mirror of
https://github.com/pybind/pybind11.git
synced 2026-05-11 08:50:31 +00:00
Update all remaining tests to new test styles
This udpates all the remaining tests to the new test suite code and comment styles started in #898. For the most part, the test coverage here is unchanged, with a few minor exceptions as noted below. - test_constants_and_functions: this adds more overload tests with overloads with different number of arguments for more comprehensive overload_cast testing. The test style conversion broke the overload tests under MSVC 2015, prompting the additional tests while looking for a workaround. - test_eigen: this dropped the unused functions `get_cm_corners` and `get_cm_corners_const`--these same tests were duplicates of the same things provided (and used) via ReturnTester methods. - test_opaque_types: this test had a hidden dependence on ExampleMandA which is now fixed by using the global UserType which suffices for the relevant test. - test_methods_and_attributes: this required some additions to UserType to make it usable as a replacement for the test's previous SimpleType: UserType gained a value mutator, and the `value` property is not mutable (it was previously readonly). Some overload tests were also added to better test overload_cast (as described above). - test_numpy_array: removed the untemplated mutate_data/mutate_data_t: the templated versions with an empty parameter pack expand to the same thing. - test_stl: this was already mostly in the new style; this just tweaks things a bit, localizing a class, and adding some missing `// test_whatever` comments. - test_virtual_functions: like `test_stl`, this was mostly in the new test style already, but needed some `// test_whatever` comments. This commit also moves the inherited virtual example code to the end of the file, after the main set of tests (since it is less important than the other tests, and rather length); it also got renamed to `test_inherited_virtuals` (from `test_inheriting_repeat`) because it tests both inherited virtual approaches, not just the repeat approach.
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@@ -145,16 +145,147 @@ class NCVirtTrampoline : public NCVirt {
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}
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};
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int runExampleVirt(ExampleVirt *ex, int value) {
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return ex->run(value);
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}
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struct Base {
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/* for some reason MSVC2015 can't compile this if the function is pure virtual */
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virtual std::string dispatch() const { return {}; };
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};
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bool runExampleVirtBool(ExampleVirt* ex) {
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return ex->run_bool();
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}
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struct DispatchIssue : Base {
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virtual std::string dispatch() const {
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PYBIND11_OVERLOAD_PURE(std::string, Base, dispatch, /* no arguments */);
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}
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};
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void runExampleVirtVirtual(ExampleVirt *ex) {
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ex->pure_virtual();
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// Forward declaration (so that we can put the main tests here; the inherited virtual approaches are
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// rather long).
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void initialize_inherited_virtuals(py::module &m);
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TEST_SUBMODULE(virtual_functions, m) {
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// test_override
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py::class_<ExampleVirt, PyExampleVirt>(m, "ExampleVirt")
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.def(py::init<int>())
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/* Reference original class in function definitions */
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.def("run", &ExampleVirt::run)
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.def("run_bool", &ExampleVirt::run_bool)
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.def("pure_virtual", &ExampleVirt::pure_virtual);
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py::class_<NonCopyable>(m, "NonCopyable")
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.def(py::init<int, int>());
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py::class_<Movable>(m, "Movable")
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.def(py::init<int, int>());
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// test_move_support
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#if !defined(__INTEL_COMPILER)
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py::class_<NCVirt, NCVirtTrampoline>(m, "NCVirt")
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.def(py::init<>())
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.def("get_noncopyable", &NCVirt::get_noncopyable)
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.def("get_movable", &NCVirt::get_movable)
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.def("print_nc", &NCVirt::print_nc)
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.def("print_movable", &NCVirt::print_movable);
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#endif
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m.def("runExampleVirt", [](ExampleVirt *ex, int value) { return ex->run(value); });
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m.def("runExampleVirtBool", [](ExampleVirt* ex) { return ex->run_bool(); });
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m.def("runExampleVirtVirtual", [](ExampleVirt *ex) { ex->pure_virtual(); });
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m.def("cstats_debug", &ConstructorStats::get<ExampleVirt>);
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initialize_inherited_virtuals(m);
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// test_alias_delay_initialization1
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// don't invoke Python dispatch classes by default when instantiating C++ classes
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// that were not 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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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", [](A *a) { a->f(); });
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// test_alias_delay_initialization2
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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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// test_dispatch_issue
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// #159: virtual function dispatch has problems with similar-named functions
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py::class_<Base, DispatchIssue>(m, "DispatchIssue")
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.def(py::init<>())
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.def("dispatch", &Base::dispatch);
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m.def("dispatch_issue_go", [](const Base * b) { return b->dispatch(); });
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// test_override_ref
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// #392/397: overridding reference-returning functions
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class OverrideTest {
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public:
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struct A { std::string value = "hi"; };
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std::string v;
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A a;
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explicit OverrideTest(const std::string &v) : v{v} {}
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virtual std::string str_value() { return v; }
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virtual std::string &str_ref() { return v; }
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virtual A A_value() { return a; }
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virtual A &A_ref() { return a; }
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};
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class PyOverrideTest : public OverrideTest {
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public:
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using OverrideTest::OverrideTest;
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std::string str_value() override { PYBIND11_OVERLOAD(std::string, OverrideTest, str_value); }
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// Not allowed (uncommenting should hit a static_assert failure): we can't get a reference
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// to a python numeric value, since we only copy values in the numeric type caster:
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// std::string &str_ref() override { PYBIND11_OVERLOAD(std::string &, OverrideTest, str_ref); }
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// But we can work around it like this:
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private:
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std::string _tmp;
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std::string str_ref_helper() { PYBIND11_OVERLOAD(std::string, OverrideTest, str_ref); }
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public:
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std::string &str_ref() override { return _tmp = str_ref_helper(); }
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A A_value() override { PYBIND11_OVERLOAD(A, OverrideTest, A_value); }
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A &A_ref() override { PYBIND11_OVERLOAD(A &, OverrideTest, A_ref); }
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};
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py::class_<OverrideTest::A>(m, "OverrideTest_A")
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.def_readwrite("value", &OverrideTest::A::value);
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py::class_<OverrideTest, PyOverrideTest>(m, "OverrideTest")
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.def(py::init<const std::string &>())
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.def("str_value", &OverrideTest::str_value)
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// .def("str_ref", &OverrideTest::str_ref)
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.def("A_value", &OverrideTest::A_value)
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.def("A_ref", &OverrideTest::A_ref);
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}
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@@ -281,6 +412,8 @@ public:
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void initialize_inherited_virtuals(py::module &m) {
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// test_inherited_virtuals
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// Method 1: repeat
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py::class_<A_Repeat, PyA_Repeat>(m, "A_Repeat")
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.def(py::init<>())
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@@ -295,6 +428,7 @@ void initialize_inherited_virtuals(py::module &m) {
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py::class_<D_Repeat, C_Repeat, PyD_Repeat>(m, "D_Repeat")
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.def(py::init<>());
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// test_
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// Method 2: Templated trampolines
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py::class_<A_Tpl, PyA_Tpl<>>(m, "A_Tpl")
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.def(py::init<>())
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@@ -311,137 +445,3 @@ void initialize_inherited_virtuals(py::module &m) {
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};
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struct Base {
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/* for some reason MSVC2015 can't compile this if the function is pure virtual */
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virtual std::string dispatch() const { return {}; };
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};
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struct DispatchIssue : Base {
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virtual std::string dispatch() const {
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PYBIND11_OVERLOAD_PURE(std::string, Base, dispatch, /* no arguments */);
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}
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};
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TEST_SUBMODULE(virtual_functions, m) {
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py::class_<ExampleVirt, PyExampleVirt>(m, "ExampleVirt")
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.def(py::init<int>())
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/* Reference original class in function definitions */
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.def("run", &ExampleVirt::run)
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.def("run_bool", &ExampleVirt::run_bool)
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.def("pure_virtual", &ExampleVirt::pure_virtual);
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py::class_<NonCopyable>(m, "NonCopyable")
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.def(py::init<int, int>());
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py::class_<Movable>(m, "Movable")
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.def(py::init<int, int>());
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#if !defined(__INTEL_COMPILER)
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py::class_<NCVirt, NCVirtTrampoline>(m, "NCVirt")
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.def(py::init<>())
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.def("get_noncopyable", &NCVirt::get_noncopyable)
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.def("get_movable", &NCVirt::get_movable)
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.def("print_nc", &NCVirt::print_nc)
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.def("print_movable", &NCVirt::print_movable);
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#endif
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m.def("runExampleVirt", &runExampleVirt);
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m.def("runExampleVirtBool", &runExampleVirtBool);
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m.def("runExampleVirtVirtual", &runExampleVirtVirtual);
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m.def("cstats_debug", &ConstructorStats::get<ExampleVirt>);
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initialize_inherited_virtuals(m);
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// test_alias_delay_initialization1
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// don't invoke Python dispatch classes by default when instantiating C++ classes
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// that were not 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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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", [](A *a) { a->f(); });
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// test_alias_delay_initialization2
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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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// #159: virtual function dispatch has problems with similar-named functions
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py::class_<Base, DispatchIssue>(m, "DispatchIssue")
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.def(py::init<>())
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.def("dispatch", &Base::dispatch);
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m.def("dispatch_issue_go", [](const Base * b) { return b->dispatch(); });
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// #392/397: overridding reference-returning functions
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class OverrideTest {
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public:
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struct A { std::string value = "hi"; };
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std::string v;
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A a;
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explicit OverrideTest(const std::string &v) : v{v} {}
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virtual std::string str_value() { return v; }
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virtual std::string &str_ref() { return v; }
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virtual A A_value() { return a; }
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virtual A &A_ref() { return a; }
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};
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class PyOverrideTest : public OverrideTest {
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public:
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using OverrideTest::OverrideTest;
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std::string str_value() override { PYBIND11_OVERLOAD(std::string, OverrideTest, str_value); }
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// Not allowed (uncommenting should hit a static_assert failure): we can't get a reference
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// to a python numeric value, since we only copy values in the numeric type caster:
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// std::string &str_ref() override { PYBIND11_OVERLOAD(std::string &, OverrideTest, str_ref); }
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// But we can work around it like this:
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private:
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std::string _tmp;
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std::string str_ref_helper() { PYBIND11_OVERLOAD(std::string, OverrideTest, str_ref); }
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public:
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std::string &str_ref() override { return _tmp = str_ref_helper(); }
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A A_value() override { PYBIND11_OVERLOAD(A, OverrideTest, A_value); }
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A &A_ref() override { PYBIND11_OVERLOAD(A &, OverrideTest, A_ref); }
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};
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py::class_<OverrideTest::A>(m, "OverrideTest_A")
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.def_readwrite("value", &OverrideTest::A::value);
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py::class_<OverrideTest, PyOverrideTest>(m, "OverrideTest")
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.def(py::init<const std::string &>())
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.def("str_value", &OverrideTest::str_value)
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// .def("str_ref", &OverrideTest::str_ref)
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.def("A_value", &OverrideTest::A_value)
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.def("A_ref", &OverrideTest::A_ref);
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}
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