Subject: 24.0.50; cc-mode does not indent Qt class correctly

From: Christoph Scholtes <[email-masked]>
Date: Sun, 18 Sep 2011 09:12:22 -0600

With the latest emacs trunk, from `emacs -Q' open *.hpp file with this
content:

class Counter : public QObject
{
  Q_OBJECT

  public:
  Counter() { m_value = 0; }

  int value() const { return m_value; }

public slots:
  void setValue(int value);

signals:
  void valueChanged(int newValue);

private:
  int m_value;
};

Note, that the first access modifier `public' is not indented
properly. All Qt other extension modifiers are indented correctly.

The indentation should look like this:

class Counter : public QObject
{
  Q_OBJECT

public:
  Counter() { m_value = 0; }

[snip]

The indentation works correctly when the `Q_OBJECT' macro is
removed. Since cc-mode does support the Qt extensions, it should
also correctly indent this class with the `Q_OBJECT' macro present.

In GNU Emacs 24.0.50.1 (i386-mingw-nt6.1.7601)
 of 2011-09-17 on MARVIN
Windowing system distributor `Microsoft Corp.', version 6.1.7601
configured using `configure --with-gcc (4.5) --no-opt --cflags -I"C:/Program Files (x86)/GnuWin32/include" -ID:/devel/emacs/libXpm-3.5.8/include -ID:/devel/emacs/libXpm-3.5.8/src -ID:/devel/emacs/gnutls-2.10.5-x86/include --ldflags -LD:/devel/emacs/gnutls-2.10.5-x86/lib'

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: ENU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  paredit-mode: t
  my-keys-minor-mode: t
  erc-autojoin-mode: t
  erc-track-mode: t
  erc-match-mode: t
  erc-pcomplete-mode: t
  erc-stamp-mode: t
  recentf-mode: t
  desktop-save-mode: t
  autopair-mode: t
  autopair-global-mode: t
  ido-everywhere: t
  yas/global-mode: t
  yas/minor-mode: t
  global-auto-revert-mode: t
  delete-selection-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  size-indication-mode: t
  column-number-mode: t
  line-number-mode: t

Recent input:
M-x c c - m o d e <tab> <tab> <tab> <backspace> <backspace> 
<backspace> <backspace> <tab> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
r e o <backspace> p o r t - b u <tab> <tab> <tab> <tab> 
<tab> <backspace> <backspace> <backspace> C-g C-t C-/ 
M-x r e p o r t <tab> <return>

Recent messages:
Quit
Undo!
Loading system routine info in idle time...
Failed to convert XML routine info, falling back on idlw-rinfo.
Could not locate any system routine information.
Loading system routine info in idle time...done
Normalizing idlwave-system-routines in idle time...done
Loading and normalizing library catalogs in idle time...done
Finishing initialization in idle time...
Scanning all buffers...

Load-path shadows:
None found.

Features:
(shadow sort gnus-cite mail-extr gnus-msg gnus-art mm-uu mml2015
epg-config mm-view mml-smime smime password-cache dig mailcap emacsbug
idlwave imenu idlwave-help idlw-help browse-url cc-mode cc-fonts
cc-guess cc-menus cc-cmds vc-hg paredit my-zenburn-theme erc-join
erc-track erc-match erc-pcomplete erc-stamp erc-goodies erc erc-backend
erc-compat thingatpt ispell bookmark+ bookmark+-key dired-x dired
bookmark+-1 nnir gnus-sum nnoo gnus-group gnus-undo nnmail mail-source
gnus-start gnus-spec gnus-int gnus-range message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045
ietf-drums mailabbrev gmm-utils mailheader gnus-win gnus gnus-ems
nnheader gnus-util mail-utils mm-util mail-prsvr bookmark+-bmu help-mode
view bookmark+-lit pp+ bookmark+-mac bookmark pp recentf tree-widget
wid-edit midnight desktop ibuffer uniquify autopair google-c-style
cc-styles cc-align cc-engine cc-vars cc-defs browse-kill-ring+
browse-kill-ring second-sel ido yasnippet dropdown-list derived edmacro
kmacro assoc cl org-habit org-agenda org byte-opt warnings bytecomp
byte-compile cconv macroexp ob-emacs-lisp ob-tangle ob-ref ob-lob
ob-table org-footnote org-src ob-comint comint ring ob-keys ob ob-eval
org-pcomplete pcomplete org-list org-faces org-compat org-entities
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calendar cal-loaddefs org-install server advice help-fns advice-preload
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base64 format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process multi-tty emacs)