[Development] Json support for QtCore

[Ben Lau]

On Sun, Dec 11, 2011 at 8:31 AM, Robin Burchell <robin+qt at viroteck.net>wrote:

> hi,
>
> On Sat, Dec 10, 2011 at 10:32 PM,  <lars.knoll at nokia.com> wrote:
> > I've benchmarked parsing speed and compared to the qjson
> > (http://qjson.sourceforge.net/). It's around 7 times faster for the
> > test.json file included in the project (the test case used in qjson as
> > well).
>
> I'd be interested to see how your parser fares compared to girish's
> work (existing benchmark results, somewhat outdated probably, found at
>
> http://git.forwardbias.in/?p=qjsonparser.git;a=commit;h=180f3a1ea85adbea4d77e50ff3be3e75af918252
> )
> - those results at least look a lot better than 7 times faster, but
> they are also probably different test data.
>
> But, parser aside: in general terms, I do think I agree that
> converting to/from QVariant as an "API" isn' all that nice, so your
> approach is a nice alternative.
>
> I do think I'd like to see QDataStream operators on QJsonDocument,
> btw. sending json documents in binary form to/from files or sockets
> would be useful.
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A side chat about the stream operation. I have made a tiny project / class
to help to convert a non-QObject based class to QVariantMap , and vice
versa easily . So that it could be converted to JSON/XML/YAML by just
taking a further step.

http://www.qtcentre.org/threads/46315-QtMapStream-serialization-of-object-class-to-QVariantMap
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