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Add test case for crash triggered in `swift::ArchetypeType::resolveNestedType`. Current number of unresolved compiler crashers: 58 (5619 resolved) /cc @DougGregor - just wanted to let you know that this crasher caused an assertion failure for the assertion `!nested.second || nested.second->isEqual(result) || (nested.second->hasError() && result->hasError())` added on 2016-11-29 by you in commit95f1aaf4:-) Assertion failure in [`lib/AST/GenericSignatureBuilder.cpp (line 2748)`](066762a77f/lib/AST/GenericSignatureBuilder.cpp (L2748)): ``` Assertion `!nested.second || nested.second->isEqual(result) || (nested.second->hasError() && result->hasError())' failed. When executing: void swift::ArchetypeType::resolveNestedType(std::pair<Identifier, Type> &) const ``` Assertion context: ```c++ memberInterfaceType, ArchetypeResolutionKind::CompleteWellFormed); auto result = equivClass->getTypeInContext(builder, genericEnv); assert(!nested.second || nested.second->isEqual(result) || (nested.second->hasError() && result->hasError())); nested.second = result; } Type GenericSignatureBuilder::PotentialArchetype::getDependentType( ArrayRef<GenericTypeParamType *> genericParams) const { ``` Stack trace: ``` 0 0x0000000003f3bfe4 PrintStackTraceSignalHandler(void*) (/path/to/swift/bin/swift+0x3f3bfe4) 1 0x0000000003f3c326 SignalHandler(int) (/path/to/swift/bin/swift+0x3f3c326) 2 0x00007fc48086d390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390) 3 0x00007fc47ed92428 gsignal /build/glibc-bfm8X4/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0 4 0x00007fc47ed9402a abort /build/glibc-bfm8X4/glibc-2.23/stdlib/abort.c:91:0 5 0x00007fc47ed8abd7 __assert_fail_base /build/glibc-bfm8X4/glibc-2.23/assert/assert.c:92:0 6 0x00007fc47ed8ac82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) 7 0x00000000016eaaa0 swift::ArchetypeType::resolveNestedType(std::pair<swift::Identifier, swift::Type>&) const (/path/to/swift/bin/swift+0x16eaaa0) 8 0x000000000174cce4 swift::ArchetypeType::getNestedType(swift::Identifier) const (/path/to/swift/bin/swift+0x174cce4) 9 0x000000000174e2e9 getMemberForBaseType(llvm::function_ref<llvm::Optional<swift::ProtocolConformanceRef> (swift::CanType, swift::Type, swift::ProtocolType*)>, swift::Type, swift::Type, swift::AssociatedTypeDecl*, swift::Identifier, swift::SubstOptions) (/path/to/swift/bin/swift+0x174e2e9) 10 0x0000000001753f3f llvm::Optional<swift::Type> llvm::function_ref<llvm::Optional<swift::Type> (swift::TypeBase*)>::callback_fn<substType(swift::Type, llvm::function_ref<swift::Type (swift::SubstitutableType*)>, llvm::function_ref<llvm::Optional<swift::ProtocolConformanceRef> (swift::CanType, swift::Type, swift::ProtocolType*)>, swift::SubstOptions)::$_18>(long, swift::TypeBase*) (/path/to/swift/bin/swift+0x1753f3f) 11 0x0000000001750432 swift::Type::transformRec(llvm::function_ref<llvm::Optional<swift::Type> (swift::TypeBase*)>) const (/path/to/swift/bin/swift+0x1750432) 12 0x000000000174ed69 substType(swift::Type, llvm::function_ref<swift::Type (swift::SubstitutableType*)>, llvm::function_ref<llvm::Optional<swift::ProtocolConformanceRef> (swift::CanType, swift::Type, swift::ProtocolType*)>, swift::SubstOptions) (/path/to/swift/bin/swift+0x174ed69) 13 0x0000000001749bfb swift::Type::subst(swift::SubstitutionMap const&, swift::SubstOptions) const (/path/to/swift/bin/swift+0x1749bfb) 14 0x00000000013751b2 swift::TypeChecker::substMemberTypeWithBase(swift::ModuleDecl*, swift::TypeDecl*, swift::Type) (/path/to/swift/bin/swift+0x13751b2) 15 0x0000000001374f03 swift::TypeChecker::resolveTypeInContext(swift::TypeDecl*, swift::DeclContext*, swift::DeclContext*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, bool, swift::GenericTypeResolver*) (/path/to/swift/bin/swift+0x1374f03) 16 0x000000000137dff7 resolveTypeDecl(swift::TypeChecker&, swift::TypeDecl*, swift::SourceLoc, swift::DeclContext*, swift::DeclContext*, swift::GenericIdentTypeRepr*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) (/path/to/swift/bin/swift+0x137dff7) 17 0x000000000137cd5f resolveTopLevelIdentTypeComponent(swift::TypeChecker&, swift::DeclContext*, swift::ComponentIdentTypeRepr*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, bool, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) (/path/to/swift/bin/swift+0x137cd5f) 18 0x0000000001376d7c resolveIdentTypeComponent(swift::TypeChecker&, swift::DeclContext*, llvm::ArrayRef<swift::ComponentIdentTypeRepr*>, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, bool, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) (/path/to/swift/bin/swift+0x1376d7c) 19 0x0000000001376754 swift::TypeChecker::resolveIdentifierType(swift::DeclContext*, swift::IdentTypeRepr*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, bool, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) (/path/to/swift/bin/swift+0x1376754) 20 0x00000000013774d1 (anonymous namespace)::TypeResolver::resolveType(swift::TypeRepr*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>) (/path/to/swift/bin/swift+0x13774d1) 21 0x00000000013773dc swift::TypeChecker::resolveType(swift::TypeRepr*, swift::DeclContext*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) (/path/to/swift/bin/swift+0x13773dc) 22 0x0000000001375c99 swift::TypeChecker::validateType(swift::TypeLoc&, swift::DeclContext*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) (/path/to/swift/bin/swift+0x1375c99) 23 0x00000000012f19cb swift::TypeChecker::validateDecl(swift::ValueDecl*) (/path/to/swift/bin/swift+0x12f19cb) 24 0x000000000130165e (anonymous namespace)::DeclChecker::visitAssociatedTypeDecl(swift::AssociatedTypeDecl*) (/path/to/swift/bin/swift+0x130165e) 25 0x00000000012efb2a (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x12efb2a) 26 0x00000000013032db (anonymous namespace)::DeclChecker::visitProtocolDecl(swift::ProtocolDecl*) (/path/to/swift/bin/swift+0x13032db) 27 0x00000000012efb5a (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x12efb5a) 28 0x00000000012efa03 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) (/path/to/swift/bin/swift+0x12efa03) 29 0x0000000001386bd2 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int, unsigned int, unsigned int) (/path/to/swift/bin/swift+0x1386bd2) 30 0x0000000001092284 swift::CompilerInstance::parseAndTypeCheckMainFile(swift::PersistentParserState&, swift::DelayedParsingCallbacks*, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>) (/path/to/swift/bin/swift+0x1092284) 31 0x000000000109122e swift::CompilerInstance::parseAndCheckTypes(swift::CompilerInstance::ImplicitImports const&) (/path/to/swift/bin/swift+0x109122e) 32 0x0000000001090bda swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0x1090bda) 33 0x00000000004c88de performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) (/path/to/swift/bin/swift+0x4c88de) 34 0x00000000004c762a swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x4c762a) 35 0x000000000047ff84 main (/path/to/swift/bin/swift+0x47ff84) 36 0x00007fc47ed7d830 __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:325:0 37 0x000000000047d839 _start (/path/to/swift/bin/swift+0x47d839) ```
12 lines
463 B
Swift
12 lines
463 B
Swift
// This source file is part of the Swift.org open source project
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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// REQUIRES: asserts
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// RUN: not --crash %target-swift-frontend %s -emit-ir
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class a:A
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protocol A:a{typealias a:=a
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