Lars Hansen, back a few years and based on his Opera experience developing 
Futhark, said that EBay (at least -- possibly other sites) used 
Function.prototype.toString to decompile a function, edit the source with 
string and regexp hacks, and recompile with Function (or possibly eval), for 
self-modifying code in JS.

This means web compatibility rules out dropping high-fidelity toString on 
function objects just because the implementation is on a memory-poor device. If 
too memory-poor, no EBay for you! :-P

/be

On Sep 15, 2010, at 8:04 PM, Erik Arvidsson wrote:

> As far as I remember some Opera mobile versions don't return the code
> in Function.prototype.toString.
> 
> A lot of JS frameworks today use the Function.prototype.toString to
> find references to super/base but they do fallback on slower paths if
> the toString method does not provide the code of the function.
> 
> -- 
> erik
> _______________________________________________
> es-discuss mailing list
> [email protected]
> https://mail.mozilla.org/listinfo/es-discuss

_______________________________________________
es-discuss mailing list
[email protected]
https://mail.mozilla.org/listinfo/es-discuss

Reply via email to