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55 lines
1.7 KiB
55 lines
1.7 KiB
/*
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example/example9.cpp -- nested modules, importing modules, and
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internal references
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Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
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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 "example.h"
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void submodule_func() {
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std::cout << "submodule_func()" << std::endl;
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}
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class A {
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public:
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A(int v) : v(v) { std::cout << "A constructor" << std::endl; }
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~A() { std::cout << "A destructor" << std::endl; }
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A(const A&) { std::cout << "A copy constructor" << std::endl; }
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std::string toString() { return "A[" + std::to_string(v) + "]"; }
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private:
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int v;
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};
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class B {
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public:
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B() { std::cout << "B constructor" << std::endl; }
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~B() { std::cout << "B destructor" << std::endl; }
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B(const B&) { std::cout << "B copy constructor" << std::endl; }
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A &get_a1() { return a1; }
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A &get_a2() { return a2; }
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A a1{1};
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A a2{2};
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};
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void init_ex9(py::module &m) {
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py::module m_sub = m.def_submodule("submodule");
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m_sub.def("submodule_func", &submodule_func);
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py::class_<A>(m_sub, "A")
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.def(py::init<int>())
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.def("__repr__", &A::toString);
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py::class_<B>(m_sub, "B")
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.def(py::init<>())
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.def("get_a1", &B::get_a1, "Return the internal A 1", py::return_value_policy::reference_internal)
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.def("get_a2", &B::get_a2, "Return the internal A 2", py::return_value_policy::reference_internal)
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.def_readwrite("a1", &B::a1) // def_readonly uses an internal reference return policy by default
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.def_readwrite("a2", &B::a2);
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m.attr("OD") = py::module::import("collections").attr("OrderedDict");
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}
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