Details
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Type:
Bug
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Status: Closed
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Priority:
Medium
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Resolution: Cannot Reproduce
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Component/s: LLDB for Swift
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Labels:None
Description
Swift REPL in latest snapshot crashes at once if I want to get code completion for a string. Session captured below:
Welcome to Swift version 5.0-dev (LLVM 77814f897e, Swift ea80003b0c). Type :help for assistance. 1> let str = "apple" str: String = "apple" 2> print(str. Available completions: allSatisfy(predicate: (Character) throws -> Bool(Character) throws -> Bool) -> Bool #0 0x0000555adea34814 (lldb+0x22814) #1 0x0000555adea3290c (lldb+0x2090c) #2 0x0000555adea34da8 (lldb+0x22da8) #3 0x00007f2bd880a4d0 __restore_rt (/usr/lib/libpthread.so.0+0x124d0) #4 0x00007f2bd1b66cfc PrintCompletion(_IO_FILE*, unsigned long, unsigned long, lldb_private::StringList&, lldb_private::StringList&) (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xac9cfc) #5 0x00007f2bd1b66b77 lldb_private::Editline::TabCommand(int) (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xac9b77) #6 0x00007f2bd1b6900d lldb_private::Editline::ConfigureEditor(bool)::$_13::__invoke(editline*, int)(/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xacc00d) #7 0x00007f2bd06e2d33 el_wgets (/usr/lib/libedit.so.0+0x10d33) #8 0x00007f2bd06de2d4 el_gets (/usr/lib/libedit.so.0+0xc2d4) #9 0x00007f2bd1b6874d lldb_private::Editline::GetLines(int, lldb_private::StringList&, bool&) (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xacb74d) #10 0x00007f2bd1ac1347 lldb_private::IOHandlerEditline::GetLines(lldb_private::StringList&, bool&) (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xa24347) #11 0x00007f2bd1ac1554 lldb_private::IOHandlerEditline::Run() (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xa24554) #12 0x00007f2bd1aa4d06 lldb_private::Debugger::ExecuteIOHandlers() (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xa07d06) #13 0x00007f2bd1aa908d lldb_private::Debugger::IOHandlerThread(void*)(/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xa0c08d) #14 0x00007f2bd1b71544 lldb_private::HostNativeThreadBase::ThreadCreateTrampoline(void*) (/home/segabor/.swiftenv/versions/swift-5.1-DEVELOPMENT-SNAPSHOT-2019-04-25-a/usr/bin/../lib/liblldb.so.7svn+0xad4544) #15 0x00007f2bd87ffa92 start_thread (/usr/lib/libpthread.so.0+0x7a92) #16 0x00007f2bd0a4bcd3 __GI___clone (/usr/lib/libc.so.6+0xfacd3) Segmentation fault (core dumped)
