Open Radar

 
Summary:
Let’s assume you have a Swift-project containing two targets (e.g. one for the App and one for Unit Tests). If the App-Target contains a public class that is not used in this target it cannot be instantiated in the Unit-Test-Target either because it will be stripped from the App-Build before the Unit-Test-Target has a chance to link against it.

Steps to Reproduce:
1. Open the attached sample project
2. Try to test the target on an actual device (Cmd-U)

Expected Results:
The test should compile and pass

Actual Results:
The linker fails with the error message:
Undefined symbols for architecture armv7:
  "__TMaC14BugDemoProject6ClassA", referenced from:
      __TFC19BugDemoProjectTests19BugDemoProjectTestscfMS0_FT10invocationGSQCSo12NSInvocation__S0_ in BugDemoProjectTests.o
      __TFC19BugDemoProjectTests19BugDemoProjectTestscfMS0_FT8selectorV10ObjectiveC8Selector_S0_ in BugDemoProjectTests.o
      __TFC19BugDemoProjectTests19BugDemoProjectTestscfMS0_FT_S0_ in BugDemoProjectTests.o
      _get_field_types_BugDemoProjectTests in BugDemoProjectTests.o
  "__TFC14BugDemoProject6ClassACfMS0_FT_S0_", referenced from:
      __TFC19BugDemoProjectTests19BugDemoProjectTestscfMS0_FT10invocationGSQCSo12NSInvocation__S0_ in BugDemoProjectTests.o
      __TFC19BugDemoProjectTests19BugDemoProjectTestscfMS0_FT8selectorV10ObjectiveC8Selector_S0_ in BugDemoProjectTests.o
      __TFC19BugDemoProjectTests19BugDemoProjectTestscfMS0_FT_S0_ in BugDemoProjectTests.o

Version:
Xcode Version 6.0 (6A280e) on OS X Yosemite Beta 6 compiling for iOS 8 Beta 5

Notes:


Configuration:
Everything works as expected on the iPhone Simulator
The test compiles and passes if ClassA is used at least one in the App-Target (may be achieved by toggling the line comment in ViewController.swift:13

Attachments:
https://dl.dropboxusercontent.com/u/26477957/BugDemoProject.zip