Hi Mike, Can you share the link flags you are are using for your project? We know this works in at least some cases because we have a test for it:
See: https://github.com/emscripten-core/emscripten/blob/main/test/core/test_exceptions_primary.cpp and: https://github.com/emscripten-core/emscripten/blob/main/test/core/test_exceptions_primary.out I imagine there is some issue with the settings you are using. Do you get any kind of backtrace when you see the `Aborted(native code called abort())` message? Normally I would expect to see a backtrace? Does happens with you build with `-O0` vs `-O3`? Any more information? cheers, sam On Sat, Aug 19, 2023 at 5:05 AM 'Mike Lischke' via emscripten-discuss < emscripten-discuss@googlegroups.com> wrote: > Hi, > > In my library I have to catch errors in JS and let C++ do something with > them. A typical catch block in JS looks like this: > > catch (re) { > if (re instanceof RecognitionException) { > this.getErrorHandler().reportError(this, re); > this.getErrorHandler().recover(this); > } else { > throw re; > } > } > > The call to `recover` prints this message, however (-s ASSERTION used with > -O3): > > Aborted(native code called abort()) > > The native code is: > > void BailErrorStrategy::recover(Parser *recognizer, std::exception_ptr e) > { > ParserRuleContext *context = recognizer->getContext(); > do { > context->exception = e; > if (context->parent == nullptr) > break; > context = static_cast<ParserRuleContext *>(context->parent); > } while (true); > > try { > std::rethrow_exception(e); // Throw the exception to be able to catch and > rethrow nested. > } catch (RecognitionException & /*inner*/) { > std::throw_with_nested(ParseCancellationException()); > } > } > > I traced the execution to the `std::rethrow_exception` line, which ends > this call prematurely with the above error. To see if it is just a > different exception I added a catch(...) clause, but that is never > executed, so to me it looks as if `std::rethrow_exception` is something > that cannot be used in WebAssembly. Is that assumption correct and what can > I do to overcome that problem? > > Mike > -- > www.soft-gems.net > > -- > You received this message because you are subscribed to the Google Groups > "emscripten-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to emscripten-discuss+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/emscripten-discuss/3E0EEA6F-D458-4771-8443-FD4E242808D4%40googlemail.com > <https://groups.google.com/d/msgid/emscripten-discuss/3E0EEA6F-D458-4771-8443-FD4E242808D4%40googlemail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to emscripten-discuss+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/CAL_va29e-qnk%3DOQ%2Bg5crvZN8%3DO3AobCv2kwp-i3m-kN9JqBbMg%40mail.gmail.com.
