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Stack trace: ``` swift: /path/to/llvm/include/llvm/ADT/ArrayRef.h:139: const T &llvm::ArrayRef<swift::Substitution>::front() const [T = swift::Substitution]: Assertion `!empty()' failed. 8 swift 0x00000000010cff58 swift::GenericParamList::getSubstitutionMap(llvm::ArrayRef<swift::Substitution>) const + 1080 9 swift 0x0000000000ed957c swift::TypeChecker::applyUnboundGenericArguments(swift::UnboundGenericType*, swift::SourceLoc, swift::DeclContext*, llvm::MutableArrayRef<swift::TypeLoc>, bool, swift::GenericTypeResolver*) + 1164 10 swift 0x0000000000ed8f9f swift::TypeChecker::applyGenericArguments(swift::Type, swift::SourceLoc, swift::DeclContext*, swift::GenericIdentTypeRepr*, bool, swift::GenericTypeResolver*) + 431 14 swift 0x0000000000ed988e swift::TypeChecker::resolveIdentifierType(swift::DeclContext*, swift::IdentTypeRepr*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, bool, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) + 158 16 swift 0x0000000000eda8a4 swift::TypeChecker::resolveType(swift::TypeRepr*, swift::DeclContext*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) + 164 17 swift 0x0000000000ed978a swift::TypeChecker::validateType(swift::TypeLoc&, swift::DeclContext*, swift::OptionSet<swift::TypeResolutionFlags, unsigned int>, swift::GenericTypeResolver*, llvm::function_ref<bool (swift::TypeCheckRequest)>*) + 42 18 swift 0x0000000000ea7162 swift::TypeChecker::checkGenericParamList(swift::ArchetypeBuilder*, swift::GenericParamList*, swift::GenericSignature*, bool, swift::GenericTypeResolver*) + 690 19 swift 0x0000000000ea8597 swift::TypeChecker::validateGenericSignature(swift::GenericParamList*, swift::DeclContext*, swift::GenericSignature*, std::function<bool (swift::ArchetypeBuilder&)>, bool&) + 135 20 swift 0x0000000000ea8936 swift::TypeChecker::validateGenericTypeSignature(swift::GenericTypeDecl*) + 102 21 swift 0x0000000000e6cf7f swift::TypeChecker::validateDecl(swift::ValueDecl*, bool) + 367 22 swift 0x000000000107b917 swift::ProtocolDecl::existentialTypeSupportedSlow(swift::LazyResolver*) + 151 26 swift 0x0000000001015ff4 swift::Decl::walk(swift::ASTWalker&) + 20 27 swift 0x0000000000eddeed swift::TypeChecker::checkUnsupportedProtocolType(swift::Decl*) + 157 29 swift 0x0000000000e6d251 swift::TypeChecker::validateDecl(swift::ValueDecl*, bool) + 1089 34 swift 0x0000000000e72306 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) + 150 35 swift 0x0000000000e93d82 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int) + 994 36 swift 0x0000000000c339ef swift::CompilerInstance::performSema() + 3295 38 swift 0x00000000007c4556 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 2838 39 swift 0x0000000000791068 main + 2840 Stack dump: 0. Program arguments: /path/to/swift/bin/swift -frontend -c -primary-file validation-test/compiler_crashers/28288-swift-genericparamlist-getsubstitutionmap.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -module-name main -o /tmp/28288-swift-genericparamlist-getsubstitutionmap-b0dd35.o 1. While type-checking 'A' at validation-test/compiler_crashers/28288-swift-genericparamlist-getsubstitutionmap.swift:10:1 2. While type-checking 'B' at validation-test/compiler_crashers/28288-swift-genericparamlist-getsubstitutionmap.swift:11:1 3. While resolving type B<Int> at [validation-test/compiler_crashers/28288-swift-genericparamlist-getsubstitutionmap.swift:12:16 - line:12:21] RangeText="B<Int>" <unknown>:0: error: unable to execute command: Aborted <unknown>:0: error: compile command failed due to signal (use -v to see invocation) ```
14 lines
486 B
Swift
14 lines
486 B
Swift
// This source file is part of the Swift.org open source project
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// Copyright (c) 2014 - 2016 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 http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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// RUN: not --crash %target-swift-frontend %s -parse
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// REQUIRES: asserts
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protocol A{
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typealias B<a>:A
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enum S<T where B<Int>:d
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typealias d
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