41126633: Changes in library’s file are not compiled until doing a clean build

[openradar-mirror]

Description

Summary: We have a project structure where we have a library included via cocoapods as a so-called development-pod. Whenever changes are made in a file inside the library they are not re-compiled when building our app. Only a clean build helps to make changes available in the app.

Steps to Reproduce: Have a project setup similar to our (see the attached example project). Open the attached workspace and run the app. You will notice a crash on viewDidLoad() of the ViewController. There you will see further instructions to experience the issue. For completeness here they are again:

• Run the app
• Experience a fatal error
• Remove the line where the fatal error is created
• Run the app again (NO clean build)
• Observe that the app will still be terminated by the fatal error you just removed
• Do a clean build to finally get rid of the fatal error

Expected Results:

• App does not crash anymore after removing the fatalError from the library

Actual Results:

• App still crashes because of that fatalError
• Breakpoints don’t work either because the source you see and the compiled one are not the same anymore

Version/Build: Xcode 10.0

Configuration: Project with cocoapods integration of self-owned library.

- Product Version: Xcode 10 Created: 2018-10-09T08:01:32.927029 Originated: 2018-06-14T00:00:00 Open Radar Link: http://www.openradar.me/41126633

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[openradar-mirror]

Modified: 2018-10-09T08:01:12.126360

[openradar-mirror]

Modified: 2018-10-09T08:02:03.975133

[openradar-mirror]

Modified: 2018-10-09T08:01:32.927250

[Speakus]

Issue created by maxkattner: https://github.com/CocoaPods/CocoaPods/issues/8073#issuecomment-420911314 and still open...