Wenzel Jakob 86d825f330 Redesigned virtual call mechanism and user-facing syntax (breaking change!) ... Sergey Lyskov pointed out that the trampoline mechanism used to override virtual methods from within Python caused unnecessary overheads when instantiating the original (i.e. non-extended) class. This commit removes this inefficiency, but some syntax changes were needed to achieve this. Projects using this features will need to make a few changes: In particular, the example below shows the old syntax to instantiate a class with a trampoline: class_<TrampolineClass>("MyClass") .alias<MyClass>() .... This is what should be used now: class_<MyClass, std::unique_ptr<MyClass, TrampolineClass>("MyClass") .... Importantly, the trampoline class is now specified as the *third* argument to the class_ template, and the alias<..>() call is gone. The second argument with the unique pointer is simply the default holder type used by pybind11.		2016-05-26 13:36:24 +02:00
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pybind11	Redesigned virtual call mechanism and user-facing syntax (breaking change!)	2016-05-26 13:36:24 +02:00