On Fri, Apr 14, 2017 at 5:13 AM Andrea Giammarchi < andrea.giammar...@gmail.com> wrote:
> Actually, after years of developers complaining about the > overly-aggressive and useless message only Firefox was showing, it looks > like modern versions don't. > Do you know if that's because they optimized it, or they just gave up showing the message? At this point I believe this is a GJS only issue because it's based on old > version of moz.js > > Is there any roadmap available to understand when I can drop transpilation > all together and use ES2015 instead on GJS? > The roadmap is "as fast as I can" :-) I think it's safe to say that mozjs 52 will be landed in GNOME 3.26. On Fri, Apr 14, 2017 at 12:43 PM, Andrea Giammarchi < > andrea.giammar...@gmail.com> wrote: > >> > they really really don't want you mutating the prototype of an object. >> It must really be that slow. >> >> It's part of standard specifications and it's cheaper than any other >> workaround that would avoid using `Object.setPrototypeOf`, including a >> Proxy. >> >> They really should mind their business, or complain with TC39 instead, >> IMO. >> >> As summary, should I blame Mozilla and file a bug there? >> >> Thanks >> >> On Fri, Apr 14, 2017 at 4:32 AM, <philip.chime...@gmail.com> wrote: >> >>> On Thu, Apr 13, 2017, 11:23 Andrea Giammarchi < >>> andrea.giammar...@gmail.com> wrote: >>> >>>> Apparently, the latest GJS warns about "stuff" even if executed through >>>> GJS_DISABLE_EXTRA_WARNINGS=1 >>>> flag. >>>> >>>> Gjs-Message: JS WARNING: [/app/lib/jsgtk/jsgtk_modules/jsgtk/babel.js 26]: >>>> mutating the [[Prototype]] of an object will cause your code to run very >>>> slowly; instead create the object with the correct initial [[Prototype]] >>>> value using Object.create >>>> >>>> >>>> This message is completely useless/pointless when it comes to >>>> transpiled code, and to be honest, it's been always useless on Firefox >>>> consoles too 'cause developers setting or mutating a prototype 99% of the >>>> time have valid reasons to do so. >>>> >>>> Am I missing yet another flag to ask GJS to kindly "shut-up" or any >>>> attempt to normalize Gir classes as JS will show these kind of warnings? >>>> >>>> Thanks for any sort of explanation/hint about this. >>>> >>> >>> Hi Andrea, >>> >>> It's true, this warning is not affected by the disable-extra-warnings >>> setting. I don't have an explanation why the Firefox devs chose to make it >>> that way, except maybe they really really don't want you mutating the >>> prototype of an object. It must really be that slow. >>> >>> You could try to use an ES6 Proxy to achieve what you want. >>> >>> Regards, >>> Philip C >>> >>>> >> >
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