[Webkit-unassigned] [Bug 156147] [JSC] implement async functions proposal

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156147

--- Comment #43 from Geoffrey Garen <ggaren at apple.com> ---
> > I believe we create a new Parser for each parsing operation. I would assign
> > flags to the Parser from the global object at Parser creation time.
> 
> I've been looking at doing this --- there are some unfortunate side affects
> (growing the size of every UnlinkedFunctionExecutable, for one).
> 
> Is there any good reason not to just use JSC_OPTIONS for this? This would
> make it easy to enable during tests, without growing a bunch of classes

It would be nice to standardize on RuntimeFlags as the single place where we enable or disable features at runtime.

Why does propagating a runtime flag from global object to parser require adding data to UnlinkedFunctionExecutable, and why does using a JSC::Option avoid doing so?

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