On Aug 23, 2008, at 1:23 PM, Maciej Stachowiak wrote: > One possible way to achieve "fail fast" in a library only solution > would be to specify that Decimal.prototype.valueOf always throws an > exception. This would make an attempt to add or multiply using the > operator throw, but would still allow decimal numbers to be printed, > and would allow for explicit conversion methods.
We talked about that, and it seemed necessary to future-proof, but it was not championed by anyone, and Adam Peller (of IBM, filling in for Sam) was not able to say "yea" or "nay". Throwing from valueOf (or a decimal [[DefaultValue]] override, equivalently) still looks unusably crufty: relationals and equality operators throw given a Decimal operand. Evaluation rules that pass a "number" hint could be made to work, but no-hint cases like + and the comparisons suffer. I'd rather see operators specified, but without any rushing for 3.1, or slipping 3.1 just for Decimal-with-operators. /be _______________________________________________ Es-discuss mailing list Es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
