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From Cosma Colanicchia <cosma...@gmail.com>
Subject Re: Cross-compiling to build components
Date Fri, 06 Dec 2013 17:31:53 GMT
Very nice job!


2013/12/6 Mr. Rich <mrrich.net@gmail.com>

> Great news Peter,
> On Dec 6, 2013 11:42 AM, "Peter Ent" <pent@adobe.com> wrote:
>
> > Hi,
> >
> > I've just finished an experiment with pretty good results.
> >
> > A little while ago I created a first pass at a FlexJS DataGrid. This
> meant
> > building both the ActionScript and the JavaScript components and all of
> > their parts (data model, view, and so forth). Creating a new component
> for
> > FlexJS follows the same pattern: build the component in one language and
> > then build it in the other.
> >
> > The experiment was to take the ActionScript component and compile it into
> > JavaScript and compare the result with my hand-crafted JavaScript
> version.
> > Well, the result was a success. Doing this uncovered some issues with the
> > FalconJX compiler that were resolved by either Alex Harui or Erik de
> Bruin,
> > which I think, strengthened the compiler. Once things were ironed out,
> the
> > ActionScript DataGrid compiled cleanly into JavaScript and ran.
> >
> > This experiment worked for the DataGrid because it is really a composite
> > component. That is, the DataGrid I created is a Container with a
> ButtonBar
> > for column headers and Lists for the columns; the DataGrid co-ordinates
> the
> > events between all of the lists. This technique would not work for
> > components that have very custom JavaScript requirements or which have
> > "native" JavaScript/HTML versions (such a Label or a Button).
> >
> > What this experiment means is that some components - specifically ones
> > that are composed of existing components - can be created and tested in
> > ActionScript, then cross-compiled into JavaScript to provide a fast-path
> to
> > the JavaScript version. This technique may not work 100% in all cases,
> but
> > what it has shown me is that you can get a lot of good code on the
> > JavaScript side from the ActionScript source, at least enough to quickly
> > finish the JavaScript version.
> >
> > Regards,
> > Peter Ent
> > Adobe Systems
> >
>

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