Strengthen JS

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Welcome to the "Strengthening JS" discussion group! This group is intended for exchanging information and opinions about the experimental strong mode and type system extensions that the V8 team is working on. See here for further info:

https://developers.google.com/v8/experiments

We will post interesting updates here. But we also encourage everybody who is interested to share their opinions, suggestions, or problems with the proposals and their prototype implementations, as they evolve.

Thanks,

/Andreas

0 selected

Andreas Rossberg, … Joe Pea7

12/26/21

An update on strong mode

Engines and optimizations have advanced since the last time this was considered. Could it be more

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An update on strong mode

Engines and optimizations have advanced since the last time this was considered. Could it be more

12/26/21

Jens von Pilgrim, … Shelby Moore4

9/15/16

N4JS: JavaScript language extension with sound type system

Thank you very much for the feedback. Although I will give a short feedback here, I would suggest to

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N4JS: JavaScript language extension with sound type system

Thank you very much for the feedback. Although I will give a short feedback here, I would suggest to

9/15/16

Tim Ruffles, … Shelby Moore19

9/11/16

Disallow `void`

Rather I think he was referring to porting the strong mode implementation to other VMs and/or

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Disallow `void`

Rather I think he was referring to porting the strong mode implementation to other VMs and/or

9/11/16

9/11/16

Don't support uncheckable user-defined guards (type narrowing)

Please consider not repeating what appears to me to be TypeScript's mistake: https://github.com/

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Don't support uncheckable user-defined guards (type narrowing)

Please consider not repeating what appears to me to be TypeScript's mistake: https://github.com/

9/11/16

9/11/16

Proposal: `if-else` and `switch` as optional expressions

This suggestion has already been posted to ES-Discuss and TypeScript Issue tracker: https://mail.

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Proposal: `if-else` and `switch` as optional expressions

This suggestion has already been posted to ES-Discuss and TypeScript Issue tracker: https://mail.

9/11/16

Michael McGlothlin, … Andreas Rossberg9

4/4/16

Define properties in a constructor?

FWIW, ES7 is pretty much done; it does not have decorators. Also, decorators wouldn't help at all

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Define properties in a constructor?

FWIW, ES7 is pretty much done; it does not have decorators. Also, decorators wouldn't help at all

4/4/16

Youness Belfkih

3/26/16

End User vs Code Generator especialy altJS

End User needs a stricter JavaScript a secure environment a scalable code base ... other stuff that

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End User vs Code Generator especialy altJS

End User needs a stricter JavaScript a secure environment a scalable code base ... other stuff that

3/26/16

Ashley Gullen, … Youness Belfkih4

3/26/16

Frozen class prototypes and replacing strong mode with proxies

Then the output would be one long class combining both of them Le samedi 26 mars 2016 08:11:23 UTC,

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Frozen class prototypes and replacing strong mode with proxies

Then the output would be one long class combining both of them Le samedi 26 mars 2016 08:11:23 UTC,

3/26/16

Kevin Smith, … Youness Belfkih4

3/26/16

Should strong classes inherit from Object.prototype?

As for conversions, you might still want to invoke toString explicitly, for example. HasOwnProperty

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Should strong classes inherit from Object.prototype?

As for conversions, you might still want to invoke toString explicitly, for example. HasOwnProperty

3/26/16

Sébastien Doeraene, … Youness Belfkih8

3/26/16

Compiling Scala.js to Strong Mode - the good, the bad, and the ugly

yes please, a window for code genrators Le vendredi 8 mai 2015 13:38:18 UTC+1, Andreas Rossberg a

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Compiling Scala.js to Strong Mode - the good, the bad, and the ugly

yes please, a window for code genrators Le vendredi 8 mai 2015 13:38:18 UTC+1, Andreas Rossberg a

3/26/16

Youness Belfkih

3/26/16

ES7 Reflect API?

please don't cut the last hope i have for dynamic tricks for my compiler : leave Reflect API as

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ES7 Reflect API?

please don't cut the last hope i have for dynamic tricks for my compiler : leave Reflect API as

3/26/16

Maga D. Zandaqo, Youness Belfkih3

3/26/16

Multiple inheritance (with mixins)

I'm planning on implementing mixins in a language I'm currently designing but strong JS will

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Multiple inheritance (with mixins)

I'm planning on implementing mixins in a language I'm currently designing but strong JS will

3/26/16

Youness Belfkih

3/26/16

Declarative approach

Disallow JavaScript statement at the root of strong mode scope "use strong"; function alert

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Declarative approach

Disallow JavaScript statement at the root of strong mode scope "use strong"; function alert

3/26/16

Youness Belfkih

3/26/16

What grinds my gears in JS

Arithmetic operations shouldn't accept Objects useful for game developers `NaN === NaN` shouldn

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What grinds my gears in JS

Arithmetic operations shouldn't accept Objects useful for game developers `NaN === NaN` shouldn

3/26/16

Ivan Kozik, … Justin Fagnani4

10/30/15

Can't decorate a method on a strong class

On Friday, October 30, 2015 at 7:36:54 AM UTC-7, Ivan Kozik wrote: On Fri, Oct 30, 2015 at 2:18 PM,

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Can't decorate a method on a strong class

On Friday, October 30, 2015 at 7:36:54 AM UTC-7, Ivan Kozik wrote: On Fri, Oct 30, 2015 at 2:18 PM,

10/30/15

Michael McGlothlin, Andreas Rossberg2

10/7/15

default parameters?

On 7 October 2015 at 18:02, Michael McGlothlin <mike.mc...@gmail.com> wrote: > When

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default parameters?

On 7 October 2015 at 18:02, Michael McGlothlin <mike.mc...@gmail.com> wrote: > When

10/7/15

Michael McGlothlin, Andreas Rossberg2

9/30/15

Only numeric keys for arrays?

On 29 September 2015 at 21:49, Michael McGlothlin <mike.mc...@gmail.com> wrote: > I was

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Only numeric keys for arrays?

On 29 September 2015 at 21:49, Michael McGlothlin <mike.mc...@gmail.com> wrote: > I was

9/30/15

Spencer Alger, Andreas Rossberg2

6/12/15

Implicit conversion

On 12 June 2015 at 09:09, Spencer Alger <spencer...@gmail.com> wrote: > Open Questions:

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Implicit conversion

On 12 June 2015 at 09:09, Spencer Alger <spencer...@gmail.com> wrote: > Open Questions:

6/12/15

Joa Ebert, Andreas Rossberg3

6/1/15

Unexpected ReferenceError

[Sorry for the late reply, btw, everybody's on holidays over here.] On 1 June 2015 at 14:51,

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Unexpected ReferenceError

[Sorry for the late reply, btw, everybody's on holidays over here.] On 1 June 2015 at 14:51,

6/1/15

Si Robertson, … Andreas Rossberg8

6/1/15

Class Constructor Restrictions

On 25 May 2015 at 15:01, Si Robertson <retrom...@gmail.com> wrote: I'm still not keen on

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Class Constructor Restrictions

On 25 May 2015 at 15:01, Si Robertson <retrom...@gmail.com> wrote: I'm still not keen on

6/1/15

Sébastien Doeraene, Andreas Rossberg8

5/12/15

Classes referring mutually to each other

On 9 May 2015 at 19:01, Sébastien Doeraene <sjrdo...@gmail.com> wrote: I see that the

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Classes referring mutually to each other

On 9 May 2015 at 19:01, Sébastien Doeraene <sjrdo...@gmail.com> wrote: I see that the

5/12/15

Sébastien Doeraene, … Andreas Rossberg4

4/27/15

Rationale for TypeError when re-assigning a field in constructor

On 25 April 2015 at 23:23, Sébastien Doeraene <sjrdo...@gmail.com> wrote: At this point our

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Rationale for TypeError when re-assigning a field in constructor

On 25 April 2015 at 23:23, Sébastien Doeraene <sjrdo...@gmail.com> wrote: At this point our

4/27/15

Trevor Norris, … Erik Arvidsson15

4/24/15

On Fri, Apr 24, 2015 at 1:49 PM, Trevor Norris <trev....@gmail.com> wrote: > On Fri, Apr

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On Fri, Apr 24, 2015 at 1:49 PM, Trevor Norris <trev....@gmail.com> wrote: > On Fri, Apr

4/24/15

Trevor Norris, … Dmitry Lomov7

4/22/15

Performance impact of let only code

The fix has landed, and Trevor's test shows similar performance (let variation is actually a bit

unread,

Performance impact of let only code

The fix has landed, and Trevor's test shows similar performance (let variation is actually a bit

4/22/15

Domenic Denicola, Sébastien Doeraene5

4/20/15

Strong promises instead of nonstandard Promise extensions?

I think I see. It is only OK if semantics change such that strong versions throw errors (or ignore

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Strong promises instead of nonstandard Promise extensions?

I think I see. It is only OK if semantics change such that strong versions throw errors (or ignore

4/20/15

Phil Schaf, … Andreas Rossberg12

3/19/15

Andreas Rossberg <ross...@google.com> schrieb am Mi., 18. März 2015 um 16:51 Uhr: Iterating

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Andreas Rossberg <ross...@google.com> schrieb am Mi., 18. März 2015 um 16:51 Uhr: Iterating

3/19/15

Sébastien Doeraene, Andreas Rossberg3

3/17/15

Bypassing the constructor of a strong class should be prohibited

Hi, Ah OK, that makes perfect sense. Thanks for the clarifications. Maybe the strawman could clarify

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Bypassing the constructor of a strong class should be prohibited

Hi, Ah OK, that makes perfect sense. Thanks for the clarifications. Maybe the strawman could clarify

3/17/15

Sébastien Doeraene, … Andreas Rossberg6

3/17/15

Cloning a strong object in strong mode

Hi, Ah, I did not foresee stuff that far. I only looked at the current spec. But if it's fine in

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Cloning a strong object in strong mode

Hi, Ah, I did not foresee stuff that far. I only looked at the current spec. But if it's fine in

3/17/15

Si Robertson, … Dmitry Lomov5

3/17/15

Functions - Arguments Object

On Tue, Mar 17, 2015 at 10:04 AM, Sébastien Doeraene <sjrdo...@gmail.com> wrote: Hi, V8

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Functions - Arguments Object

On Tue, Mar 17, 2015 at 10:04 AM, Sébastien Doeraene <sjrdo...@gmail.com> wrote: Hi, V8

3/17/15

Si Robertson, Andreas Rossberg3

3/13/15

Namespace/Package Creation (Objects)

Ah, modules. My bad. I should have realized those would be the solution, they are something I'm

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Namespace/Package Creation (Objects)

Ah, modules. My bad. I should have realized those would be the solution, they are something I'm

3/13/15

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