[Development] Qt 5.9's new garbage collector documentation? + root_ptr

Tue Jul 11 14:44:34 CEST 2017

Simon Hausmann <Simon.Hausmann at qt.io> wrote:
> 
> bar shall be a global variable that is callable (i.e. somebody
> initialized it with a function closure). When invoked it shall return
> either a primitive value or a JavaScript object and takes one arbitrary parameter.
> 
> 
> It is an implementation detail whether it returns the parameter provided,
> or "42" (either as string or number :) and the behavior may change at run-time.
> 
> 
> So at the compilation time of this snippet, all we basically know is
> 
> 
>     var bar;
> 
> 
> It could be that bar was initialized to "100", in which case I think an
> exception would be thrown at the attempt of calling it.
> 
> 
> Simon
> 
> ________________________________
> From: Development
> <development-bounces+simon.hausmann=qt.io at qt-project.org> on behalf of Phil Bouchard
> <philippeb8 at gmail.com>
> Sent: Tuesday, July 11, 2017 1:49:05 PM
> To: development at qt-project.org
> Subject: Re: [Development] Qt 5.9's new garbage collector documentation? + root_ptr
> 
> On 07/11/2017 04:02 AM, Tim Blechmann wrote:
>>> On the other hand, I have good news as I think I have found a way to
>>> simulate functions that return a function.
>> 
>> how to you cope with structures like:
>> 
>> function foo( outObject )
>> {
>> var object = {}
>> outObject.object = object
>> outObject.result = function() { return object }
>> return function() { return bar( object ) }
>> }
> 
> I'm looking into stuff like that so I am mimicking a run-time stack in
> my example:
> https://github.com/philippeb8/root_ptr/blob/qt/example/javascript_example1.cpp
> 
> Meanwhile please define bar();
> 
> 
> Thanks,
> -Phil
> 
> _______________________________________________
> Development mailing list
> Development at qt-project.org
> http://lists.qt-project.org/mailman/listinfo/development
> 
> --_000_VI1PR02MB10065F354A27556625565A498CAE0VI1PR02MB1006eurp_
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> <p>bar shall be a global variable that is callable (i.e. somebody
> initialized it with a function closure). When invoked it shall
> return <span style="font-size:12pt">either a
> </span><span style="font-size:12pt">primitive value or a JavaScript
> object and takes one arbitrary
> </span><span style="font-size:12pt">parameter.</span></p>
> <p><br>
> </p>
> <p>It is an implementation detail whether it returns the parameter
> provided, or "42" (either as string or number :) and the
> behavior may change at run-time.</p>
> <p><br>
> </p>
> <p>So at the compilation time of this snippet, all we basically know is</p>
> <p><br>
> </p>
> <p>    var bar;</p>
> <p><br>
> </p>
> <p>It could be that bar was initialized to "100", in which case
> I think an exception would be thrown at the attempt of calling it.</p>
> <p><br>
> </p>
> <p>Simon</p>
> </div>
> <hr tabindex="-1" style="display:inline-block; width:98%">
> <div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif"
> color="#000000" style="font-size:11pt"><b>From:</b> Development
> <development-bounces+simon.hausmann=qt.io at qt-project.org> on
> behalf of Phil Bouchard <philippeb8 at gmail.com><br>
> <b>Sent:</b> Tuesday, July 11, 2017 1:49:05 PM<br>
> <b>To:</b> development at qt-project.org<br>
> <b>Subject:</b> Re: [Development] Qt 5.9's new garbage collector
> documentation? + root_ptr</font>
> <div> </div>
> </div>
> </div>
> <font size="2"><span style="font-size:10pt;">
> <div class="PlainText">On 07/11/2017 04:02 AM, Tim Blechmann wrote:<br>
> >> On the other hand, I have good news as I think I have found a way to<br>
> >> simulate functions that return a function.<br>
> ><br>
> > how to you cope with structures like:<br>
> ><br>
> > function foo( outObject )<br>
> > {<br>
> >     var object = {}<br>
> >     outObject.object = object<br>
> >     outObject.result = function() { return object }<br>
> >     return function() { return bar( object ) }<br>
> > }<br>
> <br>
> I'm looking into stuff like that so I am mimicking a run-time stack in <br>
> my example:<br>
> <a
> href="https://github.com/philippeb8/root_ptr/blob/qt/example/javascript_example1.cpp">https://github.com/philippeb8/root_ptr/blob/qt/example/javascript_example1.cpp</a><br>
> <br>
> Meanwhile please define bar();<br>
> <br>
> <br>
> Thanks,<br>
> -Phil<br>
> <br>
> _______________________________________________<br>
> Development mailing list<br>
> Development at qt-project.org<br>
> <a
> href="http://lists.qt-project.org/mailman/listinfo/development">http://lists.qt-project.org/mailman/listinfo/development</a><br>
> </div>
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> 
> --_000_VI1PR02MB10065F354A27556625565A498CAE0VI1PR02MB1006eurp_--

Ok thanks. I'm confident it'll work.

-Phil