As Lars suggested, we have bigger fish to fry, but we settled on union syntax quickly and were content to stay there. I'm not against | instead of , and if enough people think it's the right user interface, we could consider it again. I'm not saying it's a good use of time to fuss over this, but it's "fixable" if (T, U, ...) is not as good as (T | U | ...).
Recall that ES4 and indeed JavaScript do not have tuples, so we want to use [T, U] for the array structural type describing a tuple of at least index 0 of type T and index 1 of type U. If we ever did add tuples, then Yuh-Ruey has a point I think: we might rather use (T | U) for union of T and U, and (T, U) -- or possibly (T, U,) to match expression syntax (which would have to be (e1, e2,) to avoid ambiguity with comma expression) for tuple type. /be _______________________________________________ Es4-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es4-discuss
