c++ code completion status report

Falk Brettschneider gigafalk at yahoo.com
Fri Jan 4 15:55:04 UTC 2002


I don't know exactly if I can help you but I've once written a XML 
Input/Output class on top of QDOM classes. It behaves almost equal like 
QSettings, which means you write values to pathes in the tree.

F at lk

Richard Dale wrote:

>On Thursday 03 January 2002 10:55 pm, ian reinhart geiser wrote:
>>On Thursday 03 January 2002 17:34, you wrote about Re: c++ code completion
>>status report:
>>>I heart on an oter list that gcc 3.x.x support a XML output of the class
>>>member like the database of VC++ when it compile some source. Maybe
>>>that's is also a way to go?
>>no it is not, because it knows nothing of signals and slots
>>ideally the ONLY parser that is aware of this and has XML output is
>>doxygen. I was able to write  a "object" viewer of my code using Doxygen
>>and QDOM in about 150 lines and it was reasonably fast ( 15 classes each
>>with 5-6 functions) in about 4 seconds on a Athlon 800.  The time seemed
>>split between the parseing and the XML rendering.  I left it at that but
>>ideally if you talke VERY nicely to the Doxygen  guy you may be able to use
>>his parser and then just create a QDOM object, then use that accordingly
>>DOMS are expensive to create from what i have found but once you have one
>>they are very fast. Basicly they are dictonary data structures.  If you
>>could use doxygen's parser to create a DOM you are about 90% of the way
>>there.  The other 10% ( the UI ) i have no clue about, since all i wanted
>>was a robust class veiw and I stopped there.
>The Qt moc tool is gpl'd and has a yacc grammar with slots/signals parsing. 
>I've just been looking at Borland's hacked version they used to generate 
>their Pascal/Qt bindings for Kylix, so it can be adapted to other uses quite 
>KDE Studio uses QDom for its class store - I did a brief comparison between 
>Studio and KDevelop and found that KDevelop was slightly faster (Bernd also 
>thought QDom would use more memory, but I didn't measure that). Much more 
>time was spent parsing than writing to the class store in both IDE's. Would a 
>be a good idea to profile gideon when it parses the source files for a 
>project? Then we would know whether the time is going on lexical analyis, 
>parsing or class store writes? John Birch did some measurements on KDevelop 
>2.0 a while ago and found that the lexer was taking most of the mill. 
>But why do we need a persistant class store anyway, using xml or otherwise? On 
>startup, will it determine which source files have changed since the class 
>store was last written to, and only parse those?
>-- Richard
>Kdevelop-devel mailing list
>Kdevelop-devel at barney.cs.uni-potsdam.de

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