Jeff?
On Thu, Feb 26, 2015 at 9:48 AM, Katelyn Gadd <[email protected]> wrote: > In the past 'throw' statements have caused a deopt for the enclosing > function in v8 and spidermonkey. I think they still do in some > scenarios. I would assume that if a statement is able to throw the > enclosing function must have unwind logic and it could potentially > suppress inlining as well depending on how smart the VM is? > > On 25 February 2015 at 17:49, Mark S. Miller <[email protected]> wrote: > > Again, I don't understand this. Why would it make the normal case more > > expensive. The underlying detachment test must be there regardless, and > the > > only difference in behavior is what happens after that test fails. > > > > On Wed, Feb 25, 2015 at 5:05 PM, Jeff Walden <[email protected]> wrote: > >> > >> And expanding scope slightly: IntegerIndexedElementGet -- get -- throws > a > >> TypeError if the relevant typed array is detached, rather than just > >> returning |undefined| as the computed value. I understand there are > also > >> significant complaints about this, for similar reasons. > >> > >> Jeff > >> _______________________________________________ > >> es-discuss mailing list > >> [email protected] > >> https://mail.mozilla.org/listinfo/es-discuss > > > > > > > > > > -- > > Cheers, > > --MarkM > > > > _______________________________________________ > > es-discuss mailing list > > [email protected] > > https://mail.mozilla.org/listinfo/es-discuss > > > -- Cheers, --MarkM
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