> On Jan 31, 2017, at 1:59 PM, Jim Ingham <jing...@apple.com> wrote: > > From the symptoms, it looks like the compiler is not holding onto > "background" because it is no longer used. That's a desirable thing to do > for optimized code, but not at -O0. > > What happens if you rewrite this to: > > let background = sceneView.snapshot().cgImage! > let cropped = background.cropping(to: overlayView.frame) > UIGraphicsBeginImageContextWithOptions(overlayView.frame.size, > false, 1.0) > print(background)
I've been battling H3N2 so I only got a chance to try this now. Indeed, the 'background' variable is "alive" in this version, I assume because of the print() that follows? Should I file through the normal Apple Bug Reporter, or is there a better mechanism for Swift-related issues? _______________________________________________ swift-users mailing list swift-users@swift.org https://lists.swift.org/mailman/listinfo/swift-users
