> > Annotating that a parameter of a closure should not escape the closure is > probably a worthwhile thing to have, anyway. Currently we only allow that for > function-type parameters, but there are other parameters you might give (such > as the pointer in `String.withCString()`’s closure) which should not escape > their context.
It certainly needs to be at least explicitly documented somewhere. I’ve seen people use it in published code to obtain a pointer to (fro example) the bytes in an array without realising that the storage could easily go away. > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution _______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
