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ada-mode list references prefix arg (to append references) broken


From: Philippe Waroquiers
Subject: ada-mode list references prefix arg (to append references) broken
Date: Thu, 9 Aug 2007 12:35:05 +0200 (METDST)

How to reproduce:
 compile an Ada file with gcc gnat compiler
 open this Ada file
 position on an identifier 
 C-c l   (list local references)
 position on another identifier
 C-u C-c l (list local references, but asking to add to the ref list
            by using the C-u prefix argument)

with emacs 21: the second list of references is appended 
with emacs 22: the second list of references replaces instead of appending

To fix the bug:

Add the below function in front of ada-find-any-references:
***********************************************************

(defun gnatfind-buffer-name (mode)
  "Returns the name of the buffer to list Ada references"
  "*gnatfind*")

Replace the end of ada-find-any-references by:
**********************************************

    (let ((compilation-error "reference"))
      (compilation-start command 'compilation-mode 'gnatfind-buffer-name))

    ;;  Hide the "Compilation" menu
    (save-excursion
      (set-buffer "*gnatfind*")
      (local-unset-key [menu-bar compilation-menu])

      (if old-contents
          (progn
            (goto-char 1)
            (set 'buffer-read-only nil)
            (insert old-contents)
            (set 'buffer-read-only t)
            (goto-char (point-max)))))
    )
  )



In GNU Emacs 22.1.1 (hppa1.1-hp-hpux11.11, Motif Version 2.1.0)
 of 2007-08-04 on bobcat
Windowing system distributor `Hewlett-Packard Company', version 11.0.600000
configured using `configure  'hppa1.1-hp-hpux11.11' 
'--prefix=/cm/ot/TOOL/GNU!12.43/build_G!67.IP.11/generated' 
'--exec-prefix=/cm/ot/TOOL/GNU!12.43/build_G!67.IP.11/generated/libexec/emacs-22.1'
 '--mandir=/cm/ot/TOOL/GNU!12.43/build_G!67.IP.11/generated/man' 
'--with-gcc=no' '--with-xpm' '--with-x11r6' '--with-x-toolkit=motif' 
'--x-libraries=/usr/lib/X11R6:/usr/contrib/X11R6/lib' 
'build_alias=hppa1.1-hp-hpux11.11' 'host_alias=hppa1.1-hp-hpux11.11' 
'target_alias=hppa1.1-hp-hpux11.11' 'CFLAGS=-g -Ae +O0 +DA1.1' 'LDFLAGS= 
-L/cm/ot/TOOL/GNU!12.43/build_G!67.IP.11/generated/work/emacs-22.1/xpm-3.4k/lib'
 
'CPPFLAGS=-I/cm/ot/TOOL/GNU!12.43/build_G!67.IP.11/generated/work/emacs-22.1/xpm-3.4k
 ''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: nil
  default-enable-multibyte-characters: nil

Major mode: Text

Minor modes in effect:
  iswitchb-mode: t
  show-paren-mode: t
  which-function-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t

Recent input:
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> + SPC 
t h e SPC e n d SPC o f SPC a d a - f i n d - a n y 
- r e f e r e n c e s SPC m u s t SPC b e : <return> 
<return> C-y <down-mouse-1> <mouse-movement> <mouse-movement> 
<drag-mouse-1> <down-mouse-1> <mouse-movement> <mouse-movement> 
<drag-mouse-1> <down-mouse-1> <mouse-movement> <drag-mouse-1> 
<down-mouse-1> <mouse-1> <backspace> SPC ( I SPC w 
i l l , SPC l i k e SPC t h e SPC c o r e SPC d u m 
p SPC o n <backspace> <backspace> w i t h SPC u n s 
e t SPC D I S P L A Y ) <return> r e p o r t SPC i 
t SPC i t <backspace> <backspace> <backspace> <backspace> 
<backspace> t h e SPC b u g SPC t o SPC t h e SPC e 
m a c s SPC m a i n t a i n e r . <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> C-a C-SPC <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> M-w C-x b C-g C-x 
C-f ~ / n o <tab> b r o l / a d a - m o d e - b u g 
. t x t <return> C-y C-x b <return> C-x # y <help-echo> 
<help-echo> <down-mouse-1> <mouse-1> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar> 
<help-menu> <report-emacs-bug>

Recent messages:
Auto-saving...done
Mark set
Auto-saving...
Mark set
Quit
(New file)
Mark set
Save file /tmp/snd.24993? (y or n) 
Wrote /tmp/snd.24993
Loading emacsbug...done


-- 
Philippe WAROQUIERS                  Eurocontrol - Central Flow Management Unit
address@hidden  Rue de la fusee, 96
Tel: +32 2 729 97 35                 1130 Brussels
Fax: +32 2 729 90 22                 Belgium
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