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List:       kde-core-devel
Subject:    Re: A New Krazy Checker for Classes Requiring Q_OBJECT
From:       "Thiago Macieira" <thiago () kde ! org>
Date:       2007-05-11 9:46:35
Message-ID: 1130.172.26.0.1.1178876795.squirrel () 172 ! 26 ! 0 ! 1
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Tom Albers said:
> At Friday 11 May 2007 01:05, you wrote:
>> Tonight's Krazy run will start looking for QObject derived classes
>> that are without the Q_OBJECT macro.  This new checker was written
>> by  Thorsten Roeder.
>
> I thought that was only needed when there are signals or slots?
>
> Toma

The test only checks direct derivation from QObject. If you don't need any
of the Meta Object features (properties, signals, slots, enums, className,
qobject_cast, the meta object itself, etc.) why are you deriving from
QObject in the first place? :-)

QObjects are heavy: if you don't need any of those features, you shouldn't
derive from it.

Arguably, there might be a reason to derive in the QObject hierarchy
without including a Q_OBJECT macro, for instance to access a protected
member function, etc. But I don't believe it exists for direct QObject
derivation.

-- 
  Thiago Macieira  -  thiago (AT) macieira.info - thiago (AT) kde.org
    PGP/GPG: 0x6EF45358; fingerprint:
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