Finding a "safety syntax" for classes
brendan at mozilla.org
Thu Mar 22 22:38:49 PDT 2012
Russell Leggett wrote:
> This is what Allen said about hoisting for this spec (Its been a long
> thread, not sure if you missed this.):
Thanks, I did catch up that far on the thread, but Allen reiterated the
point he'd made months ago: you can't hoist *and initialize* the class
declaration as you can a function declaration. Rather, class decl is
like const decl. That was my point.
If "hoist" means only the binding, with a TDZ protecting use before
in-evaluation-order init, then we agree.
If hoist means (as I used it, and even the words from Allen you quote
do, viz "hoisting class definitions and immediately initializing them
the way we do with functions just doesn't work...") moving the
initiialization up too, then that misorders expression evaluation.
I'm pretty happy with the thread, and with Allen's strawman based on
your suggestion and Dave's minimal classes work. Thanks!
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