src/Pure/Thy/thm_deps.ML
author berghofe
Thu Oct 07 11:36:39 1999 +0200 (1999-10-07)
changeset 7765 fa28bac7903c
child 7783 9ace4017ead8
permissions -rw-r--r--
New function thm_deps for visualizing dependencies of theorems.
     1 (*  Title:      Pure/Thy/thm_deps.ML
     2     ID:         $Id$
     3     Author:     Stefan Berghofer, TU Muenchen
     4 
     5 Visualize dependencies of theorems.
     6 *)
     7 
     8 signature THM_DEPS =
     9 sig
    10   val thm_deps: thm list -> unit
    11 end;
    12 
    13 structure ThmDeps : THM_DEPS =
    14 struct
    15 
    16 fun get_sess thy = if Theory.eq_thy (thy, ProtoPure.thy) then ["Pure"]
    17   else
    18     (case #session (Present.get_info thy) of
    19         [x] => [x, "base"]
    20       | xs => xs);
    21 
    22 fun put_graph gr path =
    23     File.write path (cat_lines (map (fn {name, ID, dir, unfold, path, parents} =>
    24       "\"" ^ name ^ "\" \"" ^ ID ^ "\" \"" ^ dir ^ (if unfold then "\" + \"" else "\" \"") ^
    25       path ^ "\" > " ^ space_implode " " (map quote parents) ^ " ;") gr));
    26 
    27 fun is_thm_axm (Theorem _) = true
    28   | is_thm_axm (Axiom _) = true
    29   | is_thm_axm _ = false;
    30 
    31 fun get_name (Theorem (s, _)) = s
    32   | get_name (Axiom (s, _)) = s
    33   | get_name _ = "";
    34 
    35 fun make_deps_graph ((gra, parents), Join (ta, ders)) =
    36   let
    37     val name = get_name ta;
    38   in
    39     if is_thm_axm ta then
    40       if is_none (Symtab.lookup (gra, name)) then
    41         let
    42           val (gra', parents') = foldl make_deps_graph ((gra, []), ders);
    43           val prefx = rev (tl (rev (NameSpace.unpack name)));
    44           val session = (case prefx of
    45                (x :: _) => (case ThyInfo.lookup_theory x of
    46                      (Some thy) => get_sess thy
    47                    | None => [])
    48              | _ => ["global"])
    49         in
    50           (Symtab.update_new ((name,
    51             {name = Sign.base_name name, ID = name,
    52              dir = space_implode "/" (session @ prefx),
    53              unfold = false, path = "", parents = parents'}), gra'), name ins parents)
    54         end
    55       else (gra, name ins parents)
    56     else
    57       foldl make_deps_graph ((gra, parents), ders)
    58   end;
    59 
    60 fun thm_deps thms =
    61   let
    62     val _ = writeln "Generating graph ...";
    63     val gra = map snd (Symtab.dest (fst (foldl make_deps_graph ((Symtab.empty, []),
    64       map (#der o rep_thm) thms))));
    65     val path = File.tmp_path (Path.unpack "theorems.graph");
    66     val _ = put_graph gra path;
    67     val _ = execute ("isatool browser -d " ^ Path.pack (Path.expand path) ^ " &");
    68   in () end;
    69 
    70 end;
    71 
    72 open ThmDeps;