Review Request 128627: avoid crash starting kate with QT_FATAL_WARNINGS=1

[David Faure]

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I don't get it, how can there be no lineedit in a KUrlRequester? Is this simply called too early?

- David Faure


On Aug. 8, 2016, 7:38 a.m., Jaime Torres Amate wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/128627/
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> 
> (Updated Aug. 8, 2016, 7:38 a.m.)
> 
> 
> Review request for KDE Frameworks.
> 
> 
> Repository: kio
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> 
> Description
> -------
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> avoid connecting KUrl from null
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> 
> Diffs
> -----
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>   src/widgets/kurlrequester.cpp 77e7c1d 
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> Diff: https://git.reviewboard.kde.org/r/128627/diff/
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> 
> Testing
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> 
> before the patch, there was 4 connect(null, .....), that crashed within:
> 
> #0  0x00007ffff441f975 in __GI_raise (sig=sig at entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
> #1  0x00007ffff4420d8a in __GI_abort () at abort.c:78
> #2  0x00007ffff50ca6e5 in QMessageLogger::warning(char const*, ...) const (context=..., message=...)
>     at global/qlogging.cpp:1648
> #3  0x00007ffff50ca6e5 in QMessageLogger::warning(char const*, ...) const (this=this at entry=0x7fffffffc270, msg=msg at entry=0x7ffff5412a58 "QObject::connect: invalid null parameter") at global/qlogging.cpp:557
> #4  0x00007ffff52ec011 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) (sender=sender at entry=0x0, signal_index=<optimized out>, receiver=receiver at entry=0xb7c970, slot=slot at entry=0x7fffffffc420, slotObj=slotObj at entry=0xb58500, type=Qt::AutoConnection, types=0x0, senderMetaObject=0x7ffff6a81900 <QLineEdit::staticMetaObject>) at kernel/qobject.cpp:4674
> #5  0x00007ffff52ec2d2 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) (sender=sender at entry=0x0, signal=signal at entry=0x7fffffffc410, receiver=receiver at entry=0xb7c970, slot=slot at entry=0x7fffffffc420, slotObj=0xb58500, type=Qt::AutoConnection, types=0x0, senderMetaObject=0x7ffff6a81900 <QLineEdit::staticMetaObject>)
>     at kernel/qobject.cpp:4658
> #6  0x00007ffff7ef2465 in KUrlRequester::KUrlRequesterPrivate::init() (type=Qt::AutoConnection, slot=
>     (void (KUrlRequester::*)(KUrlRequester * const, const QString &)) 0x7ffff7eee1c0 <KUrlRequester::textChanged(QString const&)>, receiver=0xb7c970, signal=
>     (void (QLineEdit::*)(QLineEdit * const, const QString &)) 0x7ffff64d34b0 <QLineEdit::textChanged(QString const&)>, sender=0x0) at /usr/include/qt5/QtCore/qobject.h:239
> 
> applying the patch, kate starts (there is no connect from null)
> 
> 
> Thanks,
> 
> Jaime Torres Amate
> 
>

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