Some Typed Objects Confusion

Andrea Giammarchi andrea.giammarchi at gmail.com
Wed Aug 21 12:51:05 PDT 2013


I guess you would not import/export Object, Boolean and String from a
module (while Any will be exported .. uhm, feels weird) ... but for
`instanceof` consistency sake I agree either constructors or lowered_cases
pseudo "types"


On Wed, Aug 21, 2013 at 12:26 PM, Dmitry Lomov <dslomov at chromium.org> wrote:

> Hmm really? I am not sure - how this reconciles with existing Object and
> String?
> Even if this is imported from a module, the clashing will be unfortunate.
>
> Dmitry
>
>
> On Wed, Aug 21, 2013 at 9:02 PM, David Herman <dherman at mozilla.com> wrote:
>
>> Any, String and Object should still be uppercase. The naming convention
>> is: value types lowercase, reference types uppercase.
>>
>> Dave
>>
>> On Aug 21, 2013, at 4:21 AM, Dmitry Lomov <dslomov at chromium.org> wrote:
>>
>> > string, boolean, object and any are all lowercase (we should fix the
>> wiki)
>> >
>> > FWIW, I am already working on a new version of polyfill. It is fully
>> ES5.
>> > Here is a pull request: https://github.com/dherman/structs.js/pull/12- I'll merge it soon, and work more to cover everything in the proposal.
>> >
>> > Thanks,
>> > Dmitry
>> >
>> >
>> >
>> > On Wed, Aug 21, 2013 at 3:21 AM, Andrea Giammarchi <
>> andrea.giammarchi at gmail.com> wrote:
>> > sorry, point 3 was actually the question about point 2
>> >
>> >
>> > On Tue, Aug 20, 2013 at 6:20 PM, Andrea Giammarchi <
>> andrea.giammarchi at gmail.com> wrote:
>> > Uhm, just a couple of extra question about that page if/when you have
>> time:
>> >       • string and boolean are mentioned, but nowhere in your
>> `struct.js` prolyfill code. Will string and boolean be accepted?
>> >       • `Object` and `Any` are mentioned, but exported as object and
>> any in your `struct.js` prolyfill example. W
>> >       • Which is the right way?
>> > The reason I am asking is to be able to create code that does
>> absolutely nothing (for performance reason) but will look like the real
>> thing so I can start experimenting with static structures and possibly a
>> develop VS production version of an ES3 to ES5 compatible polyfill since I
>> believe your code won't run anywhere except in SpiderMonkey (which is OK
>> but it's not suitable for a lightweight migration to "structure like" logic)
>> >
>> > Thanks.
>> >
>> >
>> > On Tue, Aug 20, 2013 at 4:55 PM, Andrea Giammarchi <
>> andrea.giammarchi at gmail.com> wrote:
>> > Awesome, thanks!
>> >
>> >
>> > On Tue, Aug 20, 2013 at 4:12 PM, David Herman <dherman at mozilla.com>
>> wrote:
>> > On Aug 20, 2013, at 1:31 PM, Andrea Giammarchi <
>> andrea.giammarchi at gmail.com> wrote:
>> >
>> > > [In this page](
>> http://wiki.ecmascript.org/doku.php?id=harmony:typed_objects), and in
>> the latest meeting note too, I can read both uint8 and Uint8, as example.
>> >
>> > Bug. Fixed, thanks.
>> >
>> > > **The Question**
>> > > How is `new StructType({x:Uint32, y:Uint32})` supposes to understand
>> the type? `instanceof Uint32` or `typeof v === "uint32"` or ... both in
>> case of `boolean` and `string` ?
>> >
>> > Neither. It tells you that the x and y fields have typeof 'number' and
>> that their values are constrained to be integers in the range [0, 2^32).
>> >
>> > > A bonus question would be: does anybody know when this stuff is
>> planned to go out? Not a single beta/alpha channel is exposing anything at
>> all so far.
>> >
>> > Nikhil Marathe and Niko Matsakis are actively working on the
>> implementation for SpiderMonkey:
>> >
>> >     https://bugzilla.mozilla.org/show_bug.cgi?id=578700
>> >
>> > Dmitriy Lomov is actively working on updating the prollyfill to match
>> the current API:
>> >
>> >     https://github.com/dherman/structs.js
>> >     https://github.com/dherman/structs.js/pull/12
>> >
>> > Not sure if anyone on the V8 team (which includes Dmitriy) has started
>> implementation but I believe they're interested. Right now Dmitriy is
>> focused on the prollyfill and spec.
>> >
>> > Dave
>> >
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > es-discuss mailing list
>> > es-discuss at mozilla.org
>> > https://mail.mozilla.org/listinfo/es-discuss
>> >
>> >
>>
>>
>
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