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[SR-12460] Declaring an operator inside an extension without a name crashes the compiler #54900

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ahoppen opened this issue Mar 31, 2020 · 2 comments
Closed

[SR-12460] Declaring an operator inside an extension without a name crashes the compiler #54900

ahoppen opened this issue Mar 31, 2020 · 2 comments
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler itself good first issue Good for newcomers

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@ahoppen
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ahoppen commented Mar 31, 2020

Previous ID SR-12460
Radar None
Original Reporter @ahoppen
Type Bug
Status Closed
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, StarterBug
Assignee eyork (JIRA)
Priority Medium

md5: 26eab3f6c5941d48cff67d6d858e32f8

Issue Description:

Trying to compile the following code crashes the compiler:

extension {
  func ==(lhs: Foo, rhs: Foo) -> Bool {}
}

Note that the extension hasn’t got a name.

Stack trace:

1.  Apple Swift version 5.2 (swiftlang-1103.0.32.1 clang-1103.0.32.29)
2.  While evaluating request IsStaticRequest(test.(file). extension.==@/Users/alex/Desktop/test/test/main.swift:2:8)
0  swift                    0x000000010482a4ea PrintStackTraceSignalHandler(void*) + 42
1  swift                    0x0000000104829cc0 SignalHandler(int) + 352
2  libsystem_platform.dylib 0x00007fff6bdc042d _sigtramp + 29
3  libsystem_platform.dylib 000000000000000000 _sigtramp + 2485386224
4  swift                    0x00000001015d9671 swift::DiagnosticEngine::formatDiagnosticText(llvm::raw_ostream&, llvm::StringRef, llvm::ArrayRef<swift::DiagnosticArgument>, swift::DiagnosticFormatOptions) + 5633
5  swift                    0x0000000100899d7b swift::PrintingDiagnosticConsumer::printDiagnostic(swift::SourceManager&, swift::DiagnosticInfo const&) + 1291
6  swift                    0x00000001008995fd swift::PrintingDiagnosticConsumer::handleDiagnostic(swift::SourceManager&, swift::DiagnosticInfo const&) + 45
7  swift                    0x00000001015d65e1 swift::DiagnosticEngine::emitDiagnostic(swift::Diagnostic const&) + 1713
8  swift                    0x00000001015d5c9c swift::DiagnosticEngine::flushActiveDiagnostic() + 604
9  swift                    0x000000010122349d swift::SimpleRequest<swift::IsStaticRequest, bool (swift::FuncDecl*), (swift::CacheKind)2>::evaluateRequest(swift::IsStaticRequest const&, swift::Evaluator&) + 1805
10 swift                    0x000000010157f99e swift::IsStaticRequest::OutputType swift::evaluateOrDefault<swift::IsStaticRequest>(swift::Evaluator&, swift::IsStaticRequest, swift::IsStaticRequest::OutputType) + 958
11 swift                    0x00000001015991d2 swift::ValueDecl::isInstanceMember() const + 178
12 swift                    0x000000010091570a swift::index::getSymbolInfoForDecl(swift::Decl const*) + 218
13 swift                    0x000000010090a5dc (anonymous namespace)::IndexSwiftASTWalker::initIndexSymbol(swift::ValueDecl*, swift::SourceLoc, bool, swift::index::IndexSymbol&) + 252
14 swift                    0x0000000100907357 (anonymous namespace)::IndexSwiftASTWalker::walkToDeclPre(swift::Decl*, swift::CharSourceRange) + 1911
15 swift                    0x00000001008ff704 (anonymous namespace)::SemaAnnotator::walkToDeclPre(swift::Decl*) + 1876
16 swift                    0x0000000101556dd6 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 230
17 swift                    0x000000010155956e swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Decl*) + 2654
18 swift                    0x0000000101556e03 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 275
19 swift                    0x00000001016491b2 swift::SourceFile::walk(swift::ASTWalker&) + 146
20 swift                    0x00000001008fdd0b swift::SourceEntityWalker::walk(swift::SourceFile&) + 235
21 swift                    0x000000010090d5cf (anonymous namespace)::IndexSwiftASTWalker::visitModule(swift::ModuleDecl&) + 223
22 swift                    0x000000010090ed96 recordSourceFileUnit(swift::SourceFile*, llvm::StringRef, llvm::StringRef, bool, bool, llvm::StringRef, llvm::ArrayRef<clang::FileEntry const*>, clang::CompilerInstance const&, swift::DiagnosticEngine&) + 2870
23 swift                    0x0000000100581e5b emitIndexDataIfNeeded(swift::SourceFile*, swift::CompilerInvocation const&, swift::CompilerInstance&) + 779
24 swift                    0x000000010057a02a swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 38282
25 swift                    0x00000001004f44d3 main + 1283
26 libdyld.dylib            0x00007fff6bbc77fd start + 1
error: Segmentation fault: 11 (in target 'test' from project 'test')

Using Swift 5.2 shipped with Xcode 11.4 (11E146, swiftlang-1103.0.32.1)
@swift-ci
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Comment by Eric York (JIRA)

I am trying a fix this issue: #30979

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Comment by Eric York (JIRA)

Fixed in #30979

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler itself good first issue Good for newcomers
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