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Add test case for crash triggered in `swift::TypeChecker::checkGenericParamList`. Current number of unresolved compiler crashers: 35 (5512 resolved) /cc @DougGregor - just wanted to let you know that this crasher caused an assertion failure for the assertion `Impl->GenericParams.empty() || ((Key.Depth == Impl->GenericParams.back()->getDepth() && Key.Index == Impl->GenericParams.back()->getIndex() + 1) || (Key.Depth > Impl->GenericParams.back()->getDepth() && Key.Index == 0))` added on 2017-02-07 by you in commit0c76a9d8:-) Assertion failure in [`lib/AST/GenericSignatureBuilder.cpp (line 2127)`](4463bb8287/lib/AST/GenericSignatureBuilder.cpp (L2127)): ``` Assertion `Impl->GenericParams.empty() || ((Key.Depth == Impl->GenericParams.back()->getDepth() && Key.Index == Impl->GenericParams.back()->getIndex() + 1) || (Key.Depth > Impl->GenericParams.back()->getDepth() && Key.Index == 0))' failed. When executing: void swift::GenericSignatureBuilder::addGenericParameter(swift::GenericTypeParamType *) ``` Assertion context: ```c++ return ResolvedType::forPotentialArchetype(pa); } void GenericSignatureBuilder::addGenericParameter(GenericTypeParamDecl *GenericParam) { addGenericParameter( GenericParam->getDeclaredInterfaceType()->castTo<GenericTypeParamType>()); } bool GenericSignatureBuilder::addGenericParameterRequirements( GenericTypeParamDecl *GenericParam) { GenericParamKey Key(GenericParam); ``` Stack trace: ``` 0 0x000000000395fc48 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x395fc48) 1 0x0000000003960386 SignalHandler(int) (/path/to/swift/bin/swift+0x3960386) 2 0x00007f5c3d37d390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390) 3 0x00007f5c3b8a3428 gsignal /build/glibc-9tT8Do/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0 4 0x00007f5c3b8a502a abort /build/glibc-9tT8Do/glibc-2.23/stdlib/abort.c:91:0 5 0x00007f5c3b89bbd7 __assert_fail_base /build/glibc-9tT8Do/glibc-2.23/assert/assert.c:92:0 6 0x00007f5c3b89bc82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) 7 0x00000000014b3f98 (/path/to/swift/bin/swift+0x14b3f98) 8 0x00000000012e575c swift::TypeChecker::checkGenericParamList(swift::GenericSignatureBuilder*, swift::GenericParamList*, swift::GenericSignature*, swift::GenericTypeResolver*) (/path/to/swift/bin/swift+0x12e575c) 9 0x00000000012e8c38 swift::TypeChecker::checkGenericEnvironment(swift::GenericParamList*, swift::DeclContext*, swift::GenericSignature*, bool, llvm::function_ref<void (swift::GenericSignatureBuilder&)>) (/path/to/swift/bin/swift+0x12e8c38) 10 0x00000000012e9089 swift::TypeChecker::validateGenericTypeSignature(swift::GenericTypeDecl*) (/path/to/swift/bin/swift+0x12e9089) 11 0x00000000012b991e swift::TypeChecker::validateDecl(swift::ValueDecl*) (/path/to/swift/bin/swift+0x12b991e) 12 0x00000000012c8943 (anonymous namespace)::DeclChecker::visitProtocolDecl(swift::ProtocolDecl*) (/path/to/swift/bin/swift+0x12c8943) 13 0x00000000012b7b57 (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x12b7b57) 14 0x00000000012c763b (anonymous namespace)::DeclChecker::visitExtensionDecl(swift::ExtensionDecl*) (/path/to/swift/bin/swift+0x12c763b) 15 0x00000000012b7a1b (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x12b7a1b) 16 0x00000000012b7953 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) (/path/to/swift/bin/swift+0x12b7953) 17 0x00000000013360a5 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int, unsigned int) (/path/to/swift/bin/swift+0x13360a5) 18 0x0000000000fa3286 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0xfa3286) 19 0x00000000004a8892 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x4a8892) 20 0x00000000004651d7 main (/path/to/swift/bin/swift+0x4651d7) 21 0x00007f5c3b88e830 __libc_start_main /build/glibc-9tT8Do/glibc-2.23/csu/../csu/libc-start.c:325:0 22 0x0000000000462879 _start (/path/to/swift/bin/swift+0x462879) ```
11 lines
489 B
Swift
11 lines
489 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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protocol P}extension P{{}typealias a:P}extension P.a{protocol P
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