Hey Anthony,

Wondering how you are progressing with your web-extension port of GM?

If I can help in any way, let me know.

Regards,
Damien.


On Wednesday, May 31, 2017 at 2:14:47 PM UTC+10, [email protected] wrote:
>
> Anthony, I'd just reiterate the value of ensuring compatibility not just 
> with existing userscripts, but also userscripts that are compatible with 
> other userscript addons, such as Tamper/Violent and others.  
>
> In other words, its not just the past, but also the future to consider in 
> terms of compatibility with other userscript addons.  
>
> If shims/transpilation can ensure that compatibility, my suggestion is to 
> make it a priority for the new version.  
>
> A longer-term consideration is to engage in discussion with other 
> userscript addon authors and work towards an agreed async API.  It will 
> take longer than you probably have for the FF57 deadline, so the 
> shim/transpilation idea I would suggest is a more immediate priority.
>
> My key point is you don't want to marginalise GM by being incompatible 
> with others, especially when those others are already cross-browser 
> compatible.
>
> Damo.
>
> On Wednesday, May 31, 2017 at 3:18:09 AM UTC+10, Anthony Lieuallen wrote:
>>
>> On Tue, May 30, 2017 at 2:52 AM, <[email protected]> wrote:
>>
>>> Or using ES2017, something like:
>>>
>>> let sData = await GM.getValue("serialised") ; 
>>> let oData = JSON.parse(sData) ;
>>> // useful things still happen here.
>>>
>>>
>> I've largely decided to go for ideal design/good performance.  Since I'm 
>> also learning the new WebExt APIs along the way I might not do so 
>> perfectly, but I'm trying.  This means new async APIs.  The possibility for 
>> compatibility-increasing shims, even perhaps automatic ones, is not 
>> impossible.  But this proposal you have above is basically exactly what I'm 
>> doing.  New APIs return promises.  You can await 
>> <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/await>
>>  
>> a promise and get code like the example you've got above.
>>
>> We've been through painful compatibility migrations in the past.  They're 
>> not awesome, but they happen.  Plus, roughly half of all scripts use no 
>> privileged APIs and won't be affected.  In the future we can invest effort 
>> into repairing compatibility with old scripts that haven't been updated.  
>> But now (read: by the time 57 is out and we have to do something to not 
>> break 100%) we'll have something that works, and efficiently.
>>
>

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