On Mon, 18 Aug 2014, John Barton wrote:
> >
> > (For example, a graphical game might need some sprite assets to be
> > loaded before it can start up. So its <script> might be marked as
> > depending on an <img> element that loads that image. Or the script
> > contents might have an import statement that refers to that image.)
>
> Supporting this case seems straight-forward and can be done entirely by
> the browser Loader implementation using hooks.
That is my hope, yes.
> The reverse case, where a img depends on a script, is not a use case.
Why not? What if the image has an onmouseover handler that calls an API
function defined in a module, for instance?
> > > > Or indeed even when scripting is enabled, how would you use it to
> > > > mark one non-loaded script as dependent on another non-loaded
> > > > script such that when you later ask for the former, the latter
> > > > loads automatically?
> > >
> > > import './latter';
> > >
> > > It's a solved problem for scripts.
> >
> > The key part of my question was "non-loaded". The "import" bit is in
> > the script. The script isn't loaded yet, so we can't rely on it.
>
> <script>
> System.import('./former').then((former) => {
> // do stuff with former, knowing './former' imported './latter'.
> });
> </script>
This results in multiple RTTs. Also, this doesn't wait until former is
needed before loading it.
> Here we are expressing the dependency of the HTML file on the non-loaded
> file './former' and it depends on the non-loaded file './latter'.
But you don't know that it depends on ./latter until you've fetched
./former, by which time it's too late.
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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