[v8-users] Re: [blink-dev] Intent to ship: Optimize await and AsyncFromSyncIterator

2018-09-28 Thread Sathya Gunasekaran 
On Fri, Sep 28, 2018 at 6:39 PM Sathya Gunasekaran 
wrote:

> LGTM
>
> On Fri, Sep 28, 2018 at 7:57 AM Maya Lekova  wrote:
>
>>
>>
>>
>>
>>
>>
>>
>>
>> *Contact emailsmslek...@chromium.org
>> Explainerhttps://docs.google.com/document/d/1kL08cz4lR6gO5b2FATNK3QAfS8t-6K6kdk88U-n8tug/edit?usp=sharing
>> SpecThe
>> ECMAScript specification change reached consensus. Pull request:
>> https://github.com/tc39/ecma262/pull/1250
>> The tag review process is not
>> needed, TC39 consensus was reached instead.SummaryThe goal of this change
>> is to reduce the native “await” functionality to only take 1 tick on the
>> microtask queue instead of 3.Is this feature supported on all six Blink
>> platforms (Windows, Mac, Linux, Chrome OS, Android, and Android
>> WebView)?Yes.RisksInteroperability and CompatibilityEdge: ShippedFirefox:
>> No signalsSafari: No signalsWeb developers: Shouldn’t affect web
>> developers, as most of them transpile away async/await and Babel already
>> ships with the new behaviour.*
>>
>
Note: There's a web compat risk as this changes the observable order in
which promises created by async functions are resolved. Chrome plans to
ship this with a kill switch in case we hear about breakages in the wild.

We've decided not to add a use counter for this as it will lead to
unacceptable performance regressions.


>
>>
>> *ActivationThe new behaviour won’t affect the way async/await is being
>> used.Is this feature fully tested by web-platform-tests
>> ?Test262
>> tests are being implemented. We have related tests in the V8 repository in
>> test/inspector/debugger.Entry on the feature dashboard
>> Fits under
>> https://www.chromestatus.com/feature/5643236399906816
>> , as this is simply
>> an errata to the spec.*
>> ---
>> Best regards,
>> Maya
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "blink-dev" group.
>> To view this discussion on the web visit
>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFszerUqYez-STtMj1kEkjP1M%2BGm%2Bd07E7RNcY3%3DXn9rwZ57yQ%40mail.gmail.com
>> 
>> .
>>
>

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[v8-users] Re: [blink-dev] Intent to ship: Optimize await and AsyncFromSyncIterator

2018-09-28 Thread Sathya Gunasekaran 
LGTM

On Fri, Sep 28, 2018 at 7:57 AM Maya Lekova  wrote:

>
>
>
>
>
>
>
>
>
>
> *Contact emailsmslek...@chromium.org
> Explainerhttps://docs.google.com/document/d/1kL08cz4lR6gO5b2FATNK3QAfS8t-6K6kdk88U-n8tug/edit?usp=sharing
> SpecThe
> ECMAScript specification change reached consensus. Pull request:
> https://github.com/tc39/ecma262/pull/1250
> The tag review process is not
> needed, TC39 consensus was reached instead.SummaryThe goal of this change
> is to reduce the native “await” functionality to only take 1 tick on the
> microtask queue instead of 3.Is this feature supported on all six Blink
> platforms (Windows, Mac, Linux, Chrome OS, Android, and Android
> WebView)?Yes.RisksInteroperability and CompatibilityEdge: ShippedFirefox:
> No signalsSafari: No signalsWeb developers: Shouldn’t affect web
> developers, as most of them transpile away async/await and Babel already
> ships with the new behaviour.ActivationThe new behaviour won’t affect the
> way async/await is being used.Is this feature fully tested by
> web-platform-tests
> ?Test262
> tests are being implemented. We have related tests in the V8 repository in
> test/inspector/debugger.Entry on the feature dashboard
> Fits under
> https://www.chromestatus.com/feature/5643236399906816
> , as this is simply
> an errata to the spec.*
> ---
> Best regards,
> Maya
>
> --
> You received this message because you are subscribed to the Google Groups
> "blink-dev" group.
> To view this discussion on the web visit
> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFszerUqYez-STtMj1kEkjP1M%2BGm%2Bd07E7RNcY3%3DXn9rwZ57yQ%40mail.gmail.com
> 
> .
>

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Re: [v8-users] Fwd: Intent to ship: Optimize await and AsyncFromSyncIterator

2018-09-28 Thread Benedikt Meurer 
LGTM!

On Fri, Sep 28, 2018 at 4:06 PM Adam Klein  wrote:

> LGTM2
>
> On Fri, Sep 28, 2018 at 9:39 AM 'Mathias Bynens' via v8-users <
> v8-users@googlegroups.com> wrote:
>
>> LGTM
>>
>> On Fri, Sep 28, 2018 at 9:26 AM Maya Lekova 
>> wrote:
>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *Contact emailsmslek...@chromium.org
>>> Explainerhttps://docs.google.com/document/d/1kL08cz4lR6gO5b2FATNK3QAfS8t-6K6kdk88U-n8tug/edit?usp=sharing
>>> SpecThe
>>> ECMAScript specification change reached consensus. Pull request:
>>> https://github.com/tc39/ecma262/pull/1250
>>> The tag review process is not
>>> needed, TC39 consensus was reached instead.SummaryThe goal of this change
>>> is to reduce the native “await” functionality to only take 1 tick on the
>>> microtask queue instead of 3.Is this feature supported on all six Blink
>>> platforms (Windows, Mac, Linux, Chrome OS, Android, and Android
>>> WebView)?Yes.RisksInteroperability and CompatibilityEdge: ShippedFirefox:
>>> No signalsSafari: No signalsWeb developers: Shouldn’t affect web
>>> developers, as most of them transpile away async/await and Babel already
>>> ships with the new behaviour.ActivationThe new behaviour won’t affect the
>>> way async/await is being used.Is this feature fully tested by
>>> web-platform-tests
>>> ?Test262
>>> tests are being implemented. We have related tests in the V8 repository in
>>> test/inspector/debugger.Entry on the feature dashboard
>>> Fits under
>>> https://www.chromestatus.com/feature/5643236399906816
>>> , as this is simply
>>> an errata to the spec.*
>>> ---
>>> Best regards,
>>> Maya
>>>
>>>
>>> --
>>> --
>>> v8-users mailing list
>>> v8-users@googlegroups.com
>>> http://groups.google.com/group/v8-users
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "v8-users" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to v8-users+unsubscr...@googlegroups.com.
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>>>
>> --
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Re: [v8-users] Fwd: Intent to ship: Optimize await and AsyncFromSyncIterator

2018-09-28 Thread Adam Klein 
LGTM2

On Fri, Sep 28, 2018 at 9:39 AM 'Mathias Bynens' via v8-users <
v8-users@googlegroups.com> wrote:

> LGTM
>
> On Fri, Sep 28, 2018 at 9:26 AM Maya Lekova  wrote:
>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *Contact emailsmslek...@chromium.org
>> Explainerhttps://docs.google.com/document/d/1kL08cz4lR6gO5b2FATNK3QAfS8t-6K6kdk88U-n8tug/edit?usp=sharing
>> SpecThe
>> ECMAScript specification change reached consensus. Pull request:
>> https://github.com/tc39/ecma262/pull/1250
>> The tag review process is not
>> needed, TC39 consensus was reached instead.SummaryThe goal of this change
>> is to reduce the native “await” functionality to only take 1 tick on the
>> microtask queue instead of 3.Is this feature supported on all six Blink
>> platforms (Windows, Mac, Linux, Chrome OS, Android, and Android
>> WebView)?Yes.RisksInteroperability and CompatibilityEdge: ShippedFirefox:
>> No signalsSafari: No signalsWeb developers: Shouldn’t affect web
>> developers, as most of them transpile away async/await and Babel already
>> ships with the new behaviour.ActivationThe new behaviour won’t affect the
>> way async/await is being used.Is this feature fully tested by
>> web-platform-tests
>> ?Test262
>> tests are being implemented. We have related tests in the V8 repository in
>> test/inspector/debugger.Entry on the feature dashboard
>> Fits under
>> https://www.chromestatus.com/feature/5643236399906816
>> , as this is simply
>> an errata to the spec.*
>> ---
>> Best regards,
>> Maya
>>
>>
>> --
>> --
>> v8-users mailing list
>> v8-users@googlegroups.com
>> http://groups.google.com/group/v8-users
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "v8-users" group.
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>>
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Re: [v8-users] Fwd: Intent to ship: Optimize await and AsyncFromSyncIterator

2018-09-28 Thread 'Mathias Bynens' via v8-users 
LGTM

On Fri, Sep 28, 2018 at 9:26 AM Maya Lekova  wrote:

>
>
>
>
>
>
>
>
>
>
> *Contact emailsmslek...@chromium.org
> Explainerhttps://docs.google.com/document/d/1kL08cz4lR6gO5b2FATNK3QAfS8t-6K6kdk88U-n8tug/edit?usp=sharing
> SpecThe
> ECMAScript specification change reached consensus. Pull request:
> https://github.com/tc39/ecma262/pull/1250
> The tag review process is not
> needed, TC39 consensus was reached instead.SummaryThe goal of this change
> is to reduce the native “await” functionality to only take 1 tick on the
> microtask queue instead of 3.Is this feature supported on all six Blink
> platforms (Windows, Mac, Linux, Chrome OS, Android, and Android
> WebView)?Yes.RisksInteroperability and CompatibilityEdge: ShippedFirefox:
> No signalsSafari: No signalsWeb developers: Shouldn’t affect web
> developers, as most of them transpile away async/await and Babel already
> ships with the new behaviour.ActivationThe new behaviour won’t affect the
> way async/await is being used.Is this feature fully tested by
> web-platform-tests
> ?Test262
> tests are being implemented. We have related tests in the V8 repository in
> test/inspector/debugger.Entry on the feature dashboard
> Fits under
> https://www.chromestatus.com/feature/5643236399906816
> , as this is simply
> an errata to the spec.*
> ---
> Best regards,
> Maya
>
>
> --
> --
> v8-users mailing list
> v8-users@googlegroups.com
> http://groups.google.com/group/v8-users
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Re: [v8-users] Arraybuffer

2018-09-28 Thread dan Med 
I appreciate your help, but still i can't seem to just understand the stack
calls and if i do that then i like to understand what thing should i do in
the code to get v8 execute those lines, well if my prievous question is out
of scope for v8-users how can i understand how they work ?
There is no doc

Il giorno ven 28 set 2018 alle ore 14:35 Caitlin Potter 
ha scritto:

> That question is probably out of scope for v8-users. The good news is,
> cs.chromium.org is very good at finding when things are called, how
> they’re used, etc.
>
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