Swift 1.2b1: Top Level Derived Vars Crash Compiler in iOS App

Originator:wetzeal
Number:rdar://19773153 Date Originated:09-Feb-2015 05:26 PM
Status:Closed Resolved:23-Feb-2015
Product:Developer Tools Product Version:Xcode 6.3 (6D520o)
Classification:Crash/Hang/Data Loss Reproducible:Always
 
Summary:
If the following code is added to the top level of an iOS app, the Swift compiler will crash:
var test: Bool  {
    return false
}

Steps to Reproduce:
1. Create an iOS app
2. Add the following code in top level:
var test: Bool  {  return false }

Expected Results:
The app builds

Actual Results:
The swift compiler crashes with the following:
0  swift                    0x0000000105133d38 llvm::sys::PrintStackTrace(__sFILE*) + 40
1  swift                    0x0000000105134214 SignalHandler(int) + 452
2  libsystem_platform.dylib 0x00007fff90173f1a _sigtramp + 26
3  libsystem_platform.dylib 0x000000000000ffff _sigtramp + 1877590271
4  swift                    0x0000000104a2bd9c frontend_main(llvm::ArrayRef<char const*>, char const*, void*) + 7180
5  swift                    0x0000000104a29fe6 main + 1814

Regression:
This did not happen with Swift 1.1

Comments


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