[Qt-creator] Clang Code Model Questions

[Cristian Adam]

On 11/18/2015 6:10 PM, Mike Jackson wrote:
>
> The wait cursor does not appear when looking at the QtCreator code 
> base at the file you specified. I could still type cppModelManager 
> before the completion list would pop up for “cppModelManager”. Typing 
> a “->” after that was about a 0.5 second delay for the completion list 
> to pop up. I strung together a few more completions and they were 
> relatively “fast” (around a second to get the completion list). never 
> saw the spinning beach ball with any of that.
>
> In our codes we are including boost in a few spots and if I had to 
> guess the templates might be what is holding up the clang back end? 
> Otherwise our code bases are similar on a total files and current 
> document basis.
>
> Thoughts?
>
> Mike Jackson
>

Try Lyx <http://www.lyx.org/> from their git repository. Lyx uses Boost, 
Qt5 and more.
My CMake configure parameters were:
-DLYX_DEPENDENCIES_DOWNLOAD -DLYX_USE_QT=QT5 
-DCMAKE_PREFIX_PATH=c:\Qt\Qt5.5.1\5.5\msvc2013\lib\cmake\

Global/Indexing Snapshot : 2558 Documents
Current Editor's Snapshot (Text3.cpp) : 785 Documents.

Went to the last method in Text3.cpp – Text::inDescriptionItem and added 
a "this->". Took like ~6 seconds to
get the popup (older i7 2.6GHz CPU). During the ~6 seconds I didn't see 
any Windows wait cursor.

On Qt Creator master on every "this->" I get like ~6 seconds.

With Qt Creator 3.5.1 the first time is slow the next times are way 
faster, like one second.

This is a regression and I've opened up QTCREATORBUG-15365 
<https://bugreports.qt.io/browse/QTCREATORBUG-15365>

Cheers,
Cristian.
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