domenic at domenicdenicola.com (2013-12-10T02:30:55.549Z)
On Mon, Dec 9, 2013 at 2:36 PM, Till Schneidereit <till at tillschneidereit.net> wrote:
> You could also check the output of Traceur and TypeScript. I don't know how close either of them are to implementing the exact semantics of ES6 classes, but I'm sure it'll be helpful in any case.
Yup. See http://www.typescriptlang.org/Playground/#src=class%20Person%20%7B%0A%09private%20name%3A%20string%3B%0A%09%0A%09constructor(name)%20%7B%0A%09%09this.name%20%3D%20name%3B%0A%09%7D%0A%09%0A%09say(message%3A%20string)%20%7B%0A%09%09return%20this.name%20%2B%20'%20says%3A%20'%20%2B%20message%3B%0A%09%7D%0A%7D%0A%0Aclass%20Pirate%20extends%20Person%20%7B%0A%09constructor(name)%20%7B%0A%09%09super('Captn%5C'%20'%20%2B%20name)%3B%0A%09%7D%0A%09%0A%09say(message)%20%7B%0A%09%09return%20super.say(message%20%2B%20'%20Arrr!')%3B%0A%09%7D%0A%7D
On Mon, Dec 9, 2013 at 2:36 PM, Till Schneidereit <till at tillschneidereit.net> wrote: You could also check the output of Traceur and TypeScript. I don't know how close either of them are to implementing the exact semantics of ES6 classes, but I'm sure it'll be helpful in any case. > > > Yup. See http://www.typescriptlang.org/Playground/#src=class%20Person%20%7B%0A%09private%20name%3A%20string%3B%0A%09%0A%09constructor(name)%20%7B%0A%09%09this.name%20%3D%20name%3B%0A%09%7D%0A%09%0A%09say(message%3A%20string)%20%7B%0A%09%09return%20this.name%20%2B%20'%20says%3A%20'%20%2B%20message%3B%0A%09%7D%0A%7D%0A%0Aclass%20Pirate%20extends%20Person%20%7B%0A%09constructor(name)%20%7B%0A%09%09super('Captn%5C'%20'%20%2B%20name)%3B%0A%09%7D%0A%09%0A%09say(message)%20%7B%0A%09%09return%20super.say(message%20%2B%20'%20Arrr!')%3B%0A%09%7D%0A%7D - Juan On Monday, December 9, 2013 2:37 PM, Till Schneidereit <till at tillschneidereit.net> wrote: You could also check the output of Traceur and TypeScript. I don't know how close either of them are to implementing the exact semantics of ES6 classes, but I'm sure it'll be helpful in any case. On Mon, Dec 9, 2013 at 6:28 PM, James Long <longster at gmail.com> wrote: I read Allen's email wrong, thought it implied `this` was lexically >scoped (which I know is not true. very little sleep at an airport...). > >I'll keep digging through the spec, but if someone has a quick example >what ES5 code I could compile to for roughly the same semantics, that >would be helpful. From what I understand, you're saying that `super` >is lexically scoped to the `class` that is defined so I can statically >compile it out to something like `Foo.prototype.method` if `Foo` is >the parent class. Anyway, no need to trail on about this, I should >just RTFS. > >- James > > >On Mon, Dec 9, 2013 at 11:23 AM, Brendan Eich <brendan at mozilla.com> wrote: >> OnMon, Dec 9, 2013 at 10:22 AM, Allen Wirfs-Brock >> >> <allen at wirfs-brock.com> wrote: >> >>> > super is lexically scoped >> >> >> This is true. >> >> >> >> James Long wrote: >>> >>> So essentially super is an alias for `Object.getPrototypeOf(this)` ? >> >> >> But |this| is not lexically scoped, so your question's answer must be "no". >> >> /be >_______________________________________________ >es-discuss mailing list >es-discuss at mozilla.org >https://mail.mozilla.org/listinfo/es-discuss > _______________________________________________ es-discuss mailing list es-discuss at mozilla.org https://mail.mozilla.org/listinfo/es-discuss -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.mozilla.org/pipermail/es-discuss/attachments/20131209/c76aa22d/attachment.html>