On Sunday, 11 June 2017 at 19:51:11 UTC, ketmar wrote:
Walter Bright wrote:[...]i think, that something like `__constraint(condition, "message")` is ok, and it should be built-in, just like `__traits()`. so compiler can collect those messages, and only show 'em if the matcher is failed to find anything. yeah, another hack in interpreter, but fairly small, and should solve "what constraint is really failed" problem.
+1 Implementation wise this one is easiest ... I guess.
