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Add test case for crash triggered in `swift::TypeAliasDecl::getUnboundGenericType(...)`. Current number of unresolved compiler crashers: 41 (5577 resolved) /cc @slavapestov - just wanted to let you know that this crasher caused an assertion failure for the assertion `getGenericParams()` added on 2016-12-15 by you in commit2c6b9f71:-) Assertion failure in [`lib/AST/Decl.cpp (line 2410)`](dacbb8750f/lib/AST/Decl.cpp (L2410)): ``` Assertion `getGenericParams()' failed. When executing: swift::UnboundGenericType *swift::TypeAliasDecl::getUnboundGenericType() const ``` Assertion context: ```c++ // Set the interface type of this declaration. setInterfaceType(MetatypeType::get(aliasTy, Ctx)); } UnboundGenericType *TypeAliasDecl::getUnboundGenericType() const { assert(getGenericParams()); return UnboundGenericType::get( const_cast<TypeAliasDecl *>(this), getDeclContext()->getDeclaredTypeOfContext(), getASTContext()); } ``` Stack trace: ``` 0 0x0000000003ac2848 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/path/to/swift/bin/swift+0x3ac2848) 1 0x0000000003ac2f86 SignalHandler(int) (/path/to/swift/bin/swift+0x3ac2f86) 2 0x00007f6b83957390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390) 3 0x00007f6b81e7c428 gsignal /build/glibc-bfm8X4/glibc-2.23/signal/../sysdeps/unix/sysv/linux/raise.c:54:0 4 0x00007f6b81e7e02a abort /build/glibc-bfm8X4/glibc-2.23/stdlib/abort.c:91:0 5 0x00007f6b81e74bd7 __assert_fail_base /build/glibc-bfm8X4/glibc-2.23/assert/assert.c:92:0 6 0x00007f6b81e74c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82) 7 0x0000000001557feb swift::TypeAliasDecl::getUnboundGenericType() const (/path/to/swift/bin/swift+0x1557feb) 8 0x0000000001443557 noteArchetypeSource(swift::TypeLoc const&, swift::ArchetypeType*, swift::constraints::ConstraintSystem&) (/path/to/swift/bin/swift+0x1443557) 9 0x00000000014432be (anonymous namespace)::FailureDiagnosis::diagnoseUnboundArchetype(swift::ArchetypeType*, swift::Expr*) (/path/to/swift/bin/swift+0x14432be) 10 0x000000000141d903 (anonymous namespace)::FailureDiagnosis::diagnoseAmbiguity(swift::Expr*) (/path/to/swift/bin/swift+0x141d903) 11 0x000000000141a723 swift::constraints::ConstraintSystem::diagnoseFailureForExpr(swift::Expr*) (/path/to/swift/bin/swift+0x141a723) 12 0x000000000141ef69 swift::constraints::ConstraintSystem::salvage(llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::Expr*) (/path/to/swift/bin/swift+0x141ef69) 13 0x000000000134c348 swift::TypeChecker::solveForExpression(swift::Expr*&, swift::DeclContext*, swift::Type, swift::FreeTypeVariableBinding, swift::ExprTypeCheckListener*, swift::constraints::ConstraintSystem&, llvm::SmallVectorImpl<swift::constraints::Solution>&, swift::OptionSet<swift::TypeCheckExprFlags, unsigned int>) (/path/to/swift/bin/swift+0x134c348) 14 0x000000000134fd6f swift::TypeChecker::typeCheckExpression(swift::Expr*&, swift::DeclContext*, swift::TypeLoc, swift::ContextualTypePurpose, swift::OptionSet<swift::TypeCheckExprFlags, unsigned int>, swift::ExprTypeCheckListener*, swift::constraints::ConstraintSystem*) (/path/to/swift/bin/swift+0x134fd6f) 15 0x0000000001354234 swift::TypeChecker::typeCheckBinding(swift::Pattern*&, swift::Expr*&, swift::DeclContext*, bool) (/path/to/swift/bin/swift+0x1354234) 16 0x0000000001354496 swift::TypeChecker::typeCheckPatternBinding(swift::PatternBindingDecl*, unsigned int, bool) (/path/to/swift/bin/swift+0x1354496) 17 0x000000000136c508 validatePatternBindingEntries(swift::TypeChecker&, swift::PatternBindingDecl*) (/path/to/swift/bin/swift+0x136c508) 18 0x00000000013668dd (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x13668dd) 19 0x000000000137749b (anonymous namespace)::DeclChecker::visitClassDecl(swift::ClassDecl*) (/path/to/swift/bin/swift+0x137749b) 20 0x000000000136698e (anonymous namespace)::DeclChecker::visit(swift::Decl*) (/path/to/swift/bin/swift+0x136698e) 21 0x0000000001366793 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) (/path/to/swift/bin/swift+0x1366793) 22 0x00000000013f0fb4 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+0x13f0fb4) 23 0x0000000000fa6707 swift::CompilerInstance::performSema() (/path/to/swift/bin/swift+0xfa6707) 24 0x00000000004ad858 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) (/path/to/swift/bin/swift+0x4ad858) 25 0x00000000004abe41 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/path/to/swift/bin/swift+0x4abe41) 26 0x00000000004656b7 main (/path/to/swift/bin/swift+0x4656b7) 27 0x00007f6b81e67830 __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:325:0 28 0x0000000000462d59 _start (/path/to/swift/bin/swift+0x462d59) ```
14 lines
482 B
Swift
14 lines
482 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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let d=a
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& a
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P{{{}}}typealias a:A protocol A
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