From a stack trace for a crash:

20:12:01     INFO -   2  libxul.so!bool js::DependentAddPtr, js::StackBaseShape, js::SystemAllocPolicy> >::add, js::UnownedBaseShape*>(js::ExclusiveContext const*, js::HashSet, js::StackBaseShape, js::SystemAllocPolicy>&, JS::RootedGeneric const&, js::UnownedBaseShape* const&) [HashTable.h:3ba384952a02 : 372 + 0x4]

If you can figure out where in that mess the actual method name is without staring at this for at least 15 seconds, I salute you. (Note that when I saw this originally, it wasn’t line-wrapped, making it even less readable.)

I’m not sure how this could be presented better, given the depth and breadth of template use in the class, in the template parameters to that class, in the method, and in the method arguments here.

http://whereswalden.com/2014/12/03/working-on-the-js-engine-episode-v/