Closed
Description
The Swift compiler crashes when compiling this code with .interoperabilityMode(.Cxx):
@freestanding(expression)
public macro log(error: String) = #externalMacro(module: "CompilerPlugin", type: "LogMacro")
@freestanding(expression)
public macro log(fault: String) = #externalMacro(module: "CompilerPlugin", type: "LogMacro")1. Apple Swift version 5.11-dev (LLVM e22c96610989bdb, Swift bd372c2d6861ce3)
2. Compiling with the current language version
3. While generating Clang header
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 swift-frontend 0x000000010959ce08 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1 swift-frontend 0x000000010959b564 llvm::sys::RunSignalHandlers() + 112
2 swift-frontend 0x000000010959d458 SignalHandler(int) + 304
3 libsystem_platform.dylib 0x0000000183878a24 _sigtramp + 56
4 libsystem_pthread.dylib 0x0000000183848cc0 pthread_kill + 288
5 libsystem_c.dylib 0x0000000183754a40 abort + 180
6 libsystem_c.dylib 0x0000000183753d30 err + 0
7 swift-frontend 0x00000001095d2c24 (anonymous namespace)::ModuleWriter::write()::'lambda'(swift::Decl* const*, swift::Decl* const*)::__invoke(swift::Decl* const*, swift::Decl* const*) (.cold.9) + 0
8 swift-frontend 0x00000001043b7700 (anonymous namespace)::ModuleWriter::write()::'lambda'(swift::Decl* const*, swift::Decl* const*)::__invoke(swift::Decl* const*, swift::Decl* const*) + 484
9 libsystem_c.dylib 0x00000001836ea4c4 _isort + 136
10 swift-frontend 0x00000001043b4260 (anonymous namespace)::ModuleWriter::write() + 1168
11 swift-frontend 0x00000001043b5da4 swift::printModuleContentsAsCxx(llvm::raw_ostream&, swift::ModuleDecl&, swift::SwiftToClangInteropContext&, bool, llvm::StringSet<llvm::MallocAllocator>&) + 1408
…
It is crashing because the two macros share a name. This is happening on the latest snapshot, and I attached a sample project to reproduce the issue
CompilerCrash.zip