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[SR-9376] Private CodingKeys in another file messes up Codable synthesis #51842

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tkrajacic opened this issue Nov 29, 2018 · 5 comments
Open

[SR-9376] Private CodingKeys in another file messes up Codable synthesis #51842

tkrajacic opened this issue Nov 29, 2018 · 5 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. Codable Area → standard library: `Codable` and co. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software

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@tkrajacic
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Previous ID SR-9376
Radar rdar://problem/59998063
Original Reporter @tkrajacic
Type Bug

Attachment: Download

Environment

Tested with Xcode Version 10.1 (10B61) included toolchain and the latest master (2018-11-28a)

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, Codable, CompilerCrash
Assignee None
Priority Medium

md5: 8fb0cf9840008677d56ea3c469ce3c08

Issue Description:

This traps the compiler when using `incremental` compilation mode but not when using `whole module` mode (see attached sample project for easy testing):

Property.swift

struct Property: Decodable {
    var key: String
}

Property+Codable.swift

extension Property {
    private enum CodingKeys: String, CodingKey {
        case key
    }
}

with the result:

Global is external, but doesn't have external or weak linkage!
%swift.type* @"$S14CodableCrasher8PropertyV10CodingKeys33_1AC7B054C26C4327D88753EB7D2E403CLLON"
<unknown>:0: error: fatal error encountered during compilation; please file a bug report with your project and the crash log
<unknown>:0: note: Broken module found, compilation aborted!
0  swift                    0x000000010542f59a PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x000000010542ed4e SignalHandler(int) + 302
2  libsystem_platform.dylib 0x00007fff592edb3d _sigtramp + 29
3  libsystem_platform.dylib 0x00007ffeee5cad20 _sigtramp + 2502808064
4  libsystem_c.dylib        0x00007fff591ac1c9 abort + 127
5  swift                    0x00000001016b4a67 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*)::$_1::__invoke(void*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) + 519
6  swift                    0x00000001053e31c8 llvm::report_fatal_error(llvm::Twine const&, bool) + 280
7  swift                    0x00000001053e30ab llvm::report_fatal_error(char const*, bool) + 43
8  swift                    0x00000001053aa6ec (anonymous namespace)::VerifierLegacyPass::doFinalization(llvm::Module&) + 204
9  swift                    0x0000000105350763 llvm::FPPassManager::doFinalization(llvm::Module&) + 83
10 swift                    0x0000000105355b57 llvm::legacy::FunctionPassManagerImpl::doFinalization(llvm::Module&) + 71
11 swift                    0x000000010187b1b5 swift::performLLVM(swift::IRGenOptions&, swift::DiagnosticEngine*, llvm::sys::SmartMutex<false>*, llvm::GlobalVariable*, llvm::Module*, llvm::TargetMachine*, swift::version::Version const&, llvm::StringRef, swift::UnifiedStatsReporter*) + 4533
12 swift                    0x00000001016c1242 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 49170
13 swift                    0x00000001016b1d35 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7717
14 swift                    0x0000000101657965 main + 1349
15 libdyld.dylib            0x00007fff5910408d start + 1
Stack dump:
0.  Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c -primary-file /Users/tkrajacic/Downloads/CodableCrasher/CodableCrasher/Property.swift /Users/tkrajacic/Downloads/CodableCrasher/CodableCrasher/Property+Codable.swift /Users/tkrajacic/Downloads/CodableCrasher/CodableCrasher/AppDelegate.swift -emit-module-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property~partial.swiftmodule -emit-module-doc-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property~partial.swiftdoc -serialize-diagnostics-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.dia -emit-dependencies-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.d -emit-reference-dependencies-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.swiftdeps -target x86_64-apple-macosx10.14 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -I /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Products/Debug -F /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Products/Debug -enable-testing -g -module-cache-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 4.2 -enforce-exclusivity=checked -Onone -D DEBUG -serialize-debugging-options -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-generated-files.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-own-target-headers.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-all-target-headers.hmap -Xcc -iquote -Xcc /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-project-headers.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Products/Debug/include -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources/x86_64 -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/tkrajacic/Downloads/CodableCrasher -module-name CodableCrasher -o /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.o -index-store-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-efdmtzdcpqqlnnhkijqdnqchqgjg/Index/DataStore -index-system-modules 
error: Abort trap: 6

This only happens when the conformance is in a separate file.

Possibly related to https://bugs.swift.org/browse/SR-4370 ?
@belkadan
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Contributor

Probably not related. That's really scary that it's trying to use the CodingKeys from the other file! Fortunately it's probably an easy fix: we need to do a smarter lookup when synthesizing Codable implementations.

@tkrajacic
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Yeah sry, I just went through all the other bug reports with the same error and there were only very few open.

A poor man's check for related bugs 🙂

@tkrajacic
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This still crashes when using Xcode 10.2 in Swift 4.2 compiler mode. Then I even get the crash-reporter popup with the following:

Process: swift [39067]Process: swift [39067]Path: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftIdentifier: swiftVersion: 1001.0.69.5Code Type: X86-64 (Native)Parent Process: ??? [39065]Responsible: swift [39067]User ID: 501
Date/Time: 2019-04-02 06:21:13.591 +0200OS Version: Mac OS X 10.14.4 (18E226)Report Version: 12Anonymous UUID: 3EA4B8E2-6EF8-2F9C-35F9-8F59E7857CB2
Sleep/Wake UUID: F4DB7AC1-19F7-4CAA-B7AE-677F0FEFA672
Time Awake Since Boot: 220000 secondsTime Since Wake: 5000 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)Exception Codes: 0x0000000000000000, 0x0000000000000000Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:abort() called
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread0 libsystem_kernel.dylib 0x00007fff7bfc62c6 __pthread_kill + 101 libsystem_pthread.dylib 0x00007fff7c07bbf1 pthread_kill + 2842 libsystem_c.dylib 0x00007fff7bf30745 __abort + 1443 libsystem_c.dylib 0x00007fff7bf306b5 abort + 1424 swift 0x0000000105143aa8 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*)::$1::invoke(void*, std::1::basic_string<char, std::1::char_traits<char>, std::_1::allocator<char> > const&, bool) + 9365 swift 0x000000010929c7d6 llvm::report_fatal_error(llvm::Twine const&, bool) + 2786 swift 0x000000010929c6bb llvm::report_fatal_error(char const*, bool) + 437 swift 0x000000010926289c (anonymous namespace)::VerifierLegacyPass::doFinalization(llvm::Module&) + 2048 swift 0x0000000109206823 llvm::FPPassManager::doFinalization(llvm::Module&) + 519 swift 0x000000010920e212 llvm::legacy::FunctionPassManagerImpl::doFinalization(llvm::Module&) + 8210 swift 0x0000000105329055 swift::performLLVM(swift::IRGenOptions&, swift::DiagnosticEngine*, llvm::sys::SmartMutex<false>, llvm::GlobalVariable, llvm::Module*, llvm::TargetMachine*, swift::version::Version const&, llvm::StringRef, swift::UnifiedStatsReporter*) + 459711 swift 0x000000010515091e performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 5156612 swift 0x00000001051406de swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 686213 swift 0x00000001050de7be main + 124614 libdyld.dylib 0x00007fff7be8b3d5 start + 1
Thread 0 crashed with X86 Thread State (64-bit): rax: 0x0000000000000000 rbx: 0x000000011114d5c0 rcx: 0x00007ffeeab44958 rdx: 0x0000000000000000 rdi: 0x0000000000000307 rsi: 0x0000000000000006 rbp: 0x00007ffeeab44990 rsp: 0x00007ffeeab44958 r8: 0x0000000000000000 r9: 0x0000000000989680 r10: 0x0000000000000000 r11: 0x0000000000000206 r12: 0x0000000000000307 r13: 0x00007ffeeab44a10 r14: 0x0000000000000006 r15: 0x000000000000002d rip: 0x00007fff7bfc62c6 rfl: 0x0000000000000206 cr2: 0x00007fbf73cd1008 Logical CPU: 0Error Code: 0x02000148Trap Number: 133``Binary Images: 0x1050b3000 - 0x109ca7ffb swift (1001.0.69.5) <05F55527-3D9F-3E64-A0EB-7B8762E34A07> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift 0x1110ab000 - 0x1111156ef dyld (655.1.1) <F217F7F8-A795-3109-B77F-B1E2277F3E3B> /usr/lib/dyld 0x7fff78c4f000 - 0x7fff78c50ffb libSystem.B.dylib (1252.250.1) <72841192-B0C9-36A0-8E55-ED651EADEF08> /usr/lib/libSystem.B.dylib 0x7fff78e92000 - 0x7fff78ee5ff7 libc.1.dylib (400.9.4) <446DAE5E-4E97-3E4B-B2A3-AC0A74C0E453> /usr/lib/libc.1.dylib 0x7fff78ee6000 - 0x7fff78efbff7 libcabi.dylib (400.17) <A2D1FDAD-E10F-3E53-958F-CB6BC8485767> /usr/lib/libc+abi.dylib 0x7fff79991000 - 0x7fff799aeff7 libedit.3.dylib (50.200.2) <3A226EAE-7A18-3C63-ACFE-D2F272FEE034> /usr/lib/libedit.3.dylib 0x7fff7a095000 - 0x7fff7a0c5fff libncurses.5.4.dylib (53.200.3) <710A5A0A-8501-384F-8F0A-722B56CC6016> /usr/lib/libncurses.5.4.dylib 0x7fff7a649000 - 0x7fff7adcefdf libobjc.A.dylib (756.2) <4F86FC7C-496B-3E68-8A74-1EA2BA22FBCC> /usr/lib/libobjc.A.dylib 0x7fff7b51f000 - 0x7fff7b531ff7 libz.1.dylib (70.200.4) <FDF169F3-F992-3E8E-B3F7-D4134FEBAE41> /usr/lib/libz.1.dylib 0x7fff7bd0e000 - 0x7fff7bd12ff3 libcache.dylib (81) <9A8C27B0-49C9-337F-8BE2-37171ED2D8EE> /usr/lib/system/libcache.dylib 0x7fff7bd13000 - 0x7fff7bd1dff3 libcommonCrypto.dylib (60118.250.2) <17C4F395-9FF0-331F-8167-5E85AA3588E9> /usr/lib/system/libcommonCrypto.dylib 0x7fff7bd1e000 - 0x7fff7bd25ff7 libcompiler_rt.dylib (63.4) <8CB2B2B6-2C55-3733-9842-0E037AE3F46A> /usr/lib/system/libcompiler_rt.dylib 0x7fff7bd26000 - 0x7fff7bd2fff7 libcopyfile.dylib (146.250.1) <24905E41-9E2F-3DD1-A255-5A17F9FCDAD7> /usr/lib/system/libcopyfile.dylib 0x7fff7bd30000 - 0x7fff7bdb4fc7 libcorecrypto.dylib (602.250.23) <3A6CBD41-AFFE-3E06-B1EC-3E95BC79BAC5> /usr/lib/system/libcorecrypto.dylib 0x7fff7be3b000 - 0x7fff7be74ff7 libdispatch.dylib (1008.250.7) <50235FCE-B399-3319-90DC-88F530D4FC5C> /usr/lib/system/libdispatch.dylib 0x7fff7be75000 - 0x7fff7bea1ff7 libdyld.dylib (655.1.1) <54C6B494-4A3D-3EEC-B083-636A76AAD649> /usr/lib/system/libdyld.dylib 0x7fff7bea2000 - 0x7fff7bea2ffb libkeymgr.dylib (30) <BEA04E04-FCF1-3A70-810F-08D0FF54CA36> /usr/lib/system/libkeymgr.dylib 0x7fff7beb0000 - 0x7fff7beb0ff7 liblaunch.dylib (1336.251.2) <30E6424E-4640-3DBA-9B64-D5F725263C6E> /usr/lib/system/liblaunch.dylib 0x7fff7beb1000 - 0x7fff7beb6fff libmacho.dylib (927.0.2) <D8515A20-ED7B-3B13-9ADA-4BD7E19E38C4> /usr/lib/system/libmacho.dylib 0x7fff7beb7000 - 0x7fff7beb9ffb libquarantine.dylib (86.220.1) <8A9BF971-DB7D-311A-B131-6C5025E82F8F> /usr/lib/system/libquarantine.dylib 0x7fff7beba000 - 0x7fff7bebbff7 libremovefile.dylib (45.200.2) <950036B7-B91E-3B5D-853C-8C551E5B6A32> /usr/lib/system/libremovefile.dylib 0x7fff7bebc000 - 0x7fff7bed3ff3 libsystem_asl.dylib (356.200.4) <16F632AD-FADA-3DE9-85E8-EBC7D619A1DA> /usr/lib/system/libsystem_asl.dylib 0x7fff7bed4000 - 0x7fff7bed4ff7 libsystem_blocks.dylib (73) <0CD6861B-EC5F-3345-9C24-B21EEB85E44F> /usr/lib/system/libsystem_blocks.dylib 0x7fff7bed5000 - 0x7fff7bf5cfff libsystem_c.dylib (1272.250.1) <F3AA9047-EEDD-3D80-8CC1-023FB312EC8B> /usr/lib/system/libsystem_c.dylib 0x7fff7bf5d000 - 0x7fff7bf60ffb libsystem_configuration.dylib (963.250.1) <02C7A973-014A-31D7-B7D2-247D384CB0D2> /usr/lib/system/libsystem_configuration.dylib 0x7fff7bf61000 - 0x7fff7bf64ff7 libsystem_coreservices.dylib (66) <4CF1C89B-FA6C-3DF3-B1F8-79F549849534> /usr/lib/system/libsystem_coreservices.dylib 0x7fff7bf65000 - 0x7fff7bf6bfff libsystem_darwin.dylib (1272.250.1) <6983A268-20F4-3F98-A3F5-D63848933B02> /usr/lib/system/libsystem_darwin.dylib 0x7fff7bf6c000 - 0x7fff7bf72ff7 libsystem_dnssd.dylib (878.250.4) <9FC5724C-DD03-3E14-A6E1-2DD009D79E0A> /usr/lib/system/libsystem_dnssd.dylib 0x7fff7bf73000 - 0x7fff7bfbeffb libsystem_info.dylib (517.200.9) <F617D3CF-5A4A-36D0-8CBB-4A7C7CDB67AF> /usr/lib/system/libsystem_info.dylib 0x7fff7bfbf000 - 0x7fff7bfe7ff7 libsystem_kernel.dylib (4903.251.3) <84EF0290-6CB5-36E5-A273-692A7E437B36> /usr/lib/system/libsystem_kernel.dylib 0x7fff7bfe8000 - 0x7fff7c033ff7 libsystem_m.dylib (3158.200.7) <33105665-CCC3-36D5-82C9-9B21730CB3DF> /usr/lib/system/libsystem_m.dylib 0x7fff7c034000 - 0x7fff7c058fff libsystem_malloc.dylib (166.251.2) <90DA09E3-1276-3FCF-8F5F-C9AA61AB9B6D> /usr/lib/system/libsystem_malloc.dylib 0x7fff7c059000 - 0x7fff7c063ff7 libsystem_networkextension.dylib (767.250.2) <4575D797-B793-3D18-9E93-8696CF0B133B> /usr/lib/system/libsystem_networkextension.dylib 0x7fff7c064000 - 0x7fff7c06bfff libsystem_notify.dylib (172.200.21) <679E9132-1A46-326E-9A11-D3FF9C86041C> /usr/lib/system/libsystem_notify.dylib 0x7fff7c06c000 - 0x7fff7c075fef libsystem_platform.dylib (177.250.1) <3CC59141-5365-3848-94C3-D65E6FCA1E74> /usr/lib/system/libsystem_platform.dylib 0x7fff7c076000 - 0x7fff7c080ff7 libsystem_pthread.dylib (330.250.2) <4344198A-A1A3-3C52-97B4-F168D56E9789> /usr/lib/system/libsystem_pthread.dylib 0x7fff7c081000 - 0x7fff7c084ff7 libsystem_sandbox.dylib (851.250.12) <66E91015-F62A-3365-BB81-AA88707E8F12> /usr/lib/system/libsystem_sandbox.dylib 0x7fff7c085000 - 0x7fff7c087ff3 libsystem_secinit.dylib (30.220.1) <F054DCB0-68CE-35E7-8B8C-D648C42124EC> /usr/lib/system/libsystem_secinit.dylib 0x7fff7c088000 - 0x7fff7c08fff3 libsystem_symptoms.dylib (820.257.1) <C8517F35-E9DA-3649-B07D-2B38349C6730> /usr/lib/system/libsystem_symptoms.dylib 0x7fff7c090000 - 0x7fff7c0a5fff libsystem_trace.dylib (906.250.5) <AE77ACC7-488F-3AE1-BB0C-1ACFC7E1CE77> /usr/lib/system/libsystem_trace.dylib 0x7fff7c0a7000 - 0x7fff7c0acffb libunwind.dylib (35.4) <8F0BC197-B97C-3DDC-92B0-6A7D3CB72FD8> /usr/lib/system/libunwind.dylib 0x7fff7c0ad000 - 0x7fff7c0dcff7 libxpc.dylib (1336.251.2) <49138829-09C8-355C-B558-97E070B84EC5> /usr/lib/system/libxpc.dylib
External Modification Summary: Calls made by other processes targeting this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by all processes on this machine: task_for_pid: 457922 thread_create: 0 thread_set_state: 576
VM Region Summary:ReadOnly portion of Libraries: Total=318.0M resident=0K(0%) swapped_out_or_unallocated=318.0M(100%)Writable regions: Total=113.6M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=113.6M(100%) VIRTUAL REGION REGION TYPE SIZE COUNT (non-coalesced) =========== ======= ======= Kernel Alloc Once 8K 1 MALLOC 105.1M 35 MALLOC guard page 16K 4 STACK GUARD 56.0M 1 Stack 8192K 1 _DATA 5604K 43 LINKEDIT 230.1M 3 _TEXT 87.9M 42 shared memory 8K 2 =========== ======= ======= TOTAL 492.6M 132
Model: MacBook9,1, BootROM 179.0.0.0.0, 2 processors, Intel Core m7, 1,3 GHz, 8 GB, SMC 2.35f105Graphics: kHW_IntelHD515Item, Intel HD Graphics 515, spdisplays_builtinMemory Module: BANK 0/DIMM0, 4 GB, LPDDR3, 1867 MHz, 0x80CE, 0x4B33514634463430424D2D41474346202020Memory Module: BANK 1/DIMM0, 4 GB, LPDDR3, 1867 MHz, 0x80CE, 0x4B33514634463430424D2D41474346202020AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x158), Broadcom BCM43xx 1.0 (7.77.61.2 AirPortDriverBrcmNIC-1305.8)Bluetooth: Version 6.0.11f4, 3 services, 27 devices, 1 incoming serial portsNetwork Service: Wi-Fi, AirPort, en0USB Device: USB 3.0 BusThunderbolt Bus:

@tkrajacic
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Even in Swift 5 this crashes spectacularly

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@tkrajacic
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This still crashes in the latest Swift 5.6 (Xcode Version 13.3.1 (13E500a))

CompileSwift normal x86_64 /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/Property.swift (in target 'CodableCrasher' from project 'CodableCrasher')
    cd /Users/tkrajacic/Downloads/SR-9376/CodableCrasher
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/Property.swift /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/Property+Codable.swift /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/AppDelegate.swift -emit-dependencies-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.d -emit-reference-dependencies-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.swiftdeps -serialize-diagnostics-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.dia -target x86_64-apple-macos10.14 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -I /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Products/Debug -F /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Products/Debug -enable-testing -g -module-cache-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity\=checked -Onone -D DEBUG -new-driver-path /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-driver -serialize-debugging-options -Xcc -working-directory -Xcc /Users/tkrajacic/Downloads/SR-9376/CodableCrasher -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-generated-files.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-own-target-headers.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-all-target-headers.hmap -Xcc -iquote -Xcc /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-project-headers.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Products/Debug/include -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources-normal/x86_64 -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources/x86_64 -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources -Xcc -DDEBUG\=1 -module-name CodableCrasher -target-sdk-version 12.3 -o /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.o -index-unit-output-path /CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.o -index-store-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Index/DataStore -index-system-modules

Global is external, but doesn't have external or weak linkage!
%swift.type_descriptor* @"$s14CodableCrasher8PropertyV10CodingKeys33_1AC7B054C26C4327D88753EB7D2E403CLLOMn"
Global is external, but doesn't have external or weak linkage!
%swift.type* @"$s14CodableCrasher8PropertyV10CodingKeys33_1AC7B054C26C4327D88753EB7D2E403CLLON"
Global is external, but doesn't have external or weak linkage!
%swift.protocol_conformance_descriptor* @"$s14CodableCrasher8PropertyV10CodingKeys33_1AC7B054C26C4327D88753EB7D2E403CLLOs0D3KeyAAMc"
<unknown>:0: error: fatal error encountered during compilation; please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the project
<unknown>:0: note: Broken module found, compilation aborted!
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the project and the crash backtrace.
Stack dump:
0.	Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/Property.swift /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/Property+Codable.swift /Users/tkrajacic/Downloads/SR-9376/CodableCrasher/CodableCrasher/AppDelegate.swift -emit-dependencies-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.d -emit-reference-dependencies-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.swiftdeps -serialize-diagnostics-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.dia -target x86_64-apple-macos10.14 -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.3.sdk -I /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Products/Debug -F /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Products/Debug -enable-testing -g -module-cache-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity=checked -Onone -D DEBUG -new-driver-path /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift-driver -serialize-debugging-options -Xcc -working-directory -Xcc /Users/tkrajacic/Downloads/SR-9376/CodableCrasher -resource-dir /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift -enable-anonymous-context-mangled-names -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-generated-files.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-own-target-headers.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-all-target-headers.hmap -Xcc -iquote -Xcc /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/CodableCrasher-project-headers.hmap -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Products/Debug/include -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources-normal/x86_64 -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources/x86_64 -Xcc -I/Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/DerivedSources -Xcc -DDEBUG=1 -module-name CodableCrasher -target-sdk-version 12.3 -o /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Build/Intermediates.noindex/CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.o -index-unit-output-path /CodableCrasher.build/Debug/CodableCrasher.build/Objects-normal/x86_64/Property.o -index-store-path /Users/tkrajacic/Library/Developer/Xcode/DerivedData/CodableCrasher-empparzmujrdgqbucuiwecbjwntb/Index/DataStore -index-system-modules
1.	Apple Swift version 5.6 (swiftlang-5.6.0.323.62 clang-1316.0.20.8)
2.	Compiling with the current language version
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-frontend           0x000000010e550de7 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 39
1  swift-frontend           0x000000010e54fe38 llvm::sys::RunSignalHandlers() + 248
2  swift-frontend           0x000000010e551440 SignalHandler(int) + 288
3  libsystem_platform.dylib 0x00007ff8128e7dfd _sigtramp + 29
4  libsystem_malloc.dylib   0x00007ff8126ee1b3 free_tiny + 446
5  libsystem_c.dylib        0x00007ff81281dd24 abort + 123
6  swift-frontend           0x000000010927c962 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*)::$_2::__invoke(void*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) + 994
7  swift-frontend           0x000000010e49db97 llvm::report_fatal_error(llvm::Twine const&, bool) + 295
8  swift-frontend           0x000000010e49da69 llvm::report_fatal_error(char const*, bool) + 41
9  swift-frontend           0x000000010e30301f (anonymous namespace)::VerifierLegacyPass::doFinalization(llvm::Module&) + 191
10 swift-frontend           0x000000010e29d142 llvm::FPPassManager::doFinalization(llvm::Module&) + 66
11 swift-frontend           0x000000010e295920 llvm::legacy::FunctionPassManagerImpl::doFinalization(llvm::Module&) + 80
12 swift-frontend           0x00000001097b4119 swift::performLLVMOptimizations(swift::IRGenOptions const&, llvm::Module*, llvm::TargetMachine*) + 2313
13 swift-frontend           0x00000001097b58cc swift::performLLVM(swift::IRGenOptions const&, swift::DiagnosticEngine&, llvm::sys::SmartMutex<false>*, llvm::GlobalVariable*, llvm::Module*, llvm::TargetMachine*, llvm::StringRef, swift::UnifiedStatsReporter*) + 2812
14 swift-frontend           0x000000010928766b performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule> >, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 3195
15 swift-frontend           0x0000000109279261 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 15233
16 swift-frontend           0x00000001092385d4 swift::mainEntry(int, char const**) + 1108
17 dyld                     0x000000012066a51e start + 462
error: Abort trap: 6 (in target 'CodableCrasher' from project 'CodableCrasher')

@AnthonyLatsis AnthonyLatsis added the crash Bug: A crash, i.e., an abnormal termination of software label Dec 12, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. Codable Area → standard library: `Codable` and co. compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software
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@belkadan @tkrajacic @AnthonyLatsis