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[SR-9003] Code completion assertion failure: (is<T>() && "Invalid accessor called"), function get, file llvm/include/llvm/ADT/PointerUnion.h #51506

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nathawes opened this issue Oct 15, 2018 · 2 comments
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[SR-9003] Code completion assertion failure: (is<T>() && "Invalid accessor called"), function get, file llvm/include/llvm/ADT/PointerUnion.h #51506

nathawes opened this issue Oct 15, 2018 · 2 comments
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@ahoppen
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. code completion Area → source tooling: code completion compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software source tooling Area: IDE support, SourceKit, and other source tooling

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@nathawes
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Previous ID SR-9003
Radar rdar://problem/45279106
Original Reporter @nathawes
Type Bug
Status Resolved
Resolution Cannot Reproduce
Additional Detail from JIRA
Votes 0
Component/s CodeCompletion
Labels Bug, CompilerCrash
Assignee @ahoppen
Priority Medium

md5: d94363e484b154a2ef3bb9984469b63b

Issue Description:

To reproduce:

$ git clone https://github.com/vapor/fluent
$ cd fluent
$ git checkout -f 270b6fa372f03809b9795e8f8b9d1c31267a0ff3
$ swift package generate-xcodeproj
$ open Fluent.xcodeproj

Then in Xcode:

  1. Select the "Fluent-Package > Generic iOS Device" for scheme + destination and build

  2. Navigate to CacheEntry.swift

  3. On line 27, invoke code completion after "self." in "self.key = key" to get the trace below

Application Specific Information:
dyld2 mode
Stack dump:
0.  While walking into decl 'CacheEntry' at /Users/nathanhawes/workspace/open-swift-source-compat-suite-master/project_cache/fluent/Sources/Fluent/Cache/CacheEntry.swift:5:14
 
Assertion failed: (is<T>() && "Invalid accessor called"), function get, file /Users/buildnode/jenkins/workspace/oss-swift-package-osx/llvm/include/llvm/ADT/PointerUnion.h, line 136.
 
Thread 4 Crashed:
0   libsystem_kernel.dylib          0x00007fff7443bb86 __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff744f1c50 pthread_kill + 285
2   libsystem_c.dylib               0x00007fff743a5268 __abort + 144
3   libsystem_c.dylib               0x00007fff743a51d8 abort + 142
4   libsystem_c.dylib               0x00007fff7436d868 __assert_rtn + 320
5   com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089e0284 swift::GenericSignatureBuilder::maybeResolveEquivalenceClass(swift::Type, swift::ArchetypeResolutionKind, bool) + 2404
6   com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089e036a swift::GenericSignatureBuilder::resolve(llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::FloatingRequirementSource) + 218
7   com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089e6f23 swift::GenericSignatureBuilder::addSameTypeRequirement(llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::FloatingRequirementSource, swift::GenericSignatureBuilder::UnresolvedHandlingKind, llvm::function_ref<void (swift::Type, swift::Type)>) + 147
8   com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089dc530 concretizeNestedTypeFromConcreteParent(swift::GenericSignatureBuilder::PotentialArchetype*, swift::GenericSignatureBuilder::PotentialArchetype*, swift::GenericSignatureBuilder&) + 1280
9   com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089e7dab swift::GenericSignatureBuilder::addSameTypeRequirementToConcrete(swift::GenericSignatureBuilder::ResolvedType, swift::Type, swift::GenericSignatureBuilder::RequirementSource const*) + 2203
10  com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089e6f88 swift::GenericSignatureBuilder::addSameTypeRequirement(llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, llvm::PointerUnion<swift::GenericSignatureBuilder::PotentialArchetype*, swift::Type>, swift::GenericSignatureBuilder::FloatingRequirementSource, swift::GenericSignatureBuilder::UnresolvedHandlingKind, llvm::function_ref<void (swift::Type, swift::Type)>) + 248
11  com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089d7cde swift::GenericSignatureBuilder::addRequirement(swift::Requirement const&, swift::RequirementRepr const*, swift::GenericSignatureBuilder::FloatingRequirementSource, swift::SubstitutionMap const*, swift::ModuleDecl*) + 1950
12  com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089da672 swift::GenericSignatureBuilder::addRequirement(swift::Requirement const&, swift::GenericSignatureBuilder::FloatingRequirementSource, swift::ModuleDecl*) + 50
13  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108a58cb2 substType(swift::Type, llvm::function_ref<swift::Type (swift::SubstitutableType*)>, llvm::function_ref<llvm::Optional<swift::ProtocolConformanceRef> (swift::CanType, swift::Type, swift::ProtocolDecl*)>, swift::SubstOptions) + 2482
14  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108a52526 swift::Type::subst(swift::SubstitutionMap, swift::SubstOptions) const + 118
15  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107f538c3 (anonymous namespace)::CompletionLookup::getTypeOfMember(swift::ValueDecl const*, llvm::Optional<swift::Type>) + 451
16  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107f5086f (anonymous namespace)::CompletionLookup::foundDecl(swift::ValueDecl*, swift::DeclVisibilityKind) + 3967
17  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108a09760 lookupVisibleMemberDecls(swift::Type, swift::VisibleDeclConsumer&, swift::DeclContext const*, (anonymous namespace)::LookupState, swift::DeclVisibilityKind, swift::LazyResolver*, swift::GenericSignatureBuilder*) + 752
18  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108a098d5 swift::lookupVisibleMemberDecls(swift::VisibleDeclConsumer&, swift::Type, swift::DeclContext const*, swift::LazyResolver*, bool, swift::GenericSignatureBuilder*) + 53
19  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107f45724 (anonymous namespace)::CompletionLookup::getValueExprCompletions(swift::Type, swift::ValueDecl*) + 1204
20  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107f409bb (anonymous namespace)::CodeCompletionCallbacksImpl::doneParsing() + 10651
21  com.apple.SourceKitService.4.2.2018100301_osx   0x00000001088b4420 (anonymous namespace)::ParseDelayedFunctionBodies::walkToDeclPre(swift::Decl*) + 288
22  com.apple.SourceKitService.4.2.2018100301_osx   0x000000010896409b (anonymous namespace)::Traversal::doIt(swift::Decl*) + 171
23  com.apple.SourceKitService.4.2.2018100301_osx   0x000000010896940b (anonymous namespace)::Traversal::visitNominalTypeDecl(swift::NominalTypeDecl*) + 459
24  com.apple.SourceKitService.4.2.2018100301_osx   0x00000001089640c8 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 216
25  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108963fdb swift::Decl::walk(swift::ASTWalker&) + 27
26  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108a1954a swift::SourceFile::walk(swift::ASTWalker&) + 170
27  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000108a1805f swift::ModuleDecl::walk(swift::ASTWalker&) + 95
28  com.apple.SourceKitService.4.2.2018100301_osx   0x00000001088abfe7 swift::performDelayedParsing(swift::DeclContext*, swift::PersistentParserState&, swift::CodeCompletionCallbacksFactory*) + 215
29  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107f2ed09 swift::CompilerInstance::parseAndCheckTypesUpTo(swift::CompilerInstance::ImplicitImports const&, swift::SourceFile::ASTStage_t) + 841
30  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107f2e238 swift::CompilerInstance::performSemaUpTo(swift::SourceFile::ASTStage_t) + 616
31  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107d9c89f swiftCodeCompleteImpl(SourceKit::SwiftLangSupport&, llvm::MemoryBuffer*, unsigned int, (anonymous namespace)::SwiftCodeCompletionConsumer&, llvm::ArrayRef<char const*>, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&) + 2511
32  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107d9be63 SourceKit::SwiftLangSupport::codeComplete(llvm::MemoryBuffer*, unsigned int, SourceKit::CodeCompletionConsumer&, llvm::ArrayRef<char const*>) + 131
33  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107df8c32 handleSemanticRequest(sourcekitd::RequestDict, std::__1::function<void (void*)>, sourcekitd_uid_s*, llvm::Optional<llvm::StringRef>, llvm::Optional<llvm::StringRef>, llvm::ArrayRef<char const*>) + 818
34  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107df887e void SourceKit::WorkQueue::DispatchData::callAndDelete<handleRequestImpl(void*, std::__1::function<void (void*)>)::$_4>(void*) + 142
35  libdispatch.dylib               0x00007fff742aedcb _dispatch_client_callout + 8
36  libdispatch.dylib               0x00007fff742b1b68 _dispatch_block_invoke_direct + 260
37  com.apple.SourceKitService.4.2.2018100301_osx   0x000000010a8a051f executeBlock(void*) + 15
38  com.apple.SourceKitService.4.2.2018100301_osx   0x0000000107ebb5cd ExecuteOnThread_Dispatch(void*) + 13
39  libsystem_pthread.dylib         0x00007fff744ef33d _pthread_body + 126
40  libsystem_pthread.dylib         0x00007fff744f22a7 _pthread_start + 70
41  libsystem_pthread.dylib         0x00007fff744ee425 thread_start + 13
@nathawes
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@ahoppen
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ahoppen commented Apr 26, 2021

I was unable to reproduce this with the swift-DEVELOPMENT-SNAPSHOT-2021-01-27-a toolchain. It appears to have been fixed in the meantime.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added crash Bug: A crash, i.e., an abnormal termination of software compiler The Swift compiler in itself labels Dec 12, 2022
@AnthonyLatsis AnthonyLatsis added the source tooling Area: IDE support, SourceKit, and other source tooling label Feb 6, 2023
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. code completion Area → source tooling: code completion compiler The Swift compiler in itself crash Bug: A crash, i.e., an abnormal termination of software source tooling Area: IDE support, SourceKit, and other source tooling
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