To be more precise, the HTML5 IDL defines the following: typedef sequence<MessagePort> MessagePortArray; The types above are all MessagePortArray in the spec, not Array. So it seems like the intent is that they should indeed get mapped to a vanilla JS Array. I could make these attributes JS-only - that shouldn't be a huge issue since MessagePorts are currently only enabled for JS anyway (MessagePort is an empty interface for ObjC). Is that acceptable? Sam? -atw On Wed, Aug 26, 2009 at 12:34 AM, Cameron McCormack <cam@mcc.id.au> wrote:
Maciej Stachowiak:
We probably need special support for Web IDL array types in the bindings generator. Sam can probably comment n more detail. As a stopgap, we could make the relevant IDL attributes be JS only. I would check out what Web IDL says about Array - I don't think it's supposed to be reflected as just a vanilla JS Array.
Currently Web IDL says that when getting an attribute of type sequence<T>, a new JS Array object is returned. For array types, T[], a host object with particular [[Get]] and [[Put]] behaviour is meant to be used, which makes it similar to a native Array.
Both of these things are pretty speculative, and could do with review.
-- Cameron McCormack ≝ http://mcc.id.au/