Re: Constructible Exceptions from Cameron McCormack on 2012-03-24 (public-script-coord@w3.org from January to March 2012)

From: Cameron McCormack <cam@mcc.id.au>
Date: Sat, 24 Mar 2012 11:56:16 +1100
To: Marcos Caceres <w3c@marcosc.com>
CC: Marcos Caceres <marcosscaceres@gmail.com>, public-script-coord <public-script-coord@w3.org>
Message-ID: <4F6D1BB0.6000602@mcc.id.au>

Marcos Caceres:
> The use case for throwing custom WebIDL exceptions is to be able to
> implement WebIDL interfaces directly in JavaScript (when allowed by
> the presence of [Constructor])…. though my real use case is to be
> able to construct DOMExceptions in JS, I'll need to take that up with
> DOM4.

This is already possible, because exception interface objects are 
required to be function objects with a [[Call]] behaviour that 
constructs the exception.  So there is no need for [Constructor] on them.

Received on Saturday, 24 March 2012 00:56:53 UTC