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[SR-13004] Assertion failed: (params.empty() || ((Key.Depth == params.back()->getDepth() && Key.Index == params.back()->getIndex() + 1) || (Key.Depth > params.back()->getDepth() && Key.Index == 0))), function addGenericParameter #55449

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nathawes opened this issue Jun 13, 2020 · 2 comments
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[SR-13004] Assertion failed: (params.empty() || ((Key.Depth == params.back()->getDepth() && Key.Index == params.back()->getIndex() + 1) || (Key.Depth > params.back()->getDepth() && Key.Index == 0))), function addGenericParameter #55449

nathawes opened this issue Jun 13, 2020 · 2 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself found by stress tester Flag: An issue found by the SourceKit stress tester

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@nathawes
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Previous ID SR-13004
Radar rdar://problem/64321230
Original Reporter @nathawes
Type Bug
Status Resolved
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, FoundByStressTester
Assignee None
Priority Medium

md5: 214ccf4d689cfdbc548eda21f3494cc9

Issue Description:

Compile the below to reproduce:

func verifyDecoder<Decoder>() {

extension ByteToMessageDecoderVerifier {

class RecordingChannel {
  func readInbound<T>(foo bar: Int) {}

Trace:

Assertion failed: (params.empty() || ((Key.Depth == params.back()->getDepth() && Key.Index == params.back()->getIndex() + 1) || (Key.Depth > params.back()->getDepth() && Key.Index == 0))), function addGenericParameter, file /Users/buildnode/jenkins/workspace/oss-swift-package-osx/swift/lib/AST/GenericSignatureBuilder.cpp, line 3800.
 

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib          0x00007fff6b42d33a __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff6b4e9e60 pthread_kill + 430
2   libsystem_c.dylib               0x00007fff6b3b48a2 __abort + 139
3   libsystem_c.dylib               0x00007fff6b3b4817 abort + 135
4   libsystem_c.dylib               0x00007fff6b3b3ac6 __assert_rtn + 314
5   swift                           0x000000010e010883 swift::GenericSignatureBuilder::addGenericParameter(swift::GenericTypeParamType*) (.cold.4) + 35
6   swift                           0x000000010a9f77dd swift::GenericSignatureBuilder::addGenericParameter(swift::GenericTypeParamType*) + 477
7   swift                           0x000000010aa0a2ed swift::InferredGenericSignatureRequest::evaluate(swift::Evaluator&, swift::ModuleDecl*, swift::GenericSignatureImpl const*, llvm::PointerUnion<swift::GenericContext*, swift::GenericParamList*>, llvm::SmallVector<swift::Requirement, 2u>, llvm::SmallVector<swift::TypeLoc, 2u>, bool) const + 685
8   swift                           0x000000010a6bbafb swift::GenericSignature swift::SimpleRequest<swift::InferredGenericSignatureRequest, swift::GenericSignature (swift::ModuleDecl*, swift::GenericSignatureImpl const*, llvm::PointerUnion<swift::GenericContext*, swift::GenericParamList*>, llvm::SmallVector<swift::Requirement, 2u>, llvm::SmallVector<swift::TypeLoc, 2u>, bool), (swift::RequestFlags)2>::callDerived<0ul, 1ul, 2ul, 3ul, 4ul, 5ul>(swift::Evaluator&, std::__1::integer_sequence<unsigned long, 0ul, 1ul, 2ul, 3ul, 4ul, 5ul>) const + 155
9   swift                           0x000000010a66f4e9 llvm::Expected<swift::InferredGenericSignatureRequest::OutputType> swift::Evaluator::getResultUncached<swift::InferredGenericSignatureRequest>(swift::InferredGenericSignatureRequest const&) + 329
10  swift                           0x000000010a66f127 llvm::Expected<swift::InferredGenericSignatureRequest::OutputType> swift::Evaluator::getResultCached<swift::InferredGenericSignatureRequest, (void*)0>(swift::InferredGenericSignatureRequest const&) + 199
11  swift                           0x000000010a66c1e1 swift::InferredGenericSignatureRequest::OutputType swift::evaluateOrDefault<swift::InferredGenericSignatureRequest>(swift::Evaluator&, swift::InferredGenericSignatureRequest, swift::InferredGenericSignatureRequest::OutputType) + 49
12  swift                           0x000000010a66bb27 swift::TypeChecker::checkGenericSignature(llvm::PointerUnion<swift::GenericContext*, swift::GenericParamList*>, swift::DeclContext*, swift::GenericSignature, bool, llvm::SmallVector<swift::Requirement, 2u>, llvm::SmallVector<swift::TypeLoc, 2u>) + 327
13  swift                           0x000000010a66c4e4 swift::GenericSignatureRequest::evaluate(swift::Evaluator&, swift::GenericContext*) const + 516
14  swift                           0x000000010a953840 llvm::Expected<swift::GenericSignatureRequest::OutputType> swift::Evaluator::getResultUncached<swift::GenericSignatureRequest>(swift::GenericSignatureRequest const&) + 432
15  swift                           0x000000010a953553 llvm::Expected<swift::GenericSignatureRequest::OutputType> swift::Evaluator::getResultCached<swift::GenericSignatureRequest, (void*)0>(swift::GenericSignatureRequest const&) + 51
16  swift                           0x000000010a932255 swift::GenericSignatureRequest::OutputType swift::evaluateOrDefault<swift::GenericSignatureRequest>(swift::Evaluator&, swift::GenericSignatureRequest, swift::GenericSignatureRequest::OutputType) + 37
17  swift                           0x000000010a6e000b swift::TypeResolution::forInterface(swift::DeclContext*, swift::TypeResolutionOptions) + 27
18  swift                           0x000000010a636c9c swift::InterfaceTypeRequest::evaluate(swift::Evaluator&, swift::ValueDecl*) const + 1996
19  swift                           0x000000010a96a794 llvm::Expected<swift::InterfaceTypeRequest::OutputType> swift::Evaluator::getResultUncached<swift::InterfaceTypeRequest>(swift::InterfaceTypeRequest const&) + 436
20  swift                           0x000000010a96a4a3 llvm::Expected<swift::InterfaceTypeRequest::OutputType> swift::Evaluator::getResultCached<swift::InterfaceTypeRequest, (void*)0>(swift::InterfaceTypeRequest const&) + 51
21  swift                           0x000000010a939ef5 swift::InterfaceTypeRequest::OutputType swift::evaluateOrDefault<swift::InterfaceTypeRequest>(swift::Evaluator&, swift::InterfaceTypeRequest, swift::InterfaceTypeRequest::OutputType) + 37
22  swift                           0x000000010a92ecc0 swift::ValueDecl::getInterfaceType() const + 64
23  swift                           0x000000010aabc216 swift::USRGenerationRequest::evaluate(swift::Evaluator&, swift::ValueDecl const*) const + 694
24  swift                           0x000000010a6bb791 swift::SimpleRequest<swift::USRGenerationRequest, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > (swift::ValueDecl const*), (swift::RequestFlags)2>::evaluateRequest(swift::USRGenerationRequest const&, swift::Evaluator&) + 17
25  swift                           0x000000010aabdbd5 llvm::Expected<swift::USRGenerationRequest::OutputType> swift::Evaluator::getResultUncached<swift::USRGenerationRequest>(swift::USRGenerationRequest const&) + 581
26  swift                           0x000000010aabd6fd llvm::Expected<swift::USRGenerationRequest::OutputType> swift::Evaluator::getResultCached<swift::USRGenerationRequest, (void*)0>(swift::USRGenerationRequest const&) + 349
27  swift                           0x000000010aabcb44 swift::USRGenerationRequest::OutputType swift::evaluateOrDefault<swift::USRGenerationRequest>(swift::Evaluator&, swift::USRGenerationRequest, swift::USRGenerationRequest::OutputType) + 36
28  swift                           0x000000010aabcab0 swift::ide::printValueDeclUSR(swift::ValueDecl const*, llvm::raw_ostream&) + 96
29  swift                           0x0000000109ab428b (anonymous namespace)::IndexSwiftASTWalker::getNameAndUSR(swift::ValueDecl*, swift::ExtensionDecl*, llvm::StringRef&, llvm::StringRef&) + 299
30  swift                           0x0000000109ab390e (anonymous namespace)::IndexSwiftASTWalker::initIndexSymbol(swift::ValueDecl*, swift::SourceLoc, bool, swift::index::IndexSymbol&) + 286
31  swift                           0x0000000109ab1f8e (anonymous namespace)::IndexSwiftASTWalker::walkToDeclPre(swift::Decl*, swift::CharSourceRange) + 1390
32  swift                           0x0000000109aaaec6 (anonymous namespace)::SemaAnnotator::walkToDeclPre(swift::Decl*) + 1638
33  swift                           0x000000010a8fdb2a (anonymous namespace)::Traversal::doIt(swift::Decl*) + 170
34  swift                           0x000000010a902f8c (anonymous namespace)::Traversal::visitAbstractFunctionDecl(swift::AbstractFunctionDecl*) + 284
35  swift                           0x000000010a8fdb57 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 215
36  swift                           0x000000010a902879 (anonymous namespace)::Traversal::visitNominalTypeDecl(swift::NominalTypeDecl*) + 329
37  swift                           0x000000010a8fdb57 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 215
38  swift                           0x000000010a90217e swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Decl*) + 1630
39  swift                           0x000000010a8fdb57 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 215
40  swift                           0x000000010a90006c swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) + 460
41  swift                           0x000000010a9030b8 (anonymous namespace)::Traversal::visitAbstractFunctionDecl(swift::AbstractFunctionDecl*) + 584
42  swift                           0x000000010a8fdb57 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 215
43  swift                           0x000000010a8fda6b swift::Decl::walk(swift::ASTWalker&) + 27
44  swift                           0x000000010aa37268 swift::SourceFile::walk(swift::ASTWalker&) + 216
45  swift                           0x0000000109aa8e6f swift::SourceEntityWalker::walk(swift::SourceFile&) + 255
46  swift                           0x0000000109ab1766 (anonymous namespace)::IndexSwiftASTWalker::visitModule(swift::ModuleDecl&) + 230
47  swift                           0x0000000109ab164c swift::index::indexSourceFile(swift::SourceFile*, swift::index::IndexDataConsumer&) + 428
48  swift                           0x0000000109ab78f1 recordSourceFileUnit(swift::SourceFile*, llvm::StringRef, llvm::StringRef, bool, bool, bool, llvm::StringRef, llvm::ArrayRef<clang::FileEntry const*>, clang::CompilerInstance const&, swift::DiagnosticEngine&) + 1617
49  swift                           0x0000000109ab7236 swift::index::indexAndRecord(swift::SourceFile*, llvm::StringRef, llvm::StringRef, bool, bool, bool, llvm::StringRef, swift::DependencyTracker const&) + 230
50  swift                           0x0000000109993c4c emitIndexDataForSourceFile(swift::SourceFile*, swift::CompilerInstance const&) + 332
51  swift                           0x0000000109993abc performEndOfPipelineActions(swift::CompilerInstance&) + 524
52  swift                           0x0000000109986351 performCompile(swift::CompilerInstance&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*) + 7761
53  swift                           0x0000000109983519 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3529
54  swift                           0x000000010991fccd main + 861
55  libdyld.dylib                   0x00007fff6b2e5cc9 start + 1
@nathawes
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@swift-ci create

@slavapestov
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This was fixed a while ago.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself found by stress tester Flag: An issue found by the SourceKit stress tester
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@slavapestov @nathawes