diff options
Diffstat (limited to 'ext/pybind11/tests/test_alias_initialization.cpp')
-rw-r--r-- | ext/pybind11/tests/test_alias_initialization.cpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/ext/pybind11/tests/test_alias_initialization.cpp b/ext/pybind11/tests/test_alias_initialization.cpp new file mode 100644 index 000000000..48e595695 --- /dev/null +++ b/ext/pybind11/tests/test_alias_initialization.cpp @@ -0,0 +1,62 @@ +/* + tests/test_alias_initialization.cpp -- test cases and example of different trampoline + initialization modes + + Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>, Jason Rhinelander <jason@imaginary.ca> + + All rights reserved. Use of this source code is governed by a + BSD-style license that can be found in the LICENSE file. +*/ + +#include "pybind11_tests.h" + +test_initializer alias_initialization([](py::module &m) { + // don't invoke Python dispatch classes by default when instantiating C++ classes that were not + // extended on the Python side + struct A { + virtual ~A() {} + virtual void f() { py::print("A.f()"); } + }; + + struct PyA : A { + PyA() { py::print("PyA.PyA()"); } + ~PyA() { py::print("PyA.~PyA()"); } + + void f() override { + py::print("PyA.f()"); + PYBIND11_OVERLOAD(void, A, f); + } + }; + + auto call_f = [](A *a) { a->f(); }; + + py::class_<A, PyA>(m, "A") + .def(py::init<>()) + .def("f", &A::f); + + m.def("call_f", call_f); + + + // ... unless we explicitly request it, as in this example: + struct A2 { + virtual ~A2() {} + virtual void f() { py::print("A2.f()"); } + }; + + struct PyA2 : A2 { + PyA2() { py::print("PyA2.PyA2()"); } + ~PyA2() { py::print("PyA2.~PyA2()"); } + void f() override { + py::print("PyA2.f()"); + PYBIND11_OVERLOAD(void, A2, f); + } + }; + + py::class_<A2, PyA2>(m, "A2") + .def(py::init_alias<>()) + .def("f", &A2::f); + + m.def("call_f", [](A2 *a2) { a2->f(); }); + +}); + |