Copy-by-value in sdbus++ generated objects
venture at google.com
Sat Nov 3 03:32:50 AEDT 2018
Most repos inherit from an auto-generated object. Those objects pass
all parameters by value. This is fine for many cases where they would
need to create a copy of it, but in the case where:
The values match it's wasteful to copy. It's also possible the cpp I
learned way back is different in how this behavior works, but I wanted
to check. Because of the prevalence of this code, if there are lots
of updates that don't actually change the value, it could optimize
quite a bit at run-time.
It would require a lot of simultaneous fixes (or two different objects
generated, and transitioning everything).
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