ECMAScript 6 support

[cctuan]

Hi,
is it possible to have a version that support harmony version?

We have problem when the scripts contains "let" and "const" ..etc. which are from ECMA 6.

I saw there's a harmony branch in istanbul, but unfortunately, it cannot work in our FirefoxOS test env which does not support to download repo from "git://xxx".

It will be nice if this plugin could provide a version without git dependency

[gotwarlost]

Why don't you just download the instrumenter from: https://raw2.github.com/gotwarlost/istanbul/harmony/lib/instrumenter.js

And similarly for esprima and escodegen that are required for the browser.

https://raw2.github.com/ariya/esprima/harmony/esprima.js

I cannot publish a new module just for this.

[cctuan]

@gotwarlost Thanks, I create another repo with the new instrumenter.js and use git://github.com/ariya/esprima.git#harmony for esprima. However, the mocha test always tell me
|SyntaxError: Use of const in strict mode.| error.

Is there any other options I haven't enable yet?

[gotwarlost]

Could you give me a reproducible test case so I can dig into what is happening?

[jonathanong]

@gotwarlost is there a possibility you could unpin the esprima dep so i could just do npm i ariya/esprima#harmony and have it work? right now i'm using https://www.npmjs.org/package/istanbul-harmony which is kind of silly

[andrewdeandrade]

@gotwarlost So like 12 hours ago esprima 2.0.0 was released, which is the first version with official ES6 support. Would it be possible to upgrade istanbul to esprima 2 and start supporting the es6 features it currently supports (there are only 3 features so far).

[silkentrance]

@gotwarlost it seems that this had been resolved. Can we please close this?