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62 lines
1.6 KiB
62 lines
1.6 KiB
/*
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tests/test_alias_initialization.cpp -- test cases and example of different trampoline
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initialization modes
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Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>, Jason Rhinelander <jason@imaginary.ca>
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All rights reserved. Use of this source code is governed by a
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BSD-style license that can be found in the LICENSE file.
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*/
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#include "pybind11_tests.h"
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test_initializer alias_initialization([](py::module &m) {
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// don't invoke Python dispatch classes by default when instantiating C++ classes that were not
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// extended on the Python side
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struct A {
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virtual ~A() {}
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virtual void f() { py::print("A.f()"); }
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};
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struct PyA : A {
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PyA() { py::print("PyA.PyA()"); }
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~PyA() { py::print("PyA.~PyA()"); }
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void f() override {
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py::print("PyA.f()");
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PYBIND11_OVERLOAD(void, A, f);
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}
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};
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auto call_f = [](A *a) { a->f(); };
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py::class_<A, PyA>(m, "A")
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.def(py::init<>())
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.def("f", &A::f);
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m.def("call_f", call_f);
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// ... unless we explicitly request it, as in this example:
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struct A2 {
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virtual ~A2() {}
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virtual void f() { py::print("A2.f()"); }
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};
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struct PyA2 : A2 {
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PyA2() { py::print("PyA2.PyA2()"); }
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~PyA2() { py::print("PyA2.~PyA2()"); }
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void f() override {
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py::print("PyA2.f()");
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PYBIND11_OVERLOAD(void, A2, f);
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}
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};
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py::class_<A2, PyA2>(m, "A2")
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.def(py::init_alias<>())
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.def("f", &A2::f);
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m.def("call_f", [](A2 *a2) { a2->f(); });
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});
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