Re: [selectors-api] Extended Attribute [NoNull] in the IDL

• From: Boris Zbarsky <bzbarsky@MIT.EDU>
• Date: Fri, 02 May 2008 14:56:37 -0500
• To: Lachlan Hunt <lachlan.hunt@lachy.id.au>
• CC: "Web APIs WG (public)" <public-webapi@w3.org>
• Message-ID: <481B71F5.4070109@mit.edu>

Lachlan Hunt wrote:
> That's in the Bindings4Dom spec.  I'm trying to make the IDL conform to it.
> 
> http://dev.w3.org/2006/webapi/Binding4DOM/#NoNull

So the relevant part of that spec is:

   How implementations treat the assignment of a null  value to an
   attribute with the [NoNull]  extended attribute, or passing a null
   value as a [NoNull] operation argument, is specific to the language
   binding.

The example indicates that in ECMAScript passing null as a DOMString just passes 
the string "null".  What is the benefit of this behavior over treating null as 
the empty string, which is what I presume happens if the [NoNull] is not specified?

What do existing implementations do here?

-Boris

Received on Friday, 2 May 2008 19:57:21 UTC