs)) elems';
wenzelm@13308
   395
      in ((name, params'), elems'') end;
wenzelm@12307
   396
wenzelm@12575
   397
    val idents = gen_rems (op =) (#1 (identify (([], []), expr)), prev_idents);
wenzelm@12575
   398
    val raw_elemss = unique_parms ctxt (map eval idents);
wenzelm@12529
   399
    val elemss = unify_elemss ctxt [] raw_elemss;
wenzelm@12575
   400
  in (prev_idents @ idents, elemss) end;
wenzelm@12046
   401
wenzelm@12510
   402
end;
wenzelm@12510
   403
wenzelm@12070
   404
wenzelm@12529
   405
(* activate elements *)
wenzelm@12273
   406
wenzelm@12510
   407
local
wenzelm@12510
   408
wenzelm@13399
   409
fun export_axioms axs _ hyps th =
wenzelm@13399
   410
  th |> Drule.satisfy_hyps axs
wenzelm@13399
   411
  |> Drule.implies_intr_list (Library.drop (length axs, hyps))
wenzelm@13399
   412
  |> Seq.single;
wenzelm@12263
   413
wenzelm@13399
   414
fun activate_elem _ ((ctxt, axs), Fixes fixes) = ((ctxt |> ProofContext.add_fixes fixes, axs), [])
wenzelm@13399
   415
  | activate_elem _ ((ctxt, axs), Assumes asms) =
wenzelm@13399
   416
      let
wenzelm@13399
   417
        val ts = flat (map (map #1 o #2) asms);
wenzelm@13399
   418
        val n = length ts;
wenzelm@13399
   419
        val (ctxt', res) =
wenzelm@13399
   420
          ctxt |> ProofContext.fix_frees ts
wenzelm@13399
   421
          |> ProofContext.assume_i (export_axioms (Library.take (n, axs))) asms;
wenzelm@13399
   422
      in ((ctxt', Library.drop (n, axs)), map (rpair false) res) end
wenzelm@13399
   423
  | activate_elem _ ((ctxt, axs), Defines defs) =
wenzelm@13399
   424
      let val (ctxt', res) =
wenzelm@13399
   425
        ctxt |> ProofContext.assume_i ProofContext.export_def
wenzelm@13399
   426
          (defs |> map (fn ((name, atts), (t, ps)) =>
wenzelm@13399
   427
            let val (c, t') = ProofContext.cert_def ctxt t
wenzelm@13399
   428
            in ((if name = "" then Thm.def_name c else name, atts), [(t', (ps, []))]) end))
wenzelm@13399
   429
      in ((ctxt', axs), map (rpair false) res) end
wenzelm@13399
   430
  | activate_elem is_ext ((ctxt, axs), Notes facts) =
wenzelm@13399
   431
      let val (ctxt', res) = ctxt |> ProofContext.have_thmss_i facts
wenzelm@13399
   432
      in ((ctxt', axs), map (rpair is_ext) res) end;
wenzelm@12502
   433
wenzelm@13399
   434
fun activate_elems ((name, ps), elems) (ctxt, axs) =
wenzelm@13399
   435
  let val ((ctxt', axs'), res) =
wenzelm@13399
   436
    foldl_map (activate_elem (name = "")) ((ProofContext.qualified true ctxt, axs), elems)
wenzelm@13399
   437
      handle ProofContext.CONTEXT (msg, ctxt) => err_in_locale ctxt msg [(name, map fst ps)]
wenzelm@13399
   438
  in ((ProofContext.restore_qualified ctxt ctxt', axs'), res) end;
wenzelm@13399
   439
wenzelm@13399
   440
fun activate_elemss prep_facts = foldl_map (fn ((ctxt, axs), ((name, ps), raw_elems)) =>
wenzelm@12834
   441
  let
wenzelm@12834
   442
    val elems = map (prep_facts ctxt) raw_elems;
wenzelm@13399
   443
    val ((ctxt', axs'), res) = apsnd flat (activate_elems ((name, ps), elems) (ctxt, axs));
wenzelm@13399
   444
  in ((ctxt', axs'), (((name, ps), elems), res)) end);
wenzelm@12834
   445
wenzelm@12546
   446
in
wenzelm@12546
   447
wenzelm@13399
   448
fun activate_facts prep_facts arg =
wenzelm@13399
   449
  apsnd (apsnd flat o Library.split_list) (activate_elemss prep_facts arg);
wenzelm@12546
   450
wenzelm@12510
   451
end;
wenzelm@12510
   452
wenzelm@12307
   453
wenzelm@12529
   454
wenzelm@12529
   455
(** prepare context elements **)
wenzelm@12529
   456
wenzelm@12529
   457
(* expressions *)
wenzelm@12529
   458
wenzelm@12529
   459
fun intern_expr sg (Locale xname) = Locale (intern sg xname)
wenzelm@12529
   460
  | intern_expr sg (Merge exprs) = Merge (map (intern_expr sg) exprs)
wenzelm@12529
   461
  | intern_expr sg (Rename (expr, xs)) = Rename (intern_expr sg expr, xs);
wenzelm@12529
   462
wenzelm@12529
   463
wenzelm@12546
   464
(* attributes *)
wenzelm@12546
   465
wenzelm@12546
   466
local fun read_att attrib (x, srcs) = (x, map attrib srcs) in
wenzelm@12546
   467
wenzelm@12546
   468
fun attribute _ (Elem (Fixes fixes)) = Elem (Fixes fixes)
wenzelm@12546
   469
  | attribute attrib (Elem (Assumes asms)) = Elem (Assumes (map (apfst (read_att attrib)) asms))
wenzelm@12546
   470
  | attribute attrib (Elem (Defines defs)) = Elem (Defines (map (apfst (read_att attrib)) defs))
wenzelm@12546
   471
  | attribute attrib (Elem (Notes facts)) =
wenzelm@12546
   472
      Elem (Notes (map (apfst (read_att attrib) o apsnd (map (read_att attrib))) facts))
wenzelm@12546
   473
  | attribute _ (Expr expr) = Expr expr;
wenzelm@12546
   474
wenzelm@12546
   475
end;
wenzelm@12546
   476
wenzelm@12546
   477
wenzelm@12529
   478
(* parameters *)
wenzelm@12502
   479
wenzelm@12502
   480
local
wenzelm@12502
   481
wenzelm@12529
   482
fun prep_fixes prep_vars ctxt fixes =
wenzelm@12529
   483
  let val vars = snd (foldl_map prep_vars (ctxt, map (fn (x, T, _) => ([x], T)) fixes))
wenzelm@12529
   484
  in map (fn (([x'], T'), (_, _, mx)) => (x', T', mx)) (vars ~~ fixes) end;
wenzelm@12529
   485
wenzelm@12529
   486
in
wenzelm@12529
   487
wenzelm@12529
   488
fun read_fixes x = prep_fixes ProofContext.read_vars x;
wenzelm@12529
   489
fun cert_fixes x = prep_fixes ProofContext.cert_vars x;
wenzelm@12529
   490
wenzelm@12529
   491
end;
wenzelm@12529
   492
wenzelm@12529
   493
wenzelm@12529
   494
(* propositions and bindings *)
wenzelm@12529
   495
wenzelm@12529
   496
datatype ('a, 'b) int_ext = Int of 'a | Ext of 'b;
wenzelm@12529
   497
wenzelm@12529
   498
local
wenzelm@12529
   499
wenzelm@12839
   500
local
wenzelm@12839
   501
wenzelm@12727
   502
fun declare_int_elem (ctxt, Fixes fixes) =
wenzelm@12575
   503
      (ctxt |> ProofContext.add_fixes (map (fn (x, T, mx) =>
wenzelm@12727
   504
        (x, apsome (Term.map_type_tfree (Type.param 0)) T, mx)) fixes), [])
wenzelm@12727
   505
  | declare_int_elem (ctxt, _) = (ctxt, []);
wenzelm@12529
   506
wenzelm@12529
   507
fun declare_ext_elem prep_fixes (ctxt, Fixes fixes) =
wenzelm@12575
   508
      (ctxt |> ProofContext.add_fixes (prep_fixes ctxt fixes), [])
wenzelm@12529
   509
  | declare_ext_elem _ (ctxt, Assumes asms) = (ctxt, map #2 asms)
wenzelm@12529
   510
  | declare_ext_elem _ (ctxt, Defines defs) = (ctxt, map (fn (_, (t, ps)) => [(t, (ps, []))]) defs)
wenzelm@12529
   511
  | declare_ext_elem _ (ctxt, Notes facts) = (ctxt, []);
wenzelm@12529
   512
wenzelm@12727
   513
fun declare_elems prep_fixes (ctxt, ((name, ps), elems)) =
wenzelm@12529
   514
  let val (ctxt', propps) =
wenzelm@12529
   515
    (case elems of
wenzelm@13308
   516
      Int es => foldl_map declare_int_elem (ctxt, es)
wenzelm@12546
   517
    | Ext e => foldl_map (declare_ext_elem prep_fixes) (ctxt, [e]))
wenzelm@12529
   518
    handle ProofContext.CONTEXT (msg, ctxt) => err_in_locale ctxt msg [(name, map fst ps)]
wenzelm@12727
   519
  in (ctxt', propps) end;
wenzelm@12727
   520
wenzelm@12839
   521
in
wenzelm@12839
   522
wenzelm@12727
   523
fun declare_elemss prep_fixes fixed_params raw_elemss ctxt =
wenzelm@12727
   524
  let
wenzelm@12727
   525
    val int_elemss =
wenzelm@12727
   526
      raw_elemss
wenzelm@12727
   527
      |> mapfilter (fn (id, Int es) => Some (id, es) | _ => None)
wenzelm@12727
   528
      |> unify_elemss ctxt fixed_params;
wenzelm@12727
   529
    val (_, raw_elemss') =
wenzelm@12727
   530
      foldl_map (fn ((_, es) :: elemss, (id, Int _)) => (elemss, (id, Int es)) | x => x)
wenzelm@12727
   531
        (int_elemss, raw_elemss);
wenzelm@12727
   532
  in foldl_map (declare_elems prep_fixes) (ctxt, raw_elemss') end;
wenzelm@12529
   533
wenzelm@12839
   534
end;
wenzelm@12529
   535
wenzelm@12839
   536
local
wenzelm@12839
   537
wenzelm@12839
   538
val norm_term = Envir.beta_norm oo Term.subst_atomic;
wenzelm@12839
   539
wenzelm@13336
   540
fun abstract_term eq =    (*assumes well-formedness according to ProofContext.cert_def*)
wenzelm@12839
   541
  let
wenzelm@12839
   542
    val body = Term.strip_all_body eq;
wenzelm@12839
   543
    val vars = map Free (Term.rename_wrt_term body (Term.strip_all_vars eq));
wenzelm@12839
   544
    val (lhs, rhs) = Logic.dest_equals (Term.subst_bounds (vars, body));
wenzelm@12839
   545
    val (f, xs) = Term.strip_comb lhs;
wenzelm@13336
   546
    val eq' = Term.list_abs_free (map Term.dest_Free xs, rhs);
wenzelm@13336
   547
  in (Term.dest_Free f, eq') end;
wenzelm@13336
   548
wenzelm@13336
   549
fun abstract_thm sign eq =
wenzelm@13336
   550
  Thm.assume (Thm.cterm_of sign eq) |> Drule.gen_all |> Drule.abs_def;
wenzelm@12502
   551
wenzelm@13336
   552
fun bind_def ctxt (name, ps) ((xs, env, ths), eq) =
wenzelm@12839
   553
  let
wenzelm@13336
   554
    val ((y, T), b) = abstract_term eq;
wenzelm@13308
   555
    val b' = norm_term env b;
wenzelm@13336
   556
    val th = abstract_thm (ProofContext.sign_of ctxt) eq;
wenzelm@13308
   557
    fun err msg = err_in_locale ctxt (msg ^ ": " ^ quote y) [(name, map fst ps)];
wenzelm@12839
   558
  in
wenzelm@13308
   559
    conditional (exists (equal y o #1) xs) (fn () =>
wenzelm@13308
   560
      err "Attempt to define previously specified variable");
wenzelm@13308
   561
    conditional (exists (fn (Free (y', _), _) => y = y' | _ => false) env) (fn () =>
wenzelm@13308
   562
      err "Attempt to redefine variable");
wenzelm@13336
   563
    (Term.add_frees (xs, b'), (Free (y, T), b') :: env, th :: ths)
wenzelm@12839
   564
  end;
wenzelm@12575
   565
wenzelm@13308
   566
fun eval_text _ _ _ (text, Fixes _) = text
wenzelm@13394
   567
  | eval_text _ _ is_ext ((((exts, exts'), (ints, ints')), (xs, env, defs)), Assumes asms) =
wenzelm@13394
   568
      let
wenzelm@13394
   569
        val ts = flat (map (map #1 o #2) asms);
wenzelm@13394
   570
        val ts' = map (norm_term env) ts;
wenzelm@13394
   571
        val spec' =
wenzelm@13394
   572
          if is_ext then ((exts @ ts, exts' @ ts'), (ints, ints'))
wenzelm@13394
   573
          else ((exts, exts'), (ints @ ts, ints' @ ts'));
wenzelm@13394
   574
      in (spec', (foldl Term.add_frees (xs, ts'), env, defs)) end
wenzelm@13308
   575
  | eval_text ctxt id _ ((spec, binds), Defines defs) =
wenzelm@13308
   576
      (spec, foldl (bind_def ctxt id) (binds, map (#1 o #2) defs))
wenzelm@13308
   577
  | eval_text _ _ _ (text, Notes _) = text;
wenzelm@13308
   578
wenzelm@13308
   579
fun closeup _ false elem = elem
wenzelm@13308
   580
  | closeup ctxt true elem =
wenzelm@12839
   581
      let
wenzelm@13308
   582
        fun close_frees t =
wenzelm@13308
   583
          let val frees = rev (filter_out (ProofContext.is_fixed ctxt o #1)
wenzelm@13308
   584
            (Term.add_frees ([], t)))
wenzelm@13308
   585
          in Term.list_all_free (frees, t) end;
wenzelm@13308
   586
wenzelm@13308
   587
        fun no_binds [] = []
wenzelm@13308
   588
          | no_binds _ =
wenzelm@13308
   589
              raise ProofContext.CONTEXT ("Illegal term bindings in locale element", ctxt);
wenzelm@13308
   590
      in
wenzelm@13308
   591
        (case elem of
wenzelm@13308
   592
          Assumes asms => Assumes (asms |> map (fn (a, propps) =>
wenzelm@13308
   593
            (a, map (fn (t, (ps, qs)) => (close_frees t, (no_binds ps, no_binds qs))) propps)))
wenzelm@13308
   594
        | Defines defs => Defines (defs |> map (fn (a, (t, ps)) =>
wenzelm@13308
   595
            (a, (close_frees (#2 (ProofContext.cert_def ctxt t)), no_binds ps))))
wenzelm@13308
   596
        | e => e)
wenzelm@13308
   597
      end;
wenzelm@12839
   598
wenzelm@12502
   599
wenzelm@12839
   600
fun finish_ext_elem parms _ (Fixes fixes, _) = Fixes (map (fn (x, _, mx) =>
wenzelm@12727
   601
      (x, assoc_string (parms, x), mx)) fixes)
wenzelm@12839
   602
  | finish_ext_elem _ close (Assumes asms, propp) =
wenzelm@12839
   603
      close (Assumes (map #1 asms ~~ propp))
wenzelm@12839
   604
  | finish_ext_elem _ close (Defines defs, propp) =
wenzelm@12727
   605
      close (Defines (map #1 defs ~~ map (fn [(t, (ps, []))] => (t, ps)) propp))
wenzelm@12839
   606
  | finish_ext_elem _ _ (Notes facts, _) = Notes facts;
wenzelm@12839
   607
wenzelm@12839
   608
fun finish_parms parms ((name, ps), elems) =
wenzelm@12839
   609
  ((name, map (fn (x, _) => (x, assoc (parms, x))) ps), elems);
wenzelm@12839
   610
wenzelm@13375
   611
fun finish_elems ctxt parms _ (text, ((id, Int e), _)) =
wenzelm@12839
   612
      let
wenzelm@13308
   613
        val [(_, es)] = unify_elemss ctxt parms [(id, e)];
wenzelm@13308
   614
        val text' = foldl (eval_text ctxt id false) (text, es);
wenzelm@13308
   615
      in (text', (id, map Int es)) end
wenzelm@13375
   616
  | finish_elems ctxt parms do_close (text, ((id, Ext e), [propp])) =
wenzelm@13308
   617
      let
wenzelm@13308
   618
        val e' = finish_ext_elem parms (closeup ctxt do_close) (e, propp);
wenzelm@13375
   619
        val text' = eval_text ctxt id true (text, e');
wenzelm@13308
   620
      in (text', (id, [Ext e'])) end;
wenzelm@12839
   621
wenzelm@12839
   622
in
wenzelm@12510
   623
wenzelm@13375
   624
fun finish_elemss ctxt parms do_close =
wenzelm@13375
   625
  foldl_map (apsnd (finish_parms parms) o finish_elems ctxt parms do_close);
wenzelm@12839
   626
wenzelm@12839
   627
end;
wenzelm@12839
   628
wenzelm@13375
   629
fun prep_elemss prep_fixes prepp do_close context fixed_params raw_elemss raw_concl =
wenzelm@12529
   630
  let
wenzelm@12727
   631
    val (raw_ctxt, raw_proppss) = declare_elemss prep_fixes fixed_params raw_elemss context;
wenzelm@12529
   632
    val raw_propps = map flat raw_proppss;
wenzelm@12529
   633
    val raw_propp = flat raw_propps;
wenzelm@12529
   634
    val (ctxt, all_propp) =
wenzelm@12529
   635
      prepp (ProofContext.declare_terms (map Free fixed_params) raw_ctxt, raw_concl @ raw_propp);
wenzelm@12529
   636
    val ctxt = ProofContext.declare_terms (flat (map (map fst) all_propp)) ctxt;
wenzelm@12502
   637
wenzelm@12529
   638
    val all_propp' = map2 (op ~~)
wenzelm@12529
   639
      (#1 (#2 (ProofContext.bind_propp_schematic_i (ctxt, all_propp))), map (map snd) all_propp);
wenzelm@12529
   640
    val n = length raw_concl;
wenzelm@13399
   641
    val concl = Library.take (n, all_propp');
wenzelm@13399
   642
    val propp = Library.drop (n, all_propp');
wenzelm@12529
   643
    val propps = unflat raw_propps propp;
wenzelm@12839
   644
    val proppss = map (uncurry unflat) (raw_proppss ~~ propps);
wenzelm@12502
   645
wenzelm@12529
   646
    val xs = map #1 (params_of raw_elemss);
wenzelm@12727
   647
    val typing = unify_frozen ctxt 0
wenzelm@12529
   648
      (map (ProofContext.default_type raw_ctxt) xs)
wenzelm@12529
   649
      (map (ProofContext.default_type ctxt) xs);
wenzelm@12529
   650
    val parms = param_types (xs ~~ typing);
wenzelm@12273
   651
wenzelm@13394
   652
    val (text, elemss) = finish_elemss ctxt parms do_close
wenzelm@13394
   653
      (((([], []), ([], [])), ([], [], [])), raw_elemss ~~ proppss);
wenzelm@13308
   654
  in ((parms, elemss, concl), text) end;
wenzelm@12502
   655
wenzelm@12502
   656
in
wenzelm@12502
   657
wenzelm@12529
   658
fun read_elemss x = prep_elemss read_fixes ProofContext.read_propp_schematic x;
wenzelm@12529
   659
fun cert_elemss x = prep_elemss cert_fixes ProofContext.cert_propp_schematic x;
wenzelm@12529
   660
wenzelm@12529
   661
end;
wenzelm@12529
   662
wenzelm@12529
   663
wenzelm@12529
   664
(* facts *)
wenzelm@12529
   665
wenzelm@12529
   666
local
wenzelm@12529
   667
wenzelm@12529
   668
fun prep_name ctxt (name, atts) =
wenzelm@12529
   669
  if NameSpace.is_qualified name then
wenzelm@12529
   670
    raise ProofContext.CONTEXT ("Illegal qualified name: " ^ quote name, ctxt)
wenzelm@12529
   671
  else (name, atts);
wenzelm@12529
   672
wenzelm@13375
   673
fun prep_facts _ _ (Int elem) = elem
wenzelm@13375
   674
  | prep_facts _ _ (Ext (Fixes fixes)) = Fixes fixes
wenzelm@13375
   675
  | prep_facts _ ctxt (Ext (Assumes asms)) = Assumes (map (apfst (prep_name ctxt)) asms)
wenzelm@13375
   676
  | prep_facts _ ctxt (Ext (Defines defs)) = Defines (map (apfst (prep_name ctxt)) defs)
wenzelm@13375
   677
  | prep_facts get ctxt (Ext (Notes facts)) = Notes (facts |> map (fn (a, bs) =>
wenzelm@13375
   678
      (prep_name ctxt a, map (apfst (get ctxt)) bs)));
wenzelm@12529
   679
wenzelm@12529
   680
in
wenzelm@12529
   681
wenzelm@12529
   682
fun get_facts x = prep_facts ProofContext.get_thms x;
wenzelm@12529
   683
fun get_facts_i x = prep_facts (K I) x;
wenzelm@12529
   684
wenzelm@12529
   685
end;
wenzelm@12529
   686
wenzelm@12529
   687
wenzelm@12546
   688
(* full context statements: import + elements + conclusion *)
wenzelm@12529
   689
wenzelm@12529
   690
local
wenzelm@12529
   691
wenzelm@12529
   692
fun prep_context_statement prep_expr prep_elemss prep_facts
wenzelm@13399
   693
    do_close axioms fixed_params import elements raw_concl context =
wenzelm@12529
   694
  let
wenzelm@12529
   695
    val sign = ProofContext.sign_of context;
wenzelm@13375
   696
wenzelm@12575
   697
    fun flatten (ids, Elem (Fixes fixes)) =
wenzelm@12575
   698
          (ids, [(("", map (rpair None o #1) fixes), Ext (Fixes fixes))])
wenzelm@12575
   699
      | flatten (ids, Elem elem) = (ids, [(("", []), Ext elem)])
wenzelm@12575
   700
      | flatten (ids, Expr expr) =
wenzelm@13308
   701
          apsnd (map (apsnd Int)) (flatten_expr context (ids, prep_expr sign expr));
wenzelm@12529
   702
wenzelm@12575
   703
    val (import_ids, raw_import_elemss) = flatten ([], Expr import);
wenzelm@12575
   704
    val raw_elemss = flat (#2 ((foldl_map flatten (import_ids, elements))));
wenzelm@13375
   705
    val ((parms, all_elemss, concl), (spec, (_, _, defs))) = prep_elemss do_close
wenzelm@13336
   706
      context fixed_params (raw_import_elemss @ raw_elemss) raw_concl;
wenzelm@13375
   707
wenzelm@12529
   708
    val n = length raw_import_elemss;
wenzelm@13399
   709
    val ((import_ctxt, axioms'), (import_elemss, import_facts)) =
wenzelm@13399
   710
      activate_facts prep_facts ((context, axioms), Library.take (n, all_elemss));
wenzelm@13399
   711
    val ((ctxt, _), (elemss, facts)) =
wenzelm@13399
   712
      activate_facts prep_facts ((import_ctxt, axioms'), Library.drop (n, all_elemss));
wenzelm@12834
   713
  in
wenzelm@12834
   714
    ((((import_ctxt, (import_elemss, import_facts)),
wenzelm@13394
   715
      (ctxt, (elemss, facts))), (parms, spec, defs)), concl)
wenzelm@12834
   716
  end;
wenzelm@12529
   717
wenzelm@12529
   718
val gen_context = prep_context_statement intern_expr read_elemss get_facts;
wenzelm@12529
   719
val gen_context_i = prep_context_statement (K I) cert_elemss get_facts_i;
wenzelm@12529
   720
wenzelm@12529
   721
fun gen_statement prep_locale prep_ctxt raw_locale elems concl ctxt =
wenzelm@12529
   722
  let
wenzelm@12529
   723
    val thy = ProofContext.theory_of ctxt;
wenzelm@12529
   724
    val locale = apsome (prep_locale (Theory.sign_of thy)) raw_locale;
wenzelm@13399
   725
    val (view, fixed_params, import) =
wenzelm@13399
   726
      (case locale of None => (None, [], empty)
wenzelm@13399
   727
      | Some name =>
wenzelm@13399
   728
        let val {view, params = (ps, _), ...} = the_locale thy name
wenzelm@13399
   729
        in (view, param_types ps, Locale name) end);
wenzelm@12730
   730
    val ((((locale_ctxt, _), (elems_ctxt, _)), _), concl') =
wenzelm@13399
   731
      prep_ctxt false (view_axioms view) fixed_params import elems concl ctxt;
wenzelm@13399
   732
  in (locale, view_statement view, locale_ctxt, elems_ctxt, concl') end;
wenzelm@13399
   733
wenzelm@13399
   734
fun gen_facts prep_locale thy name =
wenzelm@13399
   735
  let val ((((_, (_, facts)), _), _), _) = thy |> ProofContext.init
wenzelm@13399
   736
    |> gen_context_i false [] [] (Locale (prep_locale (Theory.sign_of thy) name)) [] [];
wenzelm@13399
   737
  in flat (map (#2 o #1) facts) end;
wenzelm@12529
   738
wenzelm@12529
   739
in
wenzelm@12529
   740
wenzelm@12834
   741
val locale_facts = gen_facts intern;
wenzelm@12834
   742
val locale_facts_i = gen_facts (K I);
wenzelm@13399
   743
wenzelm@13399
   744
fun read_context x y z = #1 (gen_context true [] [] x y [] z);
wenzelm@13399
   745
fun cert_context x y z = #1 (gen_context_i true [] [] x y [] z);
wenzelm@12529
   746
val read_context_statement = gen_statement intern gen_context;
wenzelm@12529
   747
val cert_context_statement = gen_statement (K I) gen_context_i;
wenzelm@12502
   748
wenzelm@12502
   749
end;
wenzelm@11896
   750
wenzelm@11896
   751
wenzelm@11896
   752
wenzelm@13336
   753
(** define locales **)
wenzelm@13336
   754
wenzelm@13336
   755
(* print locale *)
wenzelm@12070
   756
wenzelm@12758
   757
fun print_locale thy import body =
wenzelm@12070
   758
  let
wenzelm@12289
   759
    val thy_ctxt = ProofContext.init thy;
wenzelm@13375
   760
    val (((_, (import_elemss, _)), (ctxt, (elemss, _))), _) = read_context import body thy_ctxt;
wenzelm@13375
   761
    val all_elems = flat (map #2 (import_elemss @ elemss));
wenzelm@12070
   762
wenzelm@12307
   763
    val prt_typ = Pretty.quote o ProofContext.pretty_typ ctxt;
wenzelm@12307
   764
    val prt_term = Pretty.quote o ProofContext.pretty_term ctxt;
wenzelm@12307
   765
    val prt_thm = Pretty.quote o ProofContext.pretty_thm ctxt;
wenzelm@12070
   766
wenzelm@12070
   767
    fun prt_syn syn =
wenzelm@12070
   768
      let val s = (case syn of None => "(structure)" | Some mx => Syntax.string_of_mixfix mx)
wenzelm@12575
   769
      in if s = "" then [] else [Pretty.brk 2, Pretty.str s] end;
wenzelm@12070
   770
    fun prt_fix (x, Some T, syn) = Pretty.block (Pretty.str (x ^ " ::") :: Pretty.brk 1 ::
wenzelm@12070
   771
          prt_typ T :: Pretty.brk 1 :: prt_syn syn)
wenzelm@12070
   772
      | prt_fix (x, None, syn) = Pretty.block (Pretty.str x :: Pretty.brk 1 :: prt_syn syn);
wenzelm@12070
   773
wenzelm@12307
   774
    fun prt_name "" = [Pretty.brk 1]
wenzelm@12307
   775
      | prt_name name = [Pretty.str (ProofContext.cond_extern ctxt name ^ ":"), Pretty.brk 1];
wenzelm@12307
   776
    fun prt_asm ((a, _), ts) = Pretty.block (prt_name a @ Pretty.breaks (map (prt_term o fst) ts));
wenzelm@12307
   777
    fun prt_def ((a, _), (t, _)) = Pretty.block (prt_name a @ [prt_term t]);
wenzelm@12307
   778
    fun prt_fact ((a, _), ths) = Pretty.block
wenzelm@12307
   779
      (prt_name a @ Pretty.breaks (map prt_thm (flat (map fst ths))));
wenzelm@12070
   780
wenzelm@12289
   781
    fun items _ [] = []
wenzelm@12289
   782
      | items prfx (x :: xs) = Pretty.block [Pretty.str prfx, Pretty.brk 1, x] :: items "  and" xs;
wenzelm@12289
   783
    fun prt_elem (Fixes fixes) = items "fixes" (map prt_fix fixes)
wenzelm@12289
   784
      | prt_elem (Assumes asms) = items "assumes" (map prt_asm asms)
wenzelm@12289
   785
      | prt_elem (Defines defs) = items "defines" (map prt_def defs)
wenzelm@12289
   786
      | prt_elem (Notes facts) = items "notes" (map prt_fact facts);
wenzelm@12277
   787
  in
wenzelm@13336
   788
    Pretty.big_list "context elements:" (map (Pretty.chunks o prt_elem) all_elems)
wenzelm@13336
   789
    |> Pretty.writeln
wenzelm@12277
   790
  end;
wenzelm@12070
   791
wenzelm@12070
   792
wenzelm@12730
   793
(* store results *)
wenzelm@11896
   794
wenzelm@12706
   795
local
wenzelm@12706
   796
wenzelm@12702
   797
fun hide_bound_names names thy =
wenzelm@12702
   798
  thy |> PureThy.hide_thms false
wenzelm@12702
   799
    (map (Sign.full_name (Theory.sign_of thy)) (filter_out (equal "") names));
wenzelm@12702
   800
wenzelm@12958
   801
in
wenzelm@12958
   802
wenzelm@13375
   803
fun have_thmss_qualified kind name args thy =
wenzelm@12706
   804
  thy
wenzelm@13375
   805
  |> Theory.add_path (Sign.base_name name)
wenzelm@12711
   806
  |> PureThy.have_thmss_i (Drule.kind kind) args
wenzelm@12706
   807
  |>> hide_bound_names (map (#1 o #1) args)
wenzelm@12706
   808
  |>> Theory.parent_path;
wenzelm@12706
   809
wenzelm@12958
   810
fun smart_have_thmss kind None = PureThy.have_thmss_i (Drule.kind kind)
wenzelm@12958
   811
  | smart_have_thmss kind (Some (loc, _)) = have_thmss_qualified kind loc;
wenzelm@12958
   812
wenzelm@12958
   813
end;
wenzelm@12958
   814
wenzelm@12958
   815
local
wenzelm@12958
   816
wenzelm@12958
   817
fun put_facts loc args thy =
wenzelm@12958
   818
  let
wenzelm@13399
   819
    val {view, import, elems, params} = the_locale thy loc;
wenzelm@12958
   820
    val note = Notes (map (fn ((a, more_atts), th_atts) =>
wenzelm@12958
   821
      ((a, more_atts), map (apfst (map (curry Thm.name_thm a))) th_atts)) args);
wenzelm@13399
   822
  in thy |> put_locale loc (make_locale view import (elems @ [(note, stamp ())]) params) end;
wenzelm@12958
   823
wenzelm@12706
   824
fun gen_have_thmss prep_locale get_thms kind raw_loc raw_args thy =
wenzelm@12706
   825
  let
wenzelm@12706
   826
    val thy_ctxt = ProofContext.init thy;
wenzelm@12706
   827
    val loc = prep_locale (Theory.sign_of thy) raw_loc;
wenzelm@13399
   828
    val (_, view, loc_ctxt, _, _) = cert_context_statement (Some loc) [] [] thy_ctxt;
wenzelm@12706
   829
    val args = map (apsnd (map (apfst (get_thms loc_ctxt)))) raw_args;
wenzelm@13399
   830
    val export = ProofContext.export_standard view loc_ctxt thy_ctxt;
wenzelm@12711
   831
    val results = map (map export o #2) (#2 (ProofContext.have_thmss_i args loc_ctxt));
wenzelm@12706
   832
    val args' = map (rpair [] o #1 o #1) args ~~ map (single o Thm.no_attributes) results;
wenzelm@12706
   833
  in
wenzelm@12706
   834
    thy
wenzelm@12706
   835
    |> put_facts loc args
wenzelm@12706
   836
    |> have_thmss_qualified kind loc args'
wenzelm@12706
   837
  end;
wenzelm@12706
   838
wenzelm@12706
   839
in
wenzelm@12706
   840
wenzelm@12711
   841
val have_thmss = gen_have_thmss intern ProofContext.get_thms;
wenzelm@12711
   842
val have_thmss_i = gen_have_thmss (K I) (K I);
wenzelm@12711
   843
wenzelm@13336
   844
fun add_thmss loc args (thy, ctxt) =
wenzelm@12958
   845
  let
wenzelm@12958
   846
    val args' = map (fn ((a, ths), atts) => ((a, atts), [(ths, [])])) args;
wenzelm@13336
   847
    val thy' = put_facts loc args' thy;
wenzelm@13399
   848
    val {view, ...} = the_locale thy loc;
wenzelm@13399
   849
    val ((ctxt', _), (_, facts')) =
wenzelm@13399
   850
      activate_facts (K I) ((ctxt, view_axioms view), [((loc, []), [Notes args'])]);
wenzelm@13375
   851
  in ((thy', ctxt'), map #1 facts') end;
wenzelm@12702
   852
wenzelm@12706
   853
end;
wenzelm@12063
   854
wenzelm@11896
   855
wenzelm@13336
   856
(* predicate text *)
wenzelm@13336
   857
wenzelm@13375
   858
local
wenzelm@13375
   859
wenzelm@13375
   860
val introN = "intro";
wenzelm@13394
   861
val axiomsN = "_axioms";
wenzelm@13375
   862
wenzelm@13375
   863
fun atomize_spec sign ts =
wenzelm@13375
   864
  let
wenzelm@13375
   865
    val t = Library.foldr1 Logic.mk_conjunction ts;
wenzelm@13375
   866
    val body = ObjectLogic.atomize_term sign t;
wenzelm@13375
   867
    val bodyT = Term.fastype_of body;
wenzelm@13375
   868
  in
wenzelm@13375
   869
    if bodyT = propT then (t, propT, Thm.reflexive (Thm.cterm_of sign t))
wenzelm@13375
   870
    else (body, bodyT, ObjectLogic.atomize_rule sign (Thm.cterm_of sign t))
wenzelm@13375
   871
  end;
wenzelm@13375
   872
wenzelm@13394
   873
fun aprop_tr' n c = (c, fn args =>
wenzelm@13394
   874
  if length args = n then Syntax.const "_aprop" $ Term.list_comb (Syntax.free c, args)
wenzelm@13394
   875
  else raise Match);
wenzelm@13336
   876
wenzelm@13394
   877
fun def_pred bname parms defs ts ts' thy =
wenzelm@13375
   878
  let
wenzelm@13375
   879
    val sign = Theory.sign_of thy;
wenzelm@13375
   880
    val name = Sign.full_name sign bname;
wenzelm@13375
   881
wenzelm@13394
   882
    val (body, bodyT, body_eq) = atomize_spec sign ts';
wenzelm@13394
   883
    val env = Term.add_term_free_names (body, []);
wenzelm@13394
   884
    val xs = filter (fn (x, _) => x mem_string env) parms;
wenzelm@13394
   885
    val Ts = map #2 xs;
wenzelm@13394
   886
    val extraTs = (Term.term_tfrees body \\ foldr Term.add_typ_tfrees (Ts, []))
wenzelm@13394
   887
      |> Library.sort_wrt #1 |> map TFree;
wenzelm@13399
   888
    val predT = map Term.itselfT extraTs ---> Ts ---> bodyT;
wenzelm@13336
   889
wenzelm@13394
   890
    val args = map Logic.mk_type extraTs @ map Free xs;
wenzelm@13394
   891
    val head = Term.list_comb (Const (name, predT), args);
wenzelm@13375
   892
    val statement = ObjectLogic.assert_propT sign head;
wenzelm@13375
   893
wenzelm@13375
   894
    val (defs_thy, [pred_def]) =
wenzelm@13375
   895
      thy
wenzelm@13394
   896
      |> (if bodyT <> propT then I else
wenzelm@13394
   897
        Theory.add_trfuns ([], [], map (aprop_tr' (length args)) (NameSpace.accesses' name), []))
wenzelm@13375
   898
      |> Theory.add_consts_i [(bname, predT, Syntax.NoSyn)]
wenzelm@13375
   899
      |> PureThy.add_defs_i false [((Thm.def_name bname, Logic.mk_equals (head, body)), [])];
wenzelm@13394
   900
wenzelm@13375
   901
    val defs_sign = Theory.sign_of defs_thy;
wenzelm@13375
   902
    val cert = Thm.cterm_of defs_sign;
wenzelm@13375
   903
wenzelm@13394
   904
    val intro = Tactic.prove_standard defs_sign [] [] statement (fn _ =>
wenzelm@13375
   905
      Tactic.rewrite_goals_tac [pred_def] THEN
wenzelm@13375
   906
      Tactic.compose_tac (false, body_eq RS Drule.equal_elim_rule1, 1) 1 THEN
wenzelm@13394
   907
      Tactic.compose_tac (false, Drule.conj_intr_list (map (Thm.assume o cert) ts'), 0) 1);
wenzelm@13375
   908
wenzelm@13375
   909
    val conjuncts =
wenzelm@13399
   910
      Drule.equal_elim_rule1 OF [Thm.symmetric body_eq,
wenzelm@13399
   911
        Tactic.rewrite_rule [pred_def] (Thm.assume (cert statement))]
wenzelm@13375
   912
      |> Drule.conj_elim_precise (length ts);
wenzelm@13394
   913
    val axioms = (ts ~~ conjuncts) |> map (fn (t, ax) =>
wenzelm@13375
   914
      Tactic.prove defs_sign [] [] t (fn _ =>
wenzelm@13375
   915
        Tactic.rewrite_goals_tac defs THEN
wenzelm@13375
   916
        Tactic.compose_tac (false, ax, 0) 1));
wenzelm@13394
   917
  in (defs_thy, (statement, intro, axioms)) end;
wenzelm@13375
   918
wenzelm@13394
   919
fun change_elem _ (axms, Assumes asms) =
wenzelm@13394
   920
      apsnd Notes ((axms, asms) |> foldl_map (fn (axs, (a, spec)) =>
wenzelm@13394
   921
        let val n = length spec
wenzelm@13394
   922
        in (Library.drop (n, axs), (a, [(Library.take (n, axs), [])])) end))
wenzelm@13394
   923
  | change_elem f (axms, Notes facts) = (axms, Notes (map (apsnd (map (apfst (map f)))) facts))
wenzelm@13394
   924
  | change_elem _ e = e;
wenzelm@13394
   925
wenzelm@13394
   926
fun change_elemss axioms elemss = (axioms, elemss) |> foldl_map
wenzelm@13394
   927
  (fn (axms, (id as ("", _), es)) =>
wenzelm@13394
   928
    foldl_map (change_elem (Drule.satisfy_hyps axioms)) (axms, es) |> apsnd (pair id)
wenzelm@13394
   929
  | x => x) |> #2;
wenzelm@13394
   930
wenzelm@13394
   931
in
wenzelm@13375
   932
wenzelm@13394
   933
fun define_preds bname (parms, ((exts, exts'), (ints, ints')), defs) elemss thy =
wenzelm@13394
   934
  let
wenzelm@13394
   935
    val (thy', (elemss', more_ts)) =
wenzelm@13394
   936
      if Library.null exts then (thy, (elemss, []))
wenzelm@13394
   937
      else
wenzelm@13394
   938
        let
wenzelm@13394
   939
          val aname = bname ^ axiomsN;
wenzelm@13394
   940
          val (def_thy, (statement, intro, axioms)) =
wenzelm@13394
   941
            thy |> def_pred aname parms defs exts exts';
wenzelm@13394
   942
          val elemss' = change_elemss axioms elemss @
wenzelm@13394
   943
            [(("", []), [Assumes [((aname, []), [(statement, ([], []))])]])];
wenzelm@13394
   944
        in
wenzelm@13394
   945
          def_thy |> have_thmss_qualified "" aname
wenzelm@13394
   946
            [((introN, [ContextRules.intro_query_global None]), [([intro], [])])]
wenzelm@13394
   947
          |> #1 |> rpair (elemss', [statement])
wenzelm@13394
   948
        end;
wenzelm@13394
   949
    val (thy'', view) =
wenzelm@13394
   950
      if Library.null more_ts andalso Library.null ints then (thy', None)
wenzelm@13394
   951
      else
wenzelm@13394
   952
        let
wenzelm@13394
   953
          val (def_thy, (statement, intro, axioms)) =
wenzelm@13394
   954
            thy' |> def_pred bname parms defs (ints @ more_ts) (ints' @ more_ts);
wenzelm@13399
   955
          val cstatement = Thm.cterm_of (Theory.sign_of def_thy) statement;
wenzelm@13394
   956
        in
wenzelm@13394
   957
          def_thy |> have_thmss_qualified "" bname
wenzelm@13394
   958
            [((introN, [ContextRules.intro_query_global None]), [([intro], [])])]
wenzelm@13399
   959
          |> #1 |> rpair (Some (cstatement, axioms))
wenzelm@13394
   960
        end;
wenzelm@13394
   961
  in (thy'', (elemss', view)) end;
wenzelm@13375
   962
wenzelm@13375
   963
end;
wenzelm@13336
   964
wenzelm@13336
   965
wenzelm@13297
   966
(* add_locale(_i) *)
wenzelm@13297
   967
wenzelm@13297
   968
local
wenzelm@13297
   969
wenzelm@13394
   970
fun gen_add_locale prep_ctxt prep_expr do_pred bname raw_import raw_body thy =
wenzelm@13297
   971
  let
wenzelm@13297
   972
    val sign = Theory.sign_of thy;
wenzelm@13297
   973
    val name = Sign.full_name sign bname;
wenzelm@13297
   974
    val _ = conditional (is_some (get_locale thy name)) (fn () =>
wenzelm@13297
   975
      error ("Duplicate definition of locale " ^ quote name));
wenzelm@13297
   976
wenzelm@13297
   977
    val thy_ctxt = ProofContext.init thy;
wenzelm@13375
   978
    val (((import_ctxt, (import_elemss, _)), (body_ctxt, (body_elemss, _))), text) =
wenzelm@13375
   979
      prep_ctxt raw_import raw_body thy_ctxt;
wenzelm@13375
   980
    val elemss = import_elemss @ body_elemss;
wenzelm@13297
   981
wenzelm@13399
   982
    val (pred_thy, (elemss', view)) =
wenzelm@13394
   983
      if do_pred then thy |> define_preds bname text elemss
wenzelm@13394
   984
      else (thy, (elemss, None));
wenzelm@13375
   985
    val pred_ctxt = ProofContext.init pred_thy;
wenzelm@13399
   986
    val ((ctxt, _), (_, facts)) = activate_facts (K I) ((pred_ctxt, view_axioms view), elemss')
wenzelm@13399
   987
    val export = ProofContext.export_standard (view_statement view) ctxt pred_ctxt;
wenzelm@13297
   988
  in
wenzelm@13375
   989
    pred_thy
wenzelm@13375
   990
    |> have_thmss_qualified "" name (facts |> filter #2 |> map (fn ((a, ths), _) =>
wenzelm@13375
   991
      ((a, []), [(map export ths, [])]))) |> #1
wenzelm@13297
   992
    |> declare_locale name
wenzelm@13399
   993
    |> put_locale name (make_locale view (prep_expr sign raw_import)
wenzelm@13394
   994
        (map (fn e => (e, stamp ())) (flat (map #2 (filter (equal "" o #1 o #1) elemss'))))
wenzelm@13375
   995
        (params_of elemss', map #1 (params_of body_elemss)))
wenzelm@13297
   996
  end;
wenzelm@13297
   997
wenzelm@13297
   998
in
wenzelm@13297
   999
wenzelm@13297
  1000
val add_locale = gen_add_locale read_context intern_expr;
wenzelm@13297
  1001
val add_locale_i = gen_add_locale cert_context (K I);
wenzelm@13297
  1002
wenzelm@13297
  1003
end;
wenzelm@13297
  1004
wenzelm@13297
  1005
wenzelm@12730
  1006
wenzelm@11896
  1007
(** locale theory setup **)
wenzelm@12063
  1008
wenzelm@11896
  1009
val setup =
wenzelm@11896
  1010
 [LocalesData.init];
wenzelm@11896
  1011
wenzelm@11896
  1012
end;