mirror of
https://github.com/pybind/pybind11.git
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661 lines
25 KiB
C++
661 lines
25 KiB
C++
/*
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tests/test_class.cpp -- test py::class_ definitions and basic functionality
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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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#if defined(__INTEL_COMPILER) && __cplusplus >= 201703L
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// Intel compiler requires a separate header file to support aligned new operators
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// and does not set the __cpp_aligned_new feature macro.
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// This header needs to be included before pybind11.
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# include <aligned_new>
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#endif
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#include <pybind11/stl.h>
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#include "constructor_stats.h"
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#include "local_bindings.h"
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#include "pybind11_tests.h"
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#include <utility>
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PYBIND11_WARNING_DISABLE_MSVC(4324)
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// warning C4324: structure was padded due to alignment specifier
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// test_brace_initialization
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struct NoBraceInitialization {
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explicit NoBraceInitialization(std::vector<int> v) : vec{std::move(v)} {}
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template <typename T>
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NoBraceInitialization(std::initializer_list<T> l) : vec(l) {}
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std::vector<int> vec;
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};
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namespace test_class {
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namespace pr4220_tripped_over_this { // PR #4227
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template <int>
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struct SoEmpty {};
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template <typename T>
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std::string get_msg(const T &) {
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return "This is really only meant to exercise successful compilation.";
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}
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using Empty0 = SoEmpty<0x0>;
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void bind_empty0(py::module_ &m) {
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py::class_<Empty0>(m, "Empty0").def(py::init<>()).def("get_msg", get_msg<Empty0>);
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}
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} // namespace pr4220_tripped_over_this
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} // namespace test_class
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TEST_SUBMODULE(class_, m) {
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m.def("obj_class_name", [](py::handle obj) { return py::detail::obj_class_name(obj.ptr()); });
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// test_instance
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struct NoConstructor {
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NoConstructor() = default;
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NoConstructor(const NoConstructor &) = default;
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NoConstructor(NoConstructor &&) = default;
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static NoConstructor *new_instance() {
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auto *ptr = new NoConstructor();
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print_created(ptr, "via new_instance");
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return ptr;
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}
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~NoConstructor() { print_destroyed(this); }
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};
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struct NoConstructorNew {
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NoConstructorNew() = default;
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NoConstructorNew(const NoConstructorNew &) = default;
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NoConstructorNew(NoConstructorNew &&) = default;
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static NoConstructorNew *new_instance() {
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auto *ptr = new NoConstructorNew();
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print_created(ptr, "via new_instance");
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return ptr;
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}
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~NoConstructorNew() { print_destroyed(this); }
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};
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py::class_<NoConstructor>(m, "NoConstructor")
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.def_static("new_instance", &NoConstructor::new_instance, "Return an instance");
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py::class_<NoConstructorNew>(m, "NoConstructorNew")
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.def(py::init([]() { return nullptr; })) // Need a NOOP __init__
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.def_static("__new__",
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[](const py::object &) { return NoConstructorNew::new_instance(); });
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// test_inheritance
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class Pet {
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public:
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Pet(const std::string &name, const std::string &species)
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: m_name(name), m_species(species) {}
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std::string name() const { return m_name; }
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std::string species() const { return m_species; }
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private:
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std::string m_name;
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std::string m_species;
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};
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class Dog : public Pet {
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public:
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explicit Dog(const std::string &name) : Pet(name, "dog") {}
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std::string bark() const { return "Woof!"; }
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};
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class Rabbit : public Pet {
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public:
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explicit Rabbit(const std::string &name) : Pet(name, "parrot") {}
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};
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class Hamster : public Pet {
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public:
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explicit Hamster(const std::string &name) : Pet(name, "rodent") {}
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};
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class Chimera : public Pet {
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Chimera() : Pet("Kimmy", "chimera") {}
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};
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py::class_<Pet> pet_class(m, "Pet");
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pet_class.def(py::init<std::string, std::string>())
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.def("name", &Pet::name)
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.def("species", &Pet::species);
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/* One way of declaring a subclass relationship: reference parent's class_ object */
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py::class_<Dog>(m, "Dog", pet_class).def(py::init<std::string>());
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/* Another way of declaring a subclass relationship: reference parent's C++ type */
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py::class_<Rabbit, Pet>(m, "Rabbit").def(py::init<std::string>());
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/* And another: list parent in class template arguments */
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py::class_<Hamster, Pet>(m, "Hamster").def(py::init<std::string>());
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/* Constructors are not inherited by default */
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py::class_<Chimera, Pet>(m, "Chimera");
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m.def("pet_name_species",
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[](const Pet &pet) { return pet.name() + " is a " + pet.species(); });
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m.def("dog_bark", [](const Dog &dog) { return dog.bark(); });
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// test_automatic_upcasting
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struct BaseClass {
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BaseClass() = default;
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BaseClass(const BaseClass &) = default;
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BaseClass(BaseClass &&) = default;
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virtual ~BaseClass() = default;
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};
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struct DerivedClass1 : BaseClass {};
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struct DerivedClass2 : BaseClass {};
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py::class_<BaseClass>(m, "BaseClass").def(py::init<>());
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py::class_<DerivedClass1>(m, "DerivedClass1").def(py::init<>());
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py::class_<DerivedClass2>(m, "DerivedClass2").def(py::init<>());
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m.def("return_class_1", []() -> BaseClass * { return new DerivedClass1(); });
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m.def("return_class_2", []() -> BaseClass * { return new DerivedClass2(); });
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m.def("return_class_n", [](int n) -> BaseClass * {
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if (n == 1) {
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return new DerivedClass1();
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}
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if (n == 2) {
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return new DerivedClass2();
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}
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return new BaseClass();
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});
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m.def("return_none", []() -> BaseClass * { return nullptr; });
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// test_isinstance
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m.def("check_instances", [](const py::list &l) {
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return py::make_tuple(py::isinstance<py::tuple>(l[0]),
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py::isinstance<py::dict>(l[1]),
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py::isinstance<Pet>(l[2]),
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py::isinstance<Pet>(l[3]),
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py::isinstance<Dog>(l[4]),
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py::isinstance<Rabbit>(l[5]),
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py::isinstance<UnregisteredType>(l[6]));
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});
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struct Invalid {};
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// test_type
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m.def("check_type", [](int category) {
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// Currently not supported (via a fail at compile time)
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// See https://github.com/pybind/pybind11/issues/2486
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// if (category == 2)
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// return py::type::of<int>();
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if (category == 1) {
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return py::type::of<DerivedClass1>();
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}
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return py::type::of<Invalid>();
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});
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m.def("get_type_of", [](py::object ob) { return py::type::of(std::move(ob)); });
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m.def("get_type_classic", [](py::handle h) { return h.get_type(); });
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m.def("as_type", [](const py::object &ob) { return py::type(ob); });
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// test_mismatched_holder
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struct MismatchBase1 {};
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struct MismatchDerived1 : MismatchBase1 {};
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struct MismatchBase2 {};
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struct MismatchDerived2 : MismatchBase2 {};
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m.def("mismatched_holder_1", []() {
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auto mod = py::module_::import("__main__");
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py::class_<MismatchBase1, std::shared_ptr<MismatchBase1>>(mod, "MismatchBase1");
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py::class_<MismatchDerived1, MismatchBase1>(mod, "MismatchDerived1");
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});
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m.def("mismatched_holder_2", []() {
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auto mod = py::module_::import("__main__");
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py::class_<MismatchBase2>(mod, "MismatchBase2");
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py::class_<MismatchDerived2, std::shared_ptr<MismatchDerived2>, MismatchBase2>(
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mod, "MismatchDerived2");
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});
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// test_override_static
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// #511: problem with inheritance + overwritten def_static
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struct MyBase {
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static std::unique_ptr<MyBase> make() { return std::unique_ptr<MyBase>(new MyBase()); }
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};
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struct MyDerived : MyBase {
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static std::unique_ptr<MyDerived> make() {
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return std::unique_ptr<MyDerived>(new MyDerived());
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}
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};
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py::class_<MyBase>(m, "MyBase").def_static("make", &MyBase::make);
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py::class_<MyDerived, MyBase>(m, "MyDerived")
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.def_static("make", &MyDerived::make)
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.def_static("make2", &MyDerived::make);
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// test_implicit_conversion_life_support
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struct ConvertibleFromUserType {
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int i;
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explicit ConvertibleFromUserType(UserType u) : i(u.value()) {}
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};
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py::class_<ConvertibleFromUserType>(m, "AcceptsUserType").def(py::init<UserType>());
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py::implicitly_convertible<UserType, ConvertibleFromUserType>();
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m.def("implicitly_convert_argument", [](const ConvertibleFromUserType &r) { return r.i; });
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m.def("implicitly_convert_variable", [](const py::object &o) {
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// `o` is `UserType` and `r` is a reference to a temporary created by implicit
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// conversion. This is valid when called inside a bound function because the temp
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// object is attached to the same life support system as the arguments.
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const auto &r = o.cast<const ConvertibleFromUserType &>();
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return r.i;
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});
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m.add_object("implicitly_convert_variable_fail", [&] {
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auto f = [](PyObject *, PyObject *args) -> PyObject * {
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auto o = py::reinterpret_borrow<py::tuple>(args)[0];
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try { // It should fail here because there is no life support.
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o.cast<const ConvertibleFromUserType &>();
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} catch (const py::cast_error &e) {
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return py::str(e.what()).release().ptr();
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}
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return py::str().release().ptr();
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};
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auto *def = new PyMethodDef{"f", f, METH_VARARGS, nullptr};
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py::capsule def_capsule(def,
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[](void *ptr) { delete reinterpret_cast<PyMethodDef *>(ptr); });
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return py::reinterpret_steal<py::object>(
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PyCFunction_NewEx(def, def_capsule.ptr(), m.ptr()));
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}());
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// test_operator_new_delete
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struct HasOpNewDel {
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std::uint64_t i;
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static void *operator new(size_t s) {
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py::print("A new", s);
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return ::operator new(s);
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}
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static void *operator new(size_t s, void *ptr) {
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py::print("A placement-new", s);
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return ptr;
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}
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static void operator delete(void *p) {
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py::print("A delete");
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return ::operator delete(p);
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}
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};
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struct HasOpNewDelSize {
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std::uint32_t i;
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static void *operator new(size_t s) {
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py::print("B new", s);
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return ::operator new(s);
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}
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static void *operator new(size_t s, void *ptr) {
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py::print("B placement-new", s);
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return ptr;
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}
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static void operator delete(void *p, size_t s) {
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py::print("B delete", s);
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return ::operator delete(p);
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}
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};
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struct AliasedHasOpNewDelSize {
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std::uint64_t i;
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static void *operator new(size_t s) {
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py::print("C new", s);
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return ::operator new(s);
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}
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static void *operator new(size_t s, void *ptr) {
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py::print("C placement-new", s);
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return ptr;
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}
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static void operator delete(void *p, size_t s) {
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py::print("C delete", s);
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return ::operator delete(p);
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}
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virtual ~AliasedHasOpNewDelSize() = default;
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AliasedHasOpNewDelSize() = default;
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AliasedHasOpNewDelSize(const AliasedHasOpNewDelSize &) = delete;
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};
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struct PyAliasedHasOpNewDelSize : AliasedHasOpNewDelSize {
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PyAliasedHasOpNewDelSize() = default;
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explicit PyAliasedHasOpNewDelSize(int) {}
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std::uint64_t j;
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};
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struct HasOpNewDelBoth {
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std::uint32_t i[8];
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static void *operator new(size_t s) {
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py::print("D new", s);
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return ::operator new(s);
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}
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static void *operator new(size_t s, void *ptr) {
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py::print("D placement-new", s);
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return ptr;
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}
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static void operator delete(void *p) {
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py::print("D delete");
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return ::operator delete(p);
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}
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static void operator delete(void *p, size_t s) {
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py::print("D wrong delete", s);
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return ::operator delete(p);
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}
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};
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py::class_<HasOpNewDel>(m, "HasOpNewDel").def(py::init<>());
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py::class_<HasOpNewDelSize>(m, "HasOpNewDelSize").def(py::init<>());
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py::class_<HasOpNewDelBoth>(m, "HasOpNewDelBoth").def(py::init<>());
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py::class_<AliasedHasOpNewDelSize, PyAliasedHasOpNewDelSize> aliased(m,
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"AliasedHasOpNewDelSize");
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aliased.def(py::init<>());
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aliased.attr("size_noalias") = py::int_(sizeof(AliasedHasOpNewDelSize));
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aliased.attr("size_alias") = py::int_(sizeof(PyAliasedHasOpNewDelSize));
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// This test is actually part of test_local_bindings (test_duplicate_local), but we need a
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// definition in a different compilation unit within the same module:
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bind_local<LocalExternal, 17>(m, "LocalExternal", py::module_local());
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// test_bind_protected_functions
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class ProtectedA {
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protected:
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int foo() const { return value; }
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private:
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int value = 42;
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};
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class PublicistA : public ProtectedA {
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public:
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using ProtectedA::foo;
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};
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py::class_<ProtectedA>(m, "ProtectedA").def(py::init<>()).def("foo", &PublicistA::foo);
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class ProtectedB {
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public:
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virtual ~ProtectedB() = default;
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ProtectedB() = default;
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ProtectedB(const ProtectedB &) = delete;
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protected:
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virtual int foo() const { return value; }
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virtual void *void_foo() { return static_cast<void *>(&value); }
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virtual void *get_self() { return static_cast<void *>(this); }
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private:
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int value = 42;
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};
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class TrampolineB : public ProtectedB {
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public:
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int foo() const override { PYBIND11_OVERRIDE(int, ProtectedB, foo, ); }
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void *void_foo() override { PYBIND11_OVERRIDE(void *, ProtectedB, void_foo, ); }
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void *get_self() override { PYBIND11_OVERRIDE(void *, ProtectedB, get_self, ); }
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};
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class PublicistB : public ProtectedB {
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public:
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// [workaround(intel)] = default does not work here
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// Removing or defaulting this destructor results in linking errors with the Intel compiler
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// (in Debug builds only, tested with icpc (ICC) 2021.1 Beta 20200827)
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~PublicistB() override {}; // NOLINT(modernize-use-equals-default)
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using ProtectedB::foo;
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using ProtectedB::get_self;
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using ProtectedB::void_foo;
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};
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m.def("read_foo", [](const void *original) {
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const int *ptr = reinterpret_cast<const int *>(original);
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return *ptr;
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});
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m.def("pointers_equal",
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[](const void *original, const void *comparison) { return original == comparison; });
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py::class_<ProtectedB, TrampolineB>(m, "ProtectedB")
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.def(py::init<>())
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.def("foo", &PublicistB::foo)
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.def("void_foo", &PublicistB::void_foo)
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.def("get_self", &PublicistB::get_self);
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// test_brace_initialization
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struct BraceInitialization {
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int field1;
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std::string field2;
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};
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py::class_<BraceInitialization>(m, "BraceInitialization")
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.def(py::init<int, const std::string &>())
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.def_readwrite("field1", &BraceInitialization::field1)
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.def_readwrite("field2", &BraceInitialization::field2);
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// We *don't* want to construct using braces when the given constructor argument maps to a
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// constructor, because brace initialization could go to the wrong place (in particular when
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// there is also an `initializer_list<T>`-accept constructor):
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py::class_<NoBraceInitialization>(m, "NoBraceInitialization")
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.def(py::init<std::vector<int>>())
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.def_readonly("vec", &NoBraceInitialization::vec);
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// test_reentrant_implicit_conversion_failure
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// #1035: issue with runaway reentrant implicit conversion
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struct BogusImplicitConversion {
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BogusImplicitConversion(const BogusImplicitConversion &) = default;
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};
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py::class_<BogusImplicitConversion>(m, "BogusImplicitConversion")
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.def(py::init<const BogusImplicitConversion &>());
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py::implicitly_convertible<int, BogusImplicitConversion>();
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// test_qualname
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// #1166: nested class docstring doesn't show nested name
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// Also related: tests that __qualname__ is set properly
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struct NestBase {};
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struct Nested {};
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py::class_<NestBase> base(m, "NestBase");
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base.def(py::init<>());
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py::class_<Nested>(base, "Nested")
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.def(py::init<>())
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.def("fn", [](Nested &, int, NestBase &, Nested &) {})
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.def("fa", [](Nested &, int, NestBase &, Nested &) {}, "a"_a, "b"_a, "c"_a);
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base.def("g", [](NestBase &, Nested &) {});
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base.def("h", []() { return NestBase(); });
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// test_error_after_conversion
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// The second-pass path through dispatcher() previously didn't
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// remember which overload was used, and would crash trying to
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// generate a useful error message
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struct NotRegistered {};
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struct StringWrapper {
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std::string str;
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};
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|
m.def("test_error_after_conversions", [](int) {});
|
|
m.def("test_error_after_conversions",
|
|
[](const StringWrapper &) -> NotRegistered { return {}; });
|
|
py::class_<StringWrapper>(m, "StringWrapper").def(py::init<std::string>());
|
|
py::implicitly_convertible<std::string, StringWrapper>();
|
|
|
|
#if defined(PYBIND11_CPP17)
|
|
struct alignas(1024) Aligned {
|
|
std::uintptr_t ptr() const { return (uintptr_t) this; }
|
|
};
|
|
py::class_<Aligned>(m, "Aligned").def(py::init<>()).def("ptr", &Aligned::ptr);
|
|
#endif
|
|
|
|
// test_final
|
|
struct IsFinal final {};
|
|
py::class_<IsFinal>(m, "IsFinal", py::is_final());
|
|
|
|
// test_non_final_final
|
|
struct IsNonFinalFinal {};
|
|
py::class_<IsNonFinalFinal>(m, "IsNonFinalFinal", py::is_final());
|
|
|
|
// test_exception_rvalue_abort
|
|
struct PyPrintDestructor {
|
|
PyPrintDestructor() = default;
|
|
~PyPrintDestructor() { py::print("Print from destructor"); }
|
|
void throw_something() { throw std::runtime_error("error"); }
|
|
};
|
|
py::class_<PyPrintDestructor>(m, "PyPrintDestructor")
|
|
.def(py::init<>())
|
|
.def("throw_something", &PyPrintDestructor::throw_something);
|
|
|
|
// test_multiple_instances_with_same_pointer
|
|
struct SamePointer {};
|
|
static SamePointer samePointer;
|
|
py::class_<SamePointer, std::unique_ptr<SamePointer, py::nodelete>>(m, "SamePointer")
|
|
.def(py::init([]() { return &samePointer; }));
|
|
|
|
struct Empty {};
|
|
py::class_<Empty>(m, "Empty").def(py::init<>());
|
|
|
|
// test_base_and_derived_nested_scope
|
|
struct BaseWithNested {
|
|
struct Nested {};
|
|
};
|
|
|
|
struct DerivedWithNested : BaseWithNested {
|
|
struct Nested {};
|
|
};
|
|
|
|
py::class_<BaseWithNested> baseWithNested_class(m, "BaseWithNested");
|
|
py::class_<DerivedWithNested, BaseWithNested> derivedWithNested_class(m, "DerivedWithNested");
|
|
py::class_<BaseWithNested::Nested>(baseWithNested_class, "Nested")
|
|
.def_static("get_name", []() { return "BaseWithNested::Nested"; });
|
|
py::class_<DerivedWithNested::Nested>(derivedWithNested_class, "Nested")
|
|
.def_static("get_name", []() { return "DerivedWithNested::Nested"; });
|
|
|
|
// test_register_duplicate_class
|
|
struct Duplicate {};
|
|
struct OtherDuplicate {};
|
|
struct DuplicateNested {};
|
|
struct OtherDuplicateNested {};
|
|
|
|
m.def("register_duplicate_class_name", [](const py::module_ &m) {
|
|
py::class_<Duplicate>(m, "Duplicate");
|
|
py::class_<OtherDuplicate>(m, "Duplicate");
|
|
});
|
|
m.def("register_duplicate_class_type", [](const py::module_ &m) {
|
|
py::class_<OtherDuplicate>(m, "OtherDuplicate");
|
|
py::class_<OtherDuplicate>(m, "YetAnotherDuplicate");
|
|
});
|
|
m.def("register_duplicate_nested_class_name", [](const py::object >) {
|
|
py::class_<DuplicateNested>(gt, "DuplicateNested");
|
|
py::class_<OtherDuplicateNested>(gt, "DuplicateNested");
|
|
});
|
|
m.def("register_duplicate_nested_class_type", [](const py::object >) {
|
|
py::class_<OtherDuplicateNested>(gt, "OtherDuplicateNested");
|
|
py::class_<OtherDuplicateNested>(gt, "YetAnotherDuplicateNested");
|
|
});
|
|
|
|
test_class::pr4220_tripped_over_this::bind_empty0(m);
|
|
}
|
|
|
|
template <int N>
|
|
class BreaksBase {
|
|
public:
|
|
virtual ~BreaksBase() = default;
|
|
BreaksBase() = default;
|
|
BreaksBase(const BreaksBase &) = delete;
|
|
};
|
|
template <int N>
|
|
class BreaksTramp : public BreaksBase<N> {};
|
|
// These should all compile just fine:
|
|
using DoesntBreak1 = py::class_<BreaksBase<1>, std::unique_ptr<BreaksBase<1>>, BreaksTramp<1>>;
|
|
using DoesntBreak2 = py::class_<BreaksBase<2>, BreaksTramp<2>, std::unique_ptr<BreaksBase<2>>>;
|
|
using DoesntBreak3 = py::class_<BreaksBase<3>, std::unique_ptr<BreaksBase<3>>>;
|
|
using DoesntBreak4 = py::class_<BreaksBase<4>, BreaksTramp<4>>;
|
|
using DoesntBreak5 = py::class_<BreaksBase<5>>;
|
|
using DoesntBreak6 = py::class_<BreaksBase<6>, std::shared_ptr<BreaksBase<6>>, BreaksTramp<6>>;
|
|
using DoesntBreak7 = py::class_<BreaksBase<7>, BreaksTramp<7>, std::shared_ptr<BreaksBase<7>>>;
|
|
using DoesntBreak8 = py::class_<BreaksBase<8>, std::shared_ptr<BreaksBase<8>>>;
|
|
#define CHECK_BASE(N) \
|
|
static_assert(std::is_same<typename DoesntBreak##N::type, BreaksBase<(N)>>::value, \
|
|
"DoesntBreak" #N " has wrong type!")
|
|
CHECK_BASE(1);
|
|
CHECK_BASE(2);
|
|
CHECK_BASE(3);
|
|
CHECK_BASE(4);
|
|
CHECK_BASE(5);
|
|
CHECK_BASE(6);
|
|
CHECK_BASE(7);
|
|
CHECK_BASE(8);
|
|
#define CHECK_ALIAS(N) \
|
|
static_assert( \
|
|
DoesntBreak##N::has_alias \
|
|
&& std::is_same<typename DoesntBreak##N::type_alias, BreaksTramp<(N)>>::value, \
|
|
"DoesntBreak" #N " has wrong type_alias!")
|
|
#define CHECK_NOALIAS(N) \
|
|
static_assert(!DoesntBreak##N::has_alias \
|
|
&& std::is_void<typename DoesntBreak##N::type_alias>::value, \
|
|
"DoesntBreak" #N " has type alias, but shouldn't!")
|
|
CHECK_ALIAS(1);
|
|
CHECK_ALIAS(2);
|
|
CHECK_NOALIAS(3);
|
|
CHECK_ALIAS(4);
|
|
CHECK_NOALIAS(5);
|
|
CHECK_ALIAS(6);
|
|
CHECK_ALIAS(7);
|
|
CHECK_NOALIAS(8);
|
|
#define CHECK_HOLDER(N, TYPE) \
|
|
static_assert(std::is_same<typename DoesntBreak##N::holder_type, \
|
|
std::TYPE##_ptr<BreaksBase<(N)>>>::value, \
|
|
"DoesntBreak" #N " has wrong holder_type!")
|
|
#define CHECK_SMART_HOLDER(N) \
|
|
static_assert(std::is_same<typename DoesntBreak##N::holder_type, \
|
|
pybindit::memory::smart_holder>::value, \
|
|
"DoesntBreak" #N " has wrong holder_type!")
|
|
CHECK_HOLDER(1, unique);
|
|
CHECK_HOLDER(2, unique);
|
|
CHECK_HOLDER(3, unique);
|
|
CHECK_SMART_HOLDER(4);
|
|
CHECK_SMART_HOLDER(5);
|
|
CHECK_HOLDER(6, shared);
|
|
CHECK_HOLDER(7, shared);
|
|
CHECK_HOLDER(8, shared);
|
|
|
|
// There's no nice way to test that these fail because they fail to compile; leave them here,
|
|
// though, so that they can be manually tested by uncommenting them (and seeing that compilation
|
|
// failures occurs).
|
|
|
|
// We have to actually look into the type: the typedef alone isn't enough to instantiate the type:
|
|
#define CHECK_BROKEN(N) \
|
|
static_assert(std::is_same<typename Breaks##N::type, BreaksBase<-(N)>>::value, \
|
|
"Breaks1 has wrong type!");
|
|
|
|
#ifdef PYBIND11_NEVER_DEFINED_EVER
|
|
// Two holder classes:
|
|
typedef py::
|
|
class_<BreaksBase<-1>, std::unique_ptr<BreaksBase<-1>>, std::unique_ptr<BreaksBase<-1>>>
|
|
Breaks1;
|
|
CHECK_BROKEN(1);
|
|
// Two aliases:
|
|
typedef py::class_<BreaksBase<-2>, BreaksTramp<-2>, BreaksTramp<-2>> Breaks2;
|
|
CHECK_BROKEN(2);
|
|
// Holder + 2 aliases
|
|
typedef py::
|
|
class_<BreaksBase<-3>, std::unique_ptr<BreaksBase<-3>>, BreaksTramp<-3>, BreaksTramp<-3>>
|
|
Breaks3;
|
|
CHECK_BROKEN(3);
|
|
// Alias + 2 holders
|
|
typedef py::class_<BreaksBase<-4>,
|
|
std::unique_ptr<BreaksBase<-4>>,
|
|
BreaksTramp<-4>,
|
|
std::shared_ptr<BreaksBase<-4>>>
|
|
Breaks4;
|
|
CHECK_BROKEN(4);
|
|
// Invalid option (not a subclass or holder)
|
|
typedef py::class_<BreaksBase<-5>, BreaksTramp<-4>> Breaks5;
|
|
CHECK_BROKEN(5);
|
|
// Invalid option: multiple inheritance not supported:
|
|
template <>
|
|
struct BreaksBase<-8> : BreaksBase<-6>, BreaksBase<-7> {};
|
|
typedef py::class_<BreaksBase<-8>, BreaksBase<-6>, BreaksBase<-7>> Breaks8;
|
|
CHECK_BROKEN(8);
|
|
#endif
|