Swift Compiler crash when building smart light example

[nicolas-christe]

I'm using toolchain swift-DEVELOPMENT-SNAPSHOT-2024-11-20-a-osx, esp-idf v5.2.3, esp-matter 1.3, and I have the following swift compiler crash when building smart-light example

0  swift-frontend           0x000000010aa152e8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1  swift-frontend           0x000000010aa139cc llvm::sys::RunSignalHandlers() + 112
2  swift-frontend           0x000000010aa15944 SignalHandler(int) + 304
3  libsystem_platform.dylib 0x0000000185fc0184 _sigtramp + 56
4  libsystem_pthread.dylib  0x0000000185f8af70 pthread_kill + 288
5  libsystem_c.dylib        0x0000000185e97908 abort + 128
6  libsystem_c.dylib        0x0000000185e96c1c err + 0
7  swift-frontend           0x000000010ab20d20 swift::irgen::hasValidSignatureForEmbedded(swift::SILFunction*) (.cold.1) + 0
8  swift-frontend           0x0000000105316cd4 swift::irgen::IRGenerator::emitLazyDefinitions() + 3212
9  swift-frontend           0x0000000105431760 swift::IRGenRequest::evaluate(swift::Evaluator&, swift::IRGenDescriptor) const + 2632
10 swift-frontend           0x000000010547f8e0 swift::GeneratedModule swift::SimpleRequest<swift::IRGenRequest, swift::GeneratedModule (swift::IRGenDescriptor), (swift::RequestFlags)17>::callDerived<0ul>(swift::Evaluator&, std::__1::integer_sequence<unsigned long, 0ul>) const + 200
11 swift-frontend           0x0000000105439bc0 swift::IRGenRequest::OutputType swift::Evaluator::getResultUncached<swift::IRGenRequest, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()>(swift::IRGenRequest const&, swift::IRGenRequest::OutputType swift::evaluateOrFatal<swift::IRGenRequest>(swift::Evaluator&, swift::IRGenRequest)::'lambda'()) + 212
12 swift-frontend           0x0000000105432678 swift::performIRGeneration(swift::ModuleDecl*, swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::StringRef, swift::PrimarySpecificPaths const&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>, llvm::GlobalVariable**) + 1440
13 swift-frontend           0x0000000104f05b68 generateIR(swift::IRGenOptions const&, swift::TBDGenOptions const&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, swift::PrimarySpecificPaths const&, llvm::StringRef, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, llvm::GlobalVariable*&, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>>>) + 272
14 swift-frontend           0x0000000104f02400 performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 1376
15 swift-frontend           0x0000000104f01a8c swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1228
16 swift-frontend           0x0000000104f0dde8 withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) + 160
17 swift-frontend           0x0000000104f0372c performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 716
18 swift-frontend           0x0000000104f02df8 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 2328
19 swift-frontend           0x0000000104cd7490 swift::mainEntry(int, char const**) + 3100
20 dyld                     0x0000000185c08274 start + 2840

[nicolas-christe]

I can build this example successfully with the snapshot October 8, 2024.
I also tried the next one (from October 8, 2024) but its crashing

[nicolas-christe]

I reduced the code example and found that the issue is when calling esp_matter.start. I commented out all the code and the crash is when calling esp_matter.start {_,_ in }

[kubamracek]

Resolved via #32

The compiler crash was resolved on the Swift compiler side, the latest swift.org downloadable toolchain should work now.