On Sep 15, 2008, at 7:51 PM, Mark S. Miller wrote:
On Mon, Sep 15, 2008 at 6:16 PM, Brendan Eich <[EMAIL PROTECTED]>
wrote:
On Sep 16, 2008, at 1:54 AM, Mark S. Miller wrote:
This is also badly incompatible. Global functions are used as
methods of their window objects. Calling them via this.func() or
otherFrame.func() works, but so do calls to func() from the same
window.
Since there's only one window per JS global object (obviously,
since they're the same object), all the methods of the window could
already be bound to their window,
You're proposing to bind |this| to all window functions in strict
mode?
Worse. Since strict mode is only per program-unit, not per global
object (frame), it makes no sense for such binding to be specific to
strict mode. Rather, I'm proposing/asking whether it would be
noticeably incompatible if all browser-provided window functions
were bound to their window, period. Note that this need not be
implemented or specified in terms of a specific 'bind' operation. It
suffices to define all the browser-provided widow functions to refer
to their window as 'window' rather than as 'this'.
That would not be compatible with current Safari/WebKit behavior, and
it may be a compatibility risk. I think anyone proposing this change
should do research to determine the scope of the risk, and our default
position should be "no compatibility-breaking changes until proven
relatively safe".
Regards,
Maciej
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