[Development] Deprecating modules with 5.5

Jaroslaw Staniek staniek at kde.org
Thu Feb 5 23:08:03 CET 2015

On 5 February 2015 at 16:44, Simon Hausmann
<simon.hausmann at theqtcompany.com> wrote:
> On Thursday 5. February 2015 16.32.08 Jaroslaw Staniek wrote:
>> On 3 February 2015 at 09:50, Hausmann Simon
>> <Simon.Hausmann at theqtcompany.com> wrote:
>> > Hi,
>> >
>> > Functionality wise, what type of "class" do you wrap with QScriptClass?
>> Examples (you can guess from what project by looking at my footer):
>> - Light data types (anything you see in databases and isn't mapping to
>> javascript types). Long long?
>> - Any very numerious non-QObject objects or calculated entities and/or
>> properties that have no their structures at all. Thing about a
>> database record  accessible by record.<fieldname>.
> For those, would the new value type bindings be a sufficient replacement?
> See also
> http://doc-snapshot.qt-project.org/qt5-dev/qtqml-cppintegration-data.html#value-types
> Once your type is a Q_GADGET you should be able to make a copy of it visible in JavaScript as easy as
> QJSValue value = engine.toScriptValue(myValueType);

Thanks, I'll analyze that. Quick look make me unsure about one thing,
Q_PROPERTY is a compile-time declaration. I'd like to add
properties/members dynamically at run time and I'd like to of course
avoid calling eval() for that.

>> Apart of that I'd also think about placing javascript bindings on the
>> (headless) server side too, think of extensions to PostgreSQL, SQLite.
>> The goal is to have the very same user-defined functions available at
>> both client and server side.
>> As said before I also need an API to implement a full visual debugger.
> I'm afraid the debugging isn't quite on the table yet as we're still exploring different
> implementations. The approach chosen in QtScript is too limiting for the engine
> overall, but Andre has done some amazing work on trying out a new approach that
> combines with the native debugger. But we're not talking API at this point though.

If something appears within one year, I am fine with that. If not,
native debugger integration developed externally, oh...

regards, Jaroslaw Staniek

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