swift segfaults with enum inside of generic class

Originator:jeremybanks.ca
Number:rdar://17330553 Date Originated:16-Jun-2014 03:44 PM
Status:Open Resolved:
Product:Developer Tools Product Version:
Classification: Reproducible:Always
 
Summary:
Swift segfault when I define an enum with at least one possible value inside of a parameterized class.

Steps to Reproduce:
Attempt to compile the following Swift code, either in Xcode or using command line, or the REPL.

class Promise<T> {
  enum Value {
    case Success
  }
}


Expected Results:
The code would compile successfully, or would fail and display a useful error, if this is not permitted.

Actual Results:
In Xcode, the build fails with a segfault. If the code is put into the REPL, the REPL crashes with "SIGEGV (Address boundary error)"

Version:
Xcode Beta Version 6.0 (6A215l)
OS X 10.9.3 (13D65)

Notes:


Configuration:
This has only been tested on my system.



Attachments:



repl-session.txt:

jeremy:~/s/HelloStack>
/Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift
Welcome to Swift!  Type :help for assistance.
  1> class Promise<T> {
  2.       enum Value {
  3.               case Success
  4.       }
  5. }

fish: Job 1, '/Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift' terminated by signal SIGSEGV (Address boundary error)
jeremy:~/s/HelloStack>



xcode-errors.txt:

CompileSwift normal x86_64 com.apple.xcode.tools.swift.compiler
    cd /Users/jeremy/src/HelloStack
    /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -target x86_64-apple-macosx10.9 -module-name HelloStack -O0 -sdk /Applications/Xcode6-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk -g -module-cache-path /Users/jeremy/Library/Developer/Xcode/DerivedData/ModuleCache -I /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Products/Debug -F /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Products/Debug -c -j4 /Users/jeremy/src/HelloStack/HelloStack/main.swift -output-file-map /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/HelloStack-OutputFileMap.json -serialize-diagnostics -emit-dependencies -emit-module -emit-module-path /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/HelloStack.swiftmodule -Xcc -iquote -Xcc /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-generated-files.hmap -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-own-target-headers.hmap -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-all-target-headers.hmap -Xcc -iquote -Xcc /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-project-headers.hmap -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Products/Debug/include -Xcc -I/Users/jeremy/src/HelloStack/Pods/Headers -Xcc -I/Users/jeremy/src/HelloStack/Pods/Headers/AFNetworking -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/DerivedSources/x86_64 -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -DCOCOAPODS=1 -emit-objc-header -emit-objc-header-path /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/HelloStack-Swift.h

0  swift                    0x000000010f34b608 llvm::sys::PrintStackTrace(__sFILE*) + 40
1  swift                    0x000000010f34baf4 SignalHandler(int) + 452
2  libsystem_platform.dylib 0x00007fff954005aa _sigtramp + 26
3  libsystem_platform.dylib 0x00007fff514f1058 _sigtramp + 3155102408
4  swift                    0x000000010f55d738 (anonymous namespace)::DeclChecker::computeEnumElementInterfaceType(swift::EnumElementDecl*) + 136
5  swift                    0x000000010f55a499 swift::ASTVisitor<(anonymous namespace)::DeclChecker, void, void, void, void, void, void>::visit(swift::Decl*) + 10777
6  swift                    0x000000010f55cb84 (anonymous namespace)::DeclChecker::visitEnumDecl(swift::EnumDecl*) + 1460
7  swift                    0x000000010f557cee swift::ASTVisitor<(anonymous namespace)::DeclChecker, void, void, void, void, void, void>::visit(swift::Decl*) + 622
8  swift                    0x000000010f558ba7 swift::ASTVisitor<(anonymous namespace)::DeclChecker, void, void, void, void, void, void>::visit(swift::Decl*) + 4391
9  swift                    0x000000010f54b8c0 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) + 112
10 swift                    0x000000010f537748 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, unsigned int) + 1256
11 swift                    0x000000010e935b80 swift::CompilerInstance::performSema() + 2048
12 swift                    0x000000010e70facd frontend_main(llvm::ArrayRef<char const*>, char const*, void*) + 1885
13 swift                    0x000000010e70f35d main + 1533
14 libdyld.dylib            0x00007fff932285fd start + 1
Stack dump:
0.	Program arguments: /Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c -primary-file /Users/jeremy/src/HelloStack/HelloStack/main.swift -enable-objc-attr-requires-objc-module -target x86_64-apple-macosx10.9 -module-name HelloStack -sdk /Applications/Xcode6-Beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk -I /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Products/Debug -F /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Products/Debug -g -module-cache-path /Users/jeremy/Library/Developer/Xcode/DerivedData/ModuleCache -Xcc -iquote -Xcc /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-generated-files.hmap -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-own-target-headers.hmap -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-all-target-headers.hmap -Xcc -iquote -Xcc /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/HelloStack-project-headers.hmap -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Products/Debug/include -Xcc -I/Users/jeremy/src/HelloStack/Pods/Headers -Xcc -I/Users/jeremy/src/HelloStack/Pods/Headers/AFNetworking -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/DerivedSources/x86_64 -Xcc -I/Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -DCOCOAPODS=1 -emit-module-doc-path /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/main~partial.swiftdoc -O0 -emit-module-path /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/main~partial.swiftmodule -serialize-diagnostics-path /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/main.dia -emit-dependencies-path /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/main.d -o /Users/jeremy/Library/Developer/Xcode/DerivedData/HelloStack-gwarvffjlodyoufmfyvhoqnemiyy/Build/Intermediates/HelloStack.build/Debug/HelloStack.build/Objects-normal/x86_64/main.o 
1.	While type-checking 'Promise' at /Users/jeremy/src/HelloStack/HelloStack/main.swift:1:1
<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-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift failed with exit code 254

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