<table><tr><td style="">kossebau added a comment.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D15326">View Revision</a></tr></table><br /><div><div><p>I have seen related crashes, and think I understand the basic reasoning. Sadly right now I fail to reproduce the crashes though, no idea why, so I am also unsure if I understood the problem :)<br />
So just leaving initial comments, to be corrected during discussion.</p></div></div><br /><div><strong>INLINE COMMENTS</strong><div><div style="margin: 6px 0 12px 0;"><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D15326#inline-83161">View Inline</a><span style="color: #4b4d51; font-weight: bold;">outputwidget.cpp:204</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #74777d">// QSharedPointer destructor.</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">m_views</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
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<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">Isn't m_views destroyed (and thus implicitely cleared) before reaching the ~QWidget and ~QObject destructors where then any QObject-child-tree memory management is done?<br />
So do we really need to explicitly call this here?</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D15326#inline-83163">View Inline</a><span style="color: #4b4d51; font-weight: bold;">outputwidget.cpp:209</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #74777d">// such call.</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">delete</span> <span class="n">m_tabwidget</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">delete</span> <span class="n">m_stackwidget</span><span class="p">;</span>
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<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">This here might be more the actual issue, preventing the updateFilter slot being invoked during destruction because tabwidget or stackwidget emitting signals on their subwidgets being removed,</p>
<p style="padding: 0; margin: 8px;">Not sure what is the better approach, only disconnecting from the currentChanged signals or straight deleting the widgets. Personally I tend to only handle the connections, and leave memory management of widgets completly to the Qt internals.</p></div></div></div></div></div><br /><div><strong>REPOSITORY</strong><div><div>R32 KDevelop</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D15326">https://phabricator.kde.org/D15326</a></div></div><br /><div><strong>To: </strong>antonanikin, KDevelop<br /><strong>Cc: </strong>kossebau, vkorneev, kdevelop-devel, antismap, iodelay, vbspam, geetamc, Pilzschaf, akshaydeo, surgenight, arrowd<br /></div>