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initLibUtil: Add exception handling self-check

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This commit is contained in:
Robert Hensing 2023-08-11 17:22:55 +02:00
parent 010dc7958e
commit c4dbb55ba9
3 changed files with 26 additions and 0 deletions
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5
src/libutil/error.cc
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@ -14,6 +14,11 @@ void BaseError::addTrace(std::shared_ptr<AbstractPos> && e, hintformat hint, boo
err.traces.push_front(Trace { .pos = std::move(e), .hint = hint, .frame = frame });
}
void throwExceptionSelfCheck(){
// This is meant to be caught in initLibUtil()
throw SysError("C++ exception handling is broken. This would appear to be a problem with the way Nix was compiled and/or linked and/or loaded.");
}
// c++ std::exception descendants must have a 'const char* what()' function.
// This stringifies the error and caches it for use by what(), or similarly by msg().
const std::string & BaseError::calcWhat() const