function caller?

[Marc Guillemot]

Hi,

in browsers something like:
----------
function myFunc() {
alert(myFunc.caller)
}
myFunc()
function foo() { myFunc() }
foo()
----------
will alert "null" and "function foo() { ...".

Rhino doesn't support this and it seems not to be in the ECMA standard.

Would you accept this in some way in Rhino?

Cheers,
Marc.
--
Blog: http://mguillem.wordpress.com

[Norris Boyd]

I intentionally left this out since it was non-ECMA and the caller-
callee pair can only be supported by creating a call frame for every
invocation, which would have a significant negative impact on
performance for compiled code.

An option would be to support in interpreter mode only, although I've
tried to avoid having any functionality differences between the two
modes.

So how important is this as a feature?

--N

[Marc Guillemot]

interpreted mode would be ok for us.
The feature is as always important for HtmlUnit but for instance less
than the properties order in ScriptableObject ;-)