Xcode 6.2: swiftc crash when casting from protocol to any to object type

Originator:segiddins
Number:rdar://20442279 Date Originated:06-Apr-2015 04:53 PM
Status:Resolved Resolved:13-Apr-2015
Product:Developer Tools Product Version:Xcode 6.2 (6C131e)
Classification:Crash/Hang/Data Loss Reproducible:Always
 
Summary:
Swift crashes when attempting to compile the following code

Steps to Reproduce:
Attempt to compile the following swift code:
import Foundation

let x: NSCopying = NSURLComponents()

(x as Any as NSURLComponents).query = "Hi"

Expected Results:
The code should compile

Actual Results:
Swift crashes, with the following output:

Stack dump:
0.	Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -interpret crash.swift -target x86_64-apple-darwin14.1.0 -target-cpu core2 -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk -color-diagnostics -module-name crash
1.	While emitting IR SIL function @top_level_code[1]    80502 segmentation fault  swift crash.swift

Regression:
Describe circumstances where the problem occurs or does not occur, such as software versions and/or hardware configurations.

Notes:
Provide additional information, such as references to related problems, workarounds and relevant attachments.

Comments


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