On May 13, 2010, at 4:57 PM, Erik Arvidsson wrote: > I'm surprised no one has said this yet but here goes: > > ArrayBuffer needs to extend Array. In other words instances of > ArrayBuffer needs to also be instances of Array > > var ab = new ArrayBuffer; > assert(ab instanceof ArrayBuffer); > assert(ab instanceof Array); > > You will also need to make sure that all the internal methods are > defined. See 8.12 Algorithms for Object Internal Methods of ES5. For > example what does it mean to do [[Delete]] on a byte array?
Similarly, I know that there's some concern about mutability, fixed-length, etc. for a byte-handling array type. The current TypedArray spec only deals with fixed arrays which is somewhat at odds with the Array type ancestry. Finding a way to have a mutable version of TypedArray to better fill the normal Array contract seems a natural extension of the current proposal. > On Thu, May 13, 2010 at 05:57, Arun Ranganathan <[email protected]> wrote: >> Greetings, TC-39 WG and script mavens! >> >> Browser vendors participating in the WebGL WG intend to implement the "Typed >> Arrays" specification, allowing for greater manipulation of binary data: >> >> https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/doc/spec/TypedArray-spec.html >> >> The draft specification (a work in progress) resides at Khronos, which is >> typically an unusual home for something integral to the rest of the web >> platform. Khronos is where we work on WebGL, which enjoys Google, Opera, >> Mozilla, and Apple participation, amongst other organizations. >> >> The general usefulness of constructs such as ArrayBuffers (covered in the >> "Typed Arrays" draft specification) lends itself to other web platform >> specifications, such as the File API, parts of which are implemented in >> Firefox 3.6.3: >> >> http://dev.w3.org/2006/webapi/FileAPI/ >> >> In the above draft (also a work in progress), the Blob interface exposes an >> ArrayBuffer property, which can then be used with different views. >> >> While implementations are currently proceeding unimpeded by standards-track >> considerations, it would be useful if Typed Arrays were taken on as a work >> item by TC-39, for more general inclusion in JavaScript. Should it live >> elsewhere, and if so, where? >> >> -- A* >> _______________________________________________ >> es-discuss mailing list >> [email protected] >> https://mail.mozilla.org/listinfo/es-discuss >> > > > > -- > erik -- Alex Russell [email protected] [email protected] BE03 E88D EABB 2116 CC49 8259 CF78 E242 59C3 9723 _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
