Circular Protocol References bug

Originator:GSaccardo
Number:rdar://18061131 Date Originated:Aug 19, 2014
Status:Open Resolved:
Product:Xcode Product Version:Xcode 6 beta-6
Classification:Bug Reproducible:Always
 
Create two protocols (in the example, "FirstProtocol" and "SecondProtocol"); in both protocols, create a reference to the other one. In the example, "FirstProtocol" has a delegate of type "SecondProtocol?", "SecondProtocol" has a method that return an object of type "First Protocol". 
The HUD with the message "SourceKitService Terminated. Editor functionality temporarily limited." appears. The project will not compile anymore:

<unknown>:0: error: unable to execute command: Segmentation fault: 11
<unknown>:0: error: swift frontend command failed due to signal (use -v to see invocation)
Command /Applications/Xcode6-Beta6.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc failed with exit code 254

Steps to Reproduce:
1. Create a new project with Xcode 6 beta-6
2. Select "Swift" as the language
3. Create two protocols
4. In each protocol, create a reference to the other one

Expected Results:
Xcode should handle this case without problems

Actual Results:
Xcode terminates the SourceKitService and the project will not compile anymore.

Comments


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