excluding features from sloppy mode
brendan at mozilla.com
Fri Dec 28 15:46:03 PST 2012
Kevin Smith wrote:
> The question really is, why have sloppy-mode classes at all? Who
> wants or needs them?
> Well, no one, really. But we shouldn't want big invisible switches or
> any new pragma-haunts either.
There's no invisible switch. You are assuming something not axiomatic:
that new syntax head-forms other than module must inherit sloppy from
outer code. That does not follow without more argumentation.
I'm not sure what "pragma-haunts" means. Adding "use strict"; to
ClassElement sounds more like that, and I'm clearly arguing against!
> You've said that my predictions are "wildly optimistic", and I'm going
> to have to push back.
> Let me, like the Ghost of Christmas Present, take you on a tour of the
> this eve of 2013.
> Behold, UMD (Universal Module Definition), the "jewel" of the
> Everyone, and I mean *ev-er-y-one*, will be ecstatic when this scourge
> is beaten, burned, scattered, and wiped off the face of the Earth.
Who actually uses this or an equivalent? I see lots of code choosing one
or another module/package system but few attempts at dual interop. I
haven't see this in the field, but I'm not looking hard.
> Sure, Scrooges everywhere will say "Bah humbug! ES6 modules suck!",
> but it's laugh-out-loud ridiculous to think that anyone, anywhere
> would choose UMD over ES6 modules.
> bar none. We don't need to worry about adoption.
> Well, what about Node and NPM? There's a well-established module
> system in place which has some apparent incompatibilities with ES6
> modules. What to do? Well, Node will move in the direction that it
> *has* to move: toward ES6 modules. Championing a legacy module system
> with well-known problems in the face of ES6 modules, as standardized
> by EcmaScript, is a non-starter. And ultimately, despite the gnashing
This is all fun, but "ultimately" is a giveaway. Years from now, modules
uber alles, you bet. I'm arguing against coupled (multiplied) risk in
the near term.
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