47057 - document.JSError object

Status: RESOLVED WONTFIX

(Core :: DOM: Core & HTML, enhancement, P4)

Description

[Adrian]

There should be a document.JSError object : 
 document.JSError.error() - returns true if JS error ocuuried
 document.JSErorr.line()  - returns the line number with error

etc.

Comment 1

[Phil Schwartau]

An embedding issue. Assigning to DOM Level 0 for further triage or acceptance -

Comment 2

[Johnny Stenback (:jst)]

This would be a non-standard extension to the document API and thus this will
not happen for ns6, marking Future for now. An other possible solution to this
could maybe be to add a way to access the javascript log from javascript and
then the error info could be accessed that way...

Comment 3

[Johnny Stenback (:jst)]

Mass-reassigning bugs to [e-mail]

Comment 4

[Boris Zbarsky [:bzbarsky]]

Do we really want this?  Isn't this what error handlers are for?

Comment 5

[Alex Vincent [:WeirdAl]]

I'd say we definitely do not want this.  What if multiple errors happen (which
isn't too rare a situation if you have a syntax error and then call a function
on the same script)?

More to the point, ECMAScript Error objects already provide a boatload more
information.  try...catch is a friend of mine, as is the Error.prototype.stack
that Brendan implemented for us.

Recommend WONTFIX.

Comment 6

[Brendan Eich [:brendan]]

Where did this idea come from?  It's a bad idea, in any case, and we shouldn't
do any such thing.  Pigeon-holes such as window.event (which was perpetrated on
the world due to VBScript lameness, I was told) we should likewise never
emulate.  I'm tempted to mark INVALID, but it's not a big deal.

/be