1368316 - Support ES7 Decorators

Status: RESOLVED DUPLICATE of bug 1435869

(Core :: JavaScript Engine, defect, P3)

Description

[Alex Art]

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0
Build ID: 20170518000419

Steps to reproduce:

Feature request: Support ES7 Decorators
Please take a look at this spec: https://github.com/wycats/javascript-decorators
Also at this article: https://medium.com/google-developers/exploring-es7-decorators-76ecb65fb841


Actual results:

Decorators are not supported


Expected results:

Should be supported

Comment 1

[Tooru Fujisawa [:arai]]

here's current proposal.
http://tc39.github.io/proposal-decorators/

according to the list below, it's stage 2.
https://github.com/tc39/proposals

and it's not yet the time to implement.
https://tc39.github.io/process-document/

Comment 2

[Alex Art]

Thank you Tooru Fujisawa [:arai].
Angular  4 is using Decorators actively.
So let's hope the spec will be finalized soon and we'll be able to implement it.

Comment 3

[Matteo Ferretti [:zer0] [:matteo]]

Hope we can have something soon! In firefox codebase we have issue to migrate to ES6 classes since we can't decorate functions; and that's is resulting in mixed code – the ones that uses decorators is still using `prototype`, the rest is using `class`.

Comment 4

[Jason Orendorff [:jorendorff]]

Dup-ing forward to the other bug -- we only need one of these!