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Shuffling code in test_multiple_inheritance.cpp to separate struct/class definitions from bindings code. (#2890)
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@ -11,6 +11,8 @@
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#include "pybind11_tests.h"
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#include "constructor_stats.h"
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namespace {
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// Many bases for testing that multiple inheritance from many classes (i.e. requiring extra
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// space for holder constructed flags) works.
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template <int N> struct BaseN {
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@ -43,7 +45,34 @@ int WithStatic2::static_value2 = 2;
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int VanillaStaticMix1::static_value = 12;
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int VanillaStaticMix2::static_value = 12;
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// test_multiple_inheritance_virtbase
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struct Base1a {
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Base1a(int i) : i(i) { }
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int foo() { return i; }
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int i;
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};
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struct Base2a {
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Base2a(int i) : i(i) { }
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int bar() { return i; }
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int i;
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};
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struct Base12a : Base1a, Base2a {
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Base12a(int i, int j) : Base1a(i), Base2a(j) { }
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};
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// test_mi_unaligned_base
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// test_mi_base_return
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struct I801B1 { int a = 1; I801B1() = default; I801B1(const I801B1 &) = default; virtual ~I801B1() = default; };
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struct I801B2 { int b = 2; I801B2() = default; I801B2(const I801B2 &) = default; virtual ~I801B2() = default; };
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struct I801C : I801B1, I801B2 {};
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struct I801D : I801C {}; // Indirect MI
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} // namespace
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TEST_SUBMODULE(multiple_inheritance, m) {
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// Please do not interleave `struct` and `class` definitions with bindings code,
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// but implement `struct`s and `class`es in the anonymous namespace above.
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// This helps keeping the smart_holder branch in sync with master.
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// test_multiple_inheritance_mix1
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// test_multiple_inheritance_mix2
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@ -99,27 +128,14 @@ TEST_SUBMODULE(multiple_inheritance, m) {
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// test_multiple_inheritance_virtbase
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// Test the case where not all base classes are specified, and where pybind11 requires the
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// py::multiple_inheritance flag to perform proper casting between types.
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struct Base1a {
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Base1a(int i) : i(i) { }
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int foo() { return i; }
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int i;
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};
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py::class_<Base1a, std::shared_ptr<Base1a>>(m, "Base1a")
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.def(py::init<int>())
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.def("foo", &Base1a::foo);
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struct Base2a {
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Base2a(int i) : i(i) { }
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int bar() { return i; }
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int i;
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};
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py::class_<Base2a, std::shared_ptr<Base2a>>(m, "Base2a")
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.def(py::init<int>())
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.def("bar", &Base2a::bar);
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struct Base12a : Base1a, Base2a {
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Base12a(int i, int j) : Base1a(i), Base2a(j) { }
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};
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py::class_<Base12a, /* Base1 missing */ Base2a,
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std::shared_ptr<Base12a>>(m, "Base12a", py::multiple_inheritance())
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.def(py::init<int, int>());
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@ -130,10 +146,6 @@ TEST_SUBMODULE(multiple_inheritance, m) {
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// test_mi_unaligned_base
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// test_mi_base_return
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// Issue #801: invalid casting to derived type with MI bases
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struct I801B1 { int a = 1; I801B1() = default; I801B1(const I801B1 &) = default; virtual ~I801B1() = default; };
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struct I801B2 { int b = 2; I801B2() = default; I801B2(const I801B2 &) = default; virtual ~I801B2() = default; };
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struct I801C : I801B1, I801B2 {};
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struct I801D : I801C {}; // Indirect MI
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// Unregistered classes:
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struct I801B3 { int c = 3; virtual ~I801B3() = default; };
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struct I801E : I801B3, I801D {};
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