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* Re: Dead code removal / cross references
@ 1994-11-11 19:18 Doug Currie, Flavors Technology, Inc.
  0 siblings, 0 replies; 3+ messages in thread
From: Doug Currie, Flavors Technology, Inc. @ 1994-11-11 19:18 UTC (permalink / raw)
  To: Judicael Courant; +Cc: Pierre.Weis

>called/used ? which modules are used by this one ? is this #open
>really necessary ?) and detect and remove the useless #open and the
>dead code. Does such a tool exists ?

Here is a small piece of what you need...

(* usedmodu.ml *)
(* Copyright ) e, 1994. All rights reserved.
        This code may be freely distributed as long as this notice remains.
*)

(* To read a file, and return the list of the modules used *)

let letter_p c =
  let x = int_of_char c in
    ((x > 0x40) & (x < 0x5b)) or ((x > 0x60) & (x < 0x7b))
;;

let identchp c =
  let x = int_of_char c in
    ((x > 0x40) & (x < 0x5b))
 or ((x > 0x60) & (x < 0x7b))
 or ((x > 0x2f) & (x < 0x3a))
;;

let sm ic =
  let buf = create_string 1024 in
  let mds = ref [] in
  let addm i =
    let m = (sub_string buf 0 i) in
      if mem m !mds
        then ()
        else mds := (m :: !mds) in
  let
  rec s0 () = (* eat whitespace *)
    while (*
          match input_char ic with
            ` ` | `\n` | `\r` | `\t` -> true
          | c -> set_nth_char buf 0 c; false
          *)
          let c = input_char ic in
            if (letter_p c) or (c = `#`)
            then begin set_nth_char buf 0 c; false end
            else true
    do () done;
    s1 1
  and s1 i = (* get token *)
    match input_char ic with
    (*
      ` ` | `\n` | `\r` | `\t` -> s5 i
    | *)
      `_` -> begin
               match input_char ic with
                  `_` -> s2 i
               | c -> let j = (succ i) in
                        set_nth_char buf i `_`;
                        set_nth_char buf j c;
                        s1 (succ j)
             end
    | c -> if identchp c
           then begin set_nth_char buf i c; s1 (succ i) end
           else s5 i
  and s2 i = (* record module, eat non-whsp *)
    addm i;
    while match input_char ic with
            ` ` | `\n` | `\r` | `\t` -> false
          | c -> true
    do () done;
    s0 ()
  and s5 i = (* look for #open *)
    if (i = 5) &
       ((nth_char buf 0) = `#`) &
       ((nth_char buf 1) = `o`) &
       ((nth_char buf 2) = `p`) &
       ((nth_char buf 3) = `e`) &
       ((nth_char buf 4) = `n`)
    then
      begin
        while (input_char ic) != `"` do () done;
        let rec f i =
                  let c = input_char ic in
                    if c = `"`
                    then addm i
                    else begin set_nth_char buf i c; f (succ i) end in
           f 0;
        s0 ()
      end
    else s0 ()
  in
  try
    s0 ()
  with End_of_file ->
    rev !mds
;;

let modules_used_by_file filename =
  let ic = open_in filename in
  let res = sm ic in
  close_in ic;
  res
;;

(* ********************************************* *)






^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Dead code removal / cross references
  1994-11-10  8:11 Judicael Courant
@ 1994-11-14 10:38 ` Xavier Leroy
  0 siblings, 0 replies; 3+ messages in thread
From: Xavier Leroy @ 1994-11-14 10:38 UTC (permalink / raw)
  To: Judicael Courant; +Cc: caml-list

> j'aimerais disposer d'outils permettant d'avoir des
> références croisées

> quels modules sont utilisés par tel module ?
La distribution contient un script (src/runtime/camldep) qui produit
des listes de dependances pour make. Essentiellement, il determine
quels modules sont references (via #open ou la notation __) dans un
fichier source. Cet outil n'est pas 100% exact (p.ex. le code mis en
commentaires n'est pas ignore), mais fait l'affaire pour un Makefile.

> ou est définie telle fonction ?
L'outil mletags (contrib/mletags dans la distribution) fait a peu pres
ca. Il construit un "tag file" pour Emacs qui indexe les definitions
de globaux.

> ou est appelée telle fonction ?
Les fonctions etant des valeurs de premiere classe, la reponse exacte
a cette question est difficile.

> détecter et éliminer les #open inutiles
Ca serait utile, en effet, mais ca n'est pas facile.

> et le code mort (relativement a un ou des fichiers donnés).
Le linker elimine le code des phrases qui definissent des globaux
jamais references (pourvu que ces phrases n'aient evidemment pas
d'effets de bord). 

- Xavier Leroy




^ permalink raw reply	[flat|nested] 3+ messages in thread

* Dead code removal / cross references
@ 1994-11-10  8:11 Judicael Courant
  1994-11-14 10:38 ` Xavier Leroy
  0 siblings, 1 reply; 3+ messages in thread
From: Judicael Courant @ 1994-11-10  8:11 UTC (permalink / raw)
  To: caml-list

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1057 bytes --]

Bonjour,

travaillant sur un projet en camllight assez imposant (plus de 170
fichiers .ml), j'aimerais disposer d'outils permettant d'avoir des
références croisées (ou est définie telle fonction ? ou est appelée
telle fonction ? quels modules sont utilisés par tel module ? ce #open
est-il bien nécessaire ?), et permettant de détecter et d'éliminer lés
#open inutiles et le code mort (relativement a un ou des fichiers
donnés). De tels outils existent-ils ?

Merci.

--------------------------------------

Hello,

working on a quite large project written in camllight (more than 170
.ml files), I would like to have a tool that would generate some
cross-references (where is this function/type defined ? where is it
called/used ? which modules are used by this one ? is this #open
really necessary ?) and detect and remove the useless #open and the
dead code. Does such a tool exists ?

Thanks.

-- 
Judicaël COURANT           tel. : 72 72 85 82
ENSL - LIP                 email : Judicael.Courant@ens-lyon.fr
46, allée d'Italie
69364 Lyon cedex 07
--




^ permalink raw reply	[flat|nested] 3+ messages in thread

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Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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1994-11-11 19:18 Dead code removal / cross references Doug Currie, Flavors Technology, Inc.
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1994-11-10  8:11 Judicael Courant
1994-11-14 10:38 ` Xavier Leroy

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