CS2 Discussion: Features: ES7 Decorators

[coffeescriptbot]

From @svicalifornia on 2017-03-08 11:13

Decorators are an advancing proposal for ES7:

https://medium.com/google-developers/exploring-es7-decorators-76ecb65fb841

MobX (an alternative to the Redux state management library used in React apps) uses ES7 decorators to do its best magic. (For the curious, here's a comparison of Redux and MobX.)

Can we add support for decorators in CoffeeScript 2.0?

[coffeescriptbot]

From @light24bulbs on 2017-03-10 01:07

I've just run into the same issue when trying to use MobX with coffeescript.

+1

It's exactly the type of syntax sugar that fits right into coffee's philosiphy. The issue is that the syntax is already used. The @ symbol is used and so it looks like you're calling a function to coffeescript. I propose we find some other symbol to make a decorator. Maybe the ~? Just needs to be something that won't conflict many peoples legacy code or any existing features.

[coffeescriptbot]

From @mrmowgli on 2017-03-10 01:09

If you dig around a bit on closed issues you should see a thread about this
already. Concensus seems to be to do a postprocess with commented
annotations.

On Mar 9, 2017 5:07 PM, "light24bulbs" [email protected] wrote:

I've just run into the same issue when trying to use MobX with
coffeescript.

+1

It's exactly the type of syntax sugar that fits right into coffee's
philosiphy. The issue is that the syntax is already used. The @ symbol is
used and so it looks like you're calling a function to coffeescript. I
propose we find some other symbol to make a decorator. Maybe the ~? Just
needs to be something that won't conflict many peoples legacy code or any
existing features.

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[coffeescriptbot]

From @light24bulbs on 2017-03-10 01:19

Here: coffeescript6/discuss#9

[coffeescriptbot]

From @mrmowgli on 2017-03-10 01:20

Coffeescript6 discuss I believe

On Mar 9, 2017 5:19 PM, "light24bulbs" [email protected] wrote:

Is that in coffeescript6 or in coffeescript?
I think we should at least link it for anyone who finds this thread.

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[coffeescriptbot]

From @light24bulbs on 2017-03-10 01:24

Yeah I linked to it above in an edit. I disagree with the conclusion they reached but we can talk about it there.

[coffeescriptbot]

From @GeoffreyBooth on 2017-03-10 03:34

Let’s keep the discussion in the original thread if you don’t mind. Also just because the issue is closed doesn’t at all mean it won’t be reopened; we use open/closed issues to track current priorities. As we run out of higher-priority features, some currently-closed ones might get reopened and worked on.