Certain string/pattern pairs cause [NSString isLike:] to hang, spinning at 100% cpu.
Originator: | stevenkramer1 | ||
Number: | rdar://31112184 | Date Originated: | 17 Mar 2017 |
Status: | Closed | Resolved: | |
Product: | macOS + SDK | Product Version: | 10.12.3 |
Classification: | Hang/Freeze | Reproducible: | 100% |
Summary: isLike: never returns for magic strings/patterns Steps to Reproduce: With Xcode 8.1 or 8.3 installed, enter the following at a command prompt: echo 'import Foundation ; if true { let pattern="*expir*" ; let name="resetAccountPasswordWithCancellable" ; print ("Starting match"); print ((name.lowercased() as NSString).isLike(pattern)) }' | swift Expected Results: Returns instantly with pattern match result. Actual Results: Hangs indefinitely. Version: Sierra / El Capitan
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