pybind11/tests/test_virtual_functions.cpp

33     // bit trickier, because the actual int& or std::string& or whatever only exists temporarily, so
35     virtual const std::string &get_string1() { return str1; }
36     virtual const std::string *get_string2() { return &str2; }
40     const std::string str1{"default1"}, str2{"default2"};
80     const std::string &get_string1() override {
82             const std::string &, /* Return type */
89     const std::string *get_string2() override {
91             const std::string *, /* Return type */
103     NonCopyable(NonCopyable &&o) { value = std::move(o.value); print_move_created(this); }
108     std::string get_value() const {
109         if (value) return std::to_string(*value); else return "(null)";
114     std::unique_ptr<int> value;
123     Movable(Movable &&m) { value = std::move(m.value); print_move_created(this); }
124     std::string get_value() const { return std::to_string(value); }
136     std::string print_nc(int a, int b) { return get_noncopyable(a, b).get_value(); }
137     std::string print_movable(int a, int b) { return get_movable(a, b).get_value(); }
152     virtual std::string dispatch() const { return {}; };
157     virtual std::string dispatch() const {
158         PYBIND11_OVERLOAD_PURE(std::string, Base, dispatch, /* no arguments */);
179     std::thread t(test_gil);
236             PYBIND11_OVERLOAD(PYBIND11_TYPE(typename std::enable_if<true, void>::type), A, f);
281         struct A { std::string value = "hi"; };
282         std::string v;
284         explicit OverrideTest(const std::string &v) : v{v} {}
285         virtual std::string str_value() { return v; }
286         virtual std::string &str_ref() { return v; }
295         std::string str_value() override { PYBIND11_OVERLOAD(std::string, OverrideTest, str_value); }
298 //      std::string &str_ref() override { PYBIND11_OVERLOAD(std::string &, OverrideTest, str_ref); }
301         std::string _tmp;
302         std::string str_ref_helper() { PYBIND11_OVERLOAD(std::string, OverrideTest, str_ref); }
304         std::string &str_ref() override { return _tmp = str_ref_helper(); }
313         .def(py::init<const std::string &>())
332     virtual std::string say_something(unsigned times) { \
333         std::string s = ""; \
338     std::string say_everything() { \
339         return say_something(1) + " " + std::to_string(unlucky_number()); \
348     std::string say_something(unsigned times) override { \
349         return "B says hi " + std::to_string(times) + " times"; \
378     std::string say_something(unsigned times) override { PYBIND11_OVERLOAD(std::string, A_Repeat, say_something, times); }
384     std::string say_something(unsigned times) override { PYBIND11_OVERLOAD(std::string, B_Repeat, say_something, times); }
391     std::string say_something(unsigned times) override { PYBIND11_OVERLOAD(std::string, C_Repeat, say_something, times); }
398     std::string say_something(unsigned times) override { PYBIND11_OVERLOAD(std::string, D_Repeat, say_something, times); }
421     std::string say_something(unsigned times) override { PYBIND11_OVERLOAD(std::string, Base, say_something, times); }