3 Commits

Author	SHA1	Message	Date
Jason Rhinelander	353615f77e	Make init_holder do registration, and rename to init_instance ... The instance registration for offset base types fails (under macOS, with a segfault) in the presense of virtual base types. The issue occurs when trying to `static_cast<Base *>(derived_ptr)` when `derived_ptr` has been allocated (via `operator new`) but not initialized. This commit fixes the issue by moving the addition to `registered_instances` into `init_holder` rather than immediately after value pointer allocation. This also renames it to `init_instance` since it does more than holder initialization now. (I also further renamed `init_holder_helper` to `init_holder` since `init_holder` isn't used anymore). Fixes #959.	2017-07-28 20:39:33 -04:00
Bruce Merry	9d698f7fcc	Hold strong references to keep_alive patients ... This fixes #856. Instead of the weakref trick, the internals structure holds an unordered_map from PyObject* to a vector of references. To avoid the cost of the unordered_map lookup for objects that don't have any keep_alive patients, a flag is added to each instance to indicate whether there is anything to do.	2017-06-24 12:59:46 -04:00
Dean Moldovan	1ac19036d6	Add a scope guard call policy ... ```c++ m.def("foo", foo, py::call_guard<T>()); ``` is equivalent to: ```c++ m.def("foo", [](args...) { T scope_guard; return foo(args...); // forwarded arguments }); ```	2017-04-03 00:52:47 +02:00