Swift string interpolation causing memory leak with common usage

Number:rdar://26761490 Date Originated:12-Jun-2016 02:48 PM
Status:Closed Resolved:1-Sept-2017 09:44 AM
Product:Developer Tools Product Version:Xcode 7.3.1
Classification:Serious Bug Reproducible:Always
We are seeing a memory leak in Swift string interpolation in Alamofire. We've built a sample project that produces the leak. We've also switched over to using string concatenation temporarily as a workaround.

* https://github.com/Alamofire/Rdar-StringInterpolationMemoryLeak

Steps to Reproduce:
1) Open the attached sample project
2) Run it within Leaks
3) Watch it leak when printing out the `Timeline` object

Expected Results:
No leaks would appear in the Leaks Instrument.

Actual Results:
Leaks are appearing in the Leaks Instrument.

Version 7.3 (7D175) and Xcode 7.3.1 (7D1014) on OS X 10.11.4



'String Interpolation Memory Leak.zip' was successfully uploaded.


I was able to verify that with Xcode 9 beta 6, the leaks have been resolved. Thank you for the fix!

By christian.noon at Sept. 1, 2017, 4:43 p.m. (reply...)

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