Module Execution Order
Mark S. Miller
erights at google.com
Wed Apr 10 11:25:42 PDT 2013
If a module is lexically nested, IMO it would violate encapsulation if it
could be directly named from outside that scope -- just like anything else
that is lexically nested. But this goes to the core of the issues we've
postponed till ES7.
On Wed, Apr 10, 2013 at 11:18 AM, Sam Tobin-Hochstadt <samth at ccs.neu.edu>wrote:
> On Wed, Apr 10, 2013 at 12:13 PM, Kevin Smith <zenparsing at gmail.com>
> > On Wed, Apr 10, 2013 at 11:39 AM, Sam Tobin-Hochstadt <samth at ccs.neu.edu
> > wrote:
> >> On Wed, Apr 10, 2013 at 11:01 AM, Kevin Smith <zenparsing at gmail.com>
> >> wrote:
> >> >
> >> >>
> >> >> I'm not sure what prior critique you're referring to.
> >> >
> >> >
> >> > Quite a while ago, I pointed out that concatenation would be difficult
> >> > with
> >> > nested modules, but I was operating under the assumption of
> >> > execution: https://gist.github.com/zenparsing/3892979
> >> I think this transformation demonstrates why I prefer our current
> >> approach more than nested modules. See my fork at
> >> https://gist.github.com/samth/5355676
> > The correct translation using nested modules (with the proper topological
> > execution order semantics), would be more like this:
> > https://gist.github.com/zenparsing/5355927
> >> I don't particularly want to have this discussion yet another time,
> > I don't remember having this discussion on es-discuss. Not that it's a
> > requirement or anything...
> The meeting minutes contain some rather comprehensive notes on
> variants of this discussion.
> for an example.
> >> but (a) lexical modules as in our original design did not serve all
> >> the required use cases
> > Given that bundling is possible with nested modules, I'm not sure what
> > use cases `module "name"` is serving. I'll look back through the use
> > presentation, though.
> The most important use case not served by lexical modules is defining
> a module with a single name that multiple external modules can
> reference it with. That's the use case discussed in the above meeting
> es-discuss mailing list
> es-discuss at mozilla.org
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