src/Pure/Thy/thm_deps.ML
author wenzelm
Sun, 16 Nov 2008 22:12:44 +0100
changeset 28817 c8cc94a470d4
parent 28814 463c9e9111ae
child 28826 3b460b6eadae
permissions -rw-r--r--
proof_body/pthm: removed redundant types field;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
7765
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     1
(*  Title:      Pure/Thy/thm_deps.ML
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     2
    ID:         $Id$
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     3
    Author:     Stefan Berghofer, TU Muenchen
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     4
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     5
Visualize dependencies of theorems.
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     6
*)
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     7
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     8
signature THM_DEPS =
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
     9
sig
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    10
  val thm_deps: thm list -> unit
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    11
  val unused_thms: theory list * theory list -> (string * thm) list
7765
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    12
end;
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    13
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    14
structure ThmDeps: THM_DEPS =
7765
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    15
struct
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    16
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    17
(* thm_deps *)
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    18
28817
c8cc94a470d4 proof_body/pthm: removed redundant types field;
wenzelm
parents: 28814
diff changeset
    19
fun add_dep (name, _, PBody {thms = thms', ...}) =
28810
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    20
  name <> "" ?
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    21
    Graph.new_node (name, ()) #>
28817
c8cc94a470d4 proof_body/pthm: removed redundant types field;
wenzelm
parents: 28814
diff changeset
    22
    fold (fn (_, (name', _, _)) => name <> "" ? Graph.add_edge (name', name)) thms';
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    23
7765
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    24
fun thm_deps thms =
28810
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    25
  let
28814
463c9e9111ae clarified Thm.proof_body_of vs. Thm.proof_of;
wenzelm
parents: 28810
diff changeset
    26
    val graph = Proofterm.fold_body_thms add_dep (map Thm.proof_body_of thms) Graph.empty;
28810
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    27
    fun add_entry (name, (_, (preds, _))) =
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    28
      let
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    29
        val prefix = #1 (Library.split_last (NameSpace.explode name));
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    30
        val session =
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    31
          (case prefix of
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    32
            a :: _ =>
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    33
              (case ThyInfo.lookup_theory a of
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    34
                SOME thy =>
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    35
                  (case Present.session_name thy of
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    36
                    "" => []
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    37
                  | session => [session])
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    38
              | NONE => [])
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    39
           | _ => ["global"]);
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    40
        val entry =
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    41
          {name = Sign.base_name name,
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    42
           ID = name,
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    43
           dir = space_implode "/" (session @ prefix),
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    44
           unfold = false,
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    45
           path = "",
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    46
           parents = preds};
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    47
      in cons entry end;
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    48
  in Present.display_graph (sort_wrt #ID (Graph.fold add_entry graph [])) end;
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    49
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    50
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    51
(* unused_thms *)
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    52
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    53
fun unused_thms (base_thys, thys) =
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    54
  let
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    55
    fun add_fact (name, ths) =
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    56
      if exists (fn thy => PureThy.defined_fact thy name) base_thys then I
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    57
      else fold_rev (fn th => (case Thm.get_name th of "" => I | a => cons (a, th))) ths;
26699
6c7e4d858bae unused_thms: sort_distinct;
wenzelm
parents: 26697
diff changeset
    58
    val thms =
6c7e4d858bae unused_thms: sort_distinct;
wenzelm
parents: 26697
diff changeset
    59
      fold (Facts.fold_static add_fact o PureThy.facts_of) thys []
6c7e4d858bae unused_thms: sort_distinct;
wenzelm
parents: 26697
diff changeset
    60
      |> sort_distinct (string_ord o pairself #1);
28810
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    61
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    62
    val tab = Proofterm.fold_body_thms
28817
c8cc94a470d4 proof_body/pthm: removed redundant types field;
wenzelm
parents: 28814
diff changeset
    63
      (fn (name, prop, _) => name <> "" ? Symtab.insert_list (op =) (name, prop))
28814
463c9e9111ae clarified Thm.proof_body_of vs. Thm.proof_of;
wenzelm
parents: 28810
diff changeset
    64
      (map (Proofterm.strip_thm o Thm.proof_body_of o snd) thms) Symtab.empty;
28810
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    65
    fun is_unused (name, th) =
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    66
      not (member (op aconv) (Symtab.lookup_list tab name) (Thm.prop_of th));
e915ab11fe52 retrieve thm deps from proof_body;
wenzelm
parents: 27865
diff changeset
    67
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    68
    (* groups containing at least one used theorem *)
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    69
    val grps = fold (fn p as (_, thm) => if is_unused p then I else
27865
27a8ad9612a3 moved basic thm operations from structure PureThy to Thm (cf. more_thm.ML);
wenzelm
parents: 26699
diff changeset
    70
      case Thm.get_group thm of
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    71
        NONE => I | SOME grp => Symtab.update (grp, ())) thms Symtab.empty;
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    72
    val (thms', _) = fold (fn p as (s, thm) => fn q as (thms, grps') =>
27865
27a8ad9612a3 moved basic thm operations from structure PureThy to Thm (cf. more_thm.ML);
wenzelm
parents: 26699
diff changeset
    73
      if member (op =) [Thm.theoremK, Thm.lemmaK, Thm.corollaryK, Thm.axiomK] (Thm.get_kind thm)
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    74
        andalso is_unused p
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    75
      then
27865
27a8ad9612a3 moved basic thm operations from structure PureThy to Thm (cf. more_thm.ML);
wenzelm
parents: 26699
diff changeset
    76
        (case Thm.get_group thm of
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    77
           NONE => (p :: thms, grps')
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    78
         | SOME grp =>
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    79
             (* do not output theorem if another theorem in group has been used *)
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    80
             if Symtab.defined grps grp then q
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    81
             (* output at most one unused theorem per group *)
26697
3b9eede40608 removed obsolete BASIC_THM_DEPS;
wenzelm
parents: 26185
diff changeset
    82
             else if Symtab.defined grps' grp then q
26185
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    83
             else (p :: thms, Symtab.update (grp, ()) grps'))
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    84
      else q) thms ([], Symtab.empty)
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    85
  in rev thms' end;
e53165319347 Added function for finding unused theorems.
berghofe
parents: 26138
diff changeset
    86
7765
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    87
end;
fa28bac7903c New function thm_deps for visualizing dependencies of theorems.
berghofe
parents:
diff changeset
    88