From 444e535f000fd7b53dadf6726d5cd29ac34cc75f Mon Sep 17 00:00:00 2001 From: Miodrag Milanovic Date: Thu, 23 Jul 2020 08:58:19 +0200 Subject: Add pybind11 2.5 source --- .../pybind11/tests/test_multiple_inheritance.cpp | 220 +++++++++++++++++++++ 1 file changed, 220 insertions(+) create mode 100644 3rdparty/pybind11/tests/test_multiple_inheritance.cpp (limited to '3rdparty/pybind11/tests/test_multiple_inheritance.cpp') diff --git a/3rdparty/pybind11/tests/test_multiple_inheritance.cpp b/3rdparty/pybind11/tests/test_multiple_inheritance.cpp new file mode 100644 index 00000000..ba1674fb --- /dev/null +++ b/3rdparty/pybind11/tests/test_multiple_inheritance.cpp @@ -0,0 +1,220 @@ +/* + tests/test_multiple_inheritance.cpp -- multiple inheritance, + implicit MI casts + + Copyright (c) 2016 Wenzel Jakob + + All rights reserved. Use of this source code is governed by a + BSD-style license that can be found in the LICENSE file. +*/ + +#include "pybind11_tests.h" +#include "constructor_stats.h" + +// Many bases for testing that multiple inheritance from many classes (i.e. requiring extra +// space for holder constructed flags) works. +template struct BaseN { + BaseN(int i) : i(i) { } + int i; +}; + +// test_mi_static_properties +struct Vanilla { + std::string vanilla() { return "Vanilla"; }; +}; +struct WithStatic1 { + static std::string static_func1() { return "WithStatic1"; }; + static int static_value1; +}; +struct WithStatic2 { + static std::string static_func2() { return "WithStatic2"; }; + static int static_value2; +}; +struct VanillaStaticMix1 : Vanilla, WithStatic1, WithStatic2 { + static std::string static_func() { return "VanillaStaticMix1"; } + static int static_value; +}; +struct VanillaStaticMix2 : WithStatic1, Vanilla, WithStatic2 { + static std::string static_func() { return "VanillaStaticMix2"; } + static int static_value; +}; +int WithStatic1::static_value1 = 1; +int WithStatic2::static_value2 = 2; +int VanillaStaticMix1::static_value = 12; +int VanillaStaticMix2::static_value = 12; + +TEST_SUBMODULE(multiple_inheritance, m) { + + // test_multiple_inheritance_mix1 + // test_multiple_inheritance_mix2 + struct Base1 { + Base1(int i) : i(i) { } + int foo() { return i; } + int i; + }; + py::class_ b1(m, "Base1"); + b1.def(py::init()) + .def("foo", &Base1::foo); + + struct Base2 { + Base2(int i) : i(i) { } + int bar() { return i; } + int i; + }; + py::class_ b2(m, "Base2"); + b2.def(py::init()) + .def("bar", &Base2::bar); + + + // test_multiple_inheritance_cpp + struct Base12 : Base1, Base2 { + Base12(int i, int j) : Base1(i), Base2(j) { } + }; + struct MIType : Base12 { + MIType(int i, int j) : Base12(i, j) { } + }; + py::class_(m, "Base12"); + py::class_(m, "MIType") + .def(py::init()); + + + // test_multiple_inheritance_python_many_bases + #define PYBIND11_BASEN(N) py::class_>(m, "BaseN" #N).def(py::init()).def("f" #N, [](BaseN &b) { return b.i + N; }) + PYBIND11_BASEN( 1); PYBIND11_BASEN( 2); PYBIND11_BASEN( 3); PYBIND11_BASEN( 4); + PYBIND11_BASEN( 5); PYBIND11_BASEN( 6); PYBIND11_BASEN( 7); PYBIND11_BASEN( 8); + PYBIND11_BASEN( 9); PYBIND11_BASEN(10); PYBIND11_BASEN(11); PYBIND11_BASEN(12); + PYBIND11_BASEN(13); PYBIND11_BASEN(14); PYBIND11_BASEN(15); PYBIND11_BASEN(16); + PYBIND11_BASEN(17); + + // Uncommenting this should result in a compile time failure (MI can only be specified via + // template parameters because pybind has to know the types involved; see discussion in #742 for + // details). +// struct Base12v2 : Base1, Base2 { +// Base12v2(int i, int j) : Base1(i), Base2(j) { } +// }; +// py::class_(m, "Base12v2", b1, b2) +// .def(py::init()); + + + // test_multiple_inheritance_virtbase + // Test the case where not all base classes are specified, and where pybind11 requires the + // py::multiple_inheritance flag to perform proper casting between types. + struct Base1a { + Base1a(int i) : i(i) { } + int foo() { return i; } + int i; + }; + py::class_>(m, "Base1a") + .def(py::init()) + .def("foo", &Base1a::foo); + + struct Base2a { + Base2a(int i) : i(i) { } + int bar() { return i; } + int i; + }; + py::class_>(m, "Base2a") + .def(py::init()) + .def("bar", &Base2a::bar); + + struct Base12a : Base1a, Base2a { + Base12a(int i, int j) : Base1a(i), Base2a(j) { } + }; + py::class_>(m, "Base12a", py::multiple_inheritance()) + .def(py::init()); + + m.def("bar_base2a", [](Base2a *b) { return b->bar(); }); + m.def("bar_base2a_sharedptr", [](std::shared_ptr b) { return b->bar(); }); + + // test_mi_unaligned_base + // test_mi_base_return + // Issue #801: invalid casting to derived type with MI bases + struct I801B1 { int a = 1; I801B1() = default; I801B1(const I801B1 &) = default; virtual ~I801B1() = default; }; + struct I801B2 { int b = 2; I801B2() = default; I801B2(const I801B2 &) = default; virtual ~I801B2() = default; }; + struct I801C : I801B1, I801B2 {}; + struct I801D : I801C {}; // Indirect MI + // Unregistered classes: + struct I801B3 { int c = 3; virtual ~I801B3() = default; }; + struct I801E : I801B3, I801D {}; + + py::class_>(m, "I801B1").def(py::init<>()).def_readonly("a", &I801B1::a); + py::class_>(m, "I801B2").def(py::init<>()).def_readonly("b", &I801B2::b); + py::class_>(m, "I801C").def(py::init<>()); + py::class_>(m, "I801D").def(py::init<>()); + + // Two separate issues here: first, we want to recognize a pointer to a base type as being a + // known instance even when the pointer value is unequal (i.e. due to a non-first + // multiple-inheritance base class): + m.def("i801b1_c", [](I801C *c) { return static_cast(c); }); + m.def("i801b2_c", [](I801C *c) { return static_cast(c); }); + m.def("i801b1_d", [](I801D *d) { return static_cast(d); }); + m.def("i801b2_d", [](I801D *d) { return static_cast(d); }); + + // Second, when returned a base class pointer to a derived instance, we cannot assume that the + // pointer is `reinterpret_cast`able to the derived pointer because, like above, the base class + // pointer could be offset. + m.def("i801c_b1", []() -> I801B1 * { return new I801C(); }); + m.def("i801c_b2", []() -> I801B2 * { return new I801C(); }); + m.def("i801d_b1", []() -> I801B1 * { return new I801D(); }); + m.def("i801d_b2", []() -> I801B2 * { return new I801D(); }); + + // Return a base class pointer to a pybind-registered type when the actual derived type + // isn't pybind-registered (and uses multiple-inheritance to offset the pybind base) + m.def("i801e_c", []() -> I801C * { return new I801E(); }); + m.def("i801e_b2", []() -> I801B2 * { return new I801E(); }); + + + // test_mi_static_properties + py::class_(m, "Vanilla") + .def(py::init<>()) + .def("vanilla", &Vanilla::vanilla); + + py::class_(m, "WithStatic1") + .def(py::init<>()) + .def_static("static_func1", &WithStatic1::static_func1) + .def_readwrite_static("static_value1", &WithStatic1::static_value1); + + py::class_(m, "WithStatic2") + .def(py::init<>()) + .def_static("static_func2", &WithStatic2::static_func2) + .def_readwrite_static("static_value2", &WithStatic2::static_value2); + + py::class_( + m, "VanillaStaticMix1") + .def(py::init<>()) + .def_static("static_func", &VanillaStaticMix1::static_func) + .def_readwrite_static("static_value", &VanillaStaticMix1::static_value); + + py::class_( + m, "VanillaStaticMix2") + .def(py::init<>()) + .def_static("static_func", &VanillaStaticMix2::static_func) + .def_readwrite_static("static_value", &VanillaStaticMix2::static_value); + + +#if !defined(PYPY_VERSION) + struct WithDict { }; + struct VanillaDictMix1 : Vanilla, WithDict { }; + struct VanillaDictMix2 : WithDict, Vanilla { }; + py::class_(m, "WithDict", py::dynamic_attr()).def(py::init<>()); + py::class_(m, "VanillaDictMix1").def(py::init<>()); + py::class_(m, "VanillaDictMix2").def(py::init<>()); +#endif + + // test_diamond_inheritance + // Issue #959: segfault when constructing diamond inheritance instance + // All of these have int members so that there will be various unequal pointers involved. + struct B { int b; B() = default; B(const B&) = default; virtual ~B() = default; }; + struct C0 : public virtual B { int c0; }; + struct C1 : public virtual B { int c1; }; + struct D : public C0, public C1 { int d; }; + py::class_(m, "B") + .def("b", [](B *self) { return self; }); + py::class_(m, "C0") + .def("c0", [](C0 *self) { return self; }); + py::class_(m, "C1") + .def("c1", [](C1 *self) { return self; }); + py::class_(m, "D") + .def(py::init<>()); +} -- cgit v1.2.3