> The confusing traces and debugging views > of the stack (which is not a program history!) can be mitigated.
Yes! That's my *only* concern. (And yes, after years of debugging asynchronous callbacks I'm acutely aware of the difference between stack traces and program history. In fact, I got so sick of it I hacked our test suite to store traces at key jump-off points so that I could capture stack from asynchronous callbacks back up to their originating callers. But I digress. :P) > But to your point, I think the party of the first part (the > programmer who wrote code that uses tail calls) must prevail, whether > or not they intended tail calls or expressed them explicitly. Lars > made this point recently: unless we ban implicit PTC even when not > elected by the programmer using explicit syntax, code will come to > depend on PTC and we'll need it implicitly "on" everywhere. All that > remains is the assertion. Oh yes, Lars and Anton have convinced me that requiring explicit PTC is not desirable. As I stated early on, as long as meaningful stack traces are doable with implicit PTC, I'll happily shush. So consider me shushed. _______________________________________________ Es4-discuss mailing list Es4-discuss@mozilla.org https://mail.mozilla.org/listinfo/es4-discuss
