search for: handleerror

...sion of [5] for testing. Here is an example how to use the library by extracting and printing the objc class names: ``` MachOMetadata ObjCInfo(InputObject); if (auto ObjCClasses = ObjCInfo.classes()) { for (auto c : *ObjCClasses) { auto ObjCClass = *c; if (!ObjCClass) { handleError(ObjCClass.takeError()); continue; } auto name = ObjCClass->getName(); if (!name) { handleError(name.takeError()); continue; } outs() << *name << "\n"; } ``` I am preparing a patch and will send out when it is ready. L...

...ver untested parts of the code (any mutation that doesn't result in a test failure is missing testing)) would probably find these, or maybe static analysis. Alternatively, if this technique were really embedded deep into llvm::Error, then it could differentiate between the various handles in a handleError - except I suppose it'd have no way of creating arbitrary errors required to pass to them - maybe with some API entry point (give for any T that is an ErrorInfo, have ErrorInfo::createTestStub or the like that could be used). It'd be tricky, I'd imagine. - Dave > > I will get b...

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Hi Stefan, David, This is very interesting stuff - it adds a dimension of error security that Error/Expected can't provide on their own. I think it would be interesting to try to build a tool around this. Did you identify many cases where "real work" (in your example, the nullptr dereference" was being done in an error branch? My suspicion is that that should be rare, but that