[thelist] Substitute for arguments.caller?

[Lee Kowalkowski]

On 21/06/07, liorean <liorean at gmail.com> wrote:
> On 21/06/07, Marcus Bristav <marcus.bristav at gmail.com> wrote:
> > Today I'm using arguments.caller to get my own stack trace whenever I
> > want to debug an exception or find out who is calling me and then
> > prints it to some div or something (yeah, I know I can use Firebug but
> > we're developing Ajax applications on IPTV STBs). Opera doesn't
> > support arguments.caller as far as I know. Is it possible to get the
> > same behaviour on Opera somehow (Opera 8 mainly)
>
> IIRC the standard has it as arguments.callee.caller, not as
> arguments.caller. See if changing to that one makes it work in Opera.

It's actually function.caller, e.g. function
abc(){alert(abc.caller);}.  Although going via arguments.callee is the
same difference, but arguments.callee only really exists to support
recursive anonymous functions.

Caller isn't defined in ECMAScript, and doesn't work in Opera
(http://www.opera.com/docs/specs/js/ecma/) or Safari (so I'm told).

You can resort to passing in your functions as parameters, not nice.
Or before you invoke a function, you can set its caller property, not
nice either (it's read-only anyway except for where its not supported,
then it'll work, but you'll also be able to set it to something
wrong).

Of course, unless Opera itself has some native stack-trace feature,
but I can't find anything about that.

-- 
Lee