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author | Miodrag Milanovic <mmicko@gmail.com> | 2020-07-23 08:58:19 +0200 |
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committer | Miodrag Milanovic <mmicko@gmail.com> | 2020-07-23 08:58:19 +0200 |
commit | 444e535f000fd7b53dadf6726d5cd29ac34cc75f (patch) | |
tree | 1ac675d8f0381de320849294fa70c946f631e7f6 /3rdparty/pybind11/tests/test_operator_overloading.cpp | |
parent | e6991ad5dc79f6118838f091cc05f10d3377eb4a (diff) | |
download | nextpnr-444e535f000fd7b53dadf6726d5cd29ac34cc75f.tar.gz nextpnr-444e535f000fd7b53dadf6726d5cd29ac34cc75f.tar.bz2 nextpnr-444e535f000fd7b53dadf6726d5cd29ac34cc75f.zip |
Add pybind11 2.5 source
Diffstat (limited to '3rdparty/pybind11/tests/test_operator_overloading.cpp')
-rw-r--r-- | 3rdparty/pybind11/tests/test_operator_overloading.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/3rdparty/pybind11/tests/test_operator_overloading.cpp b/3rdparty/pybind11/tests/test_operator_overloading.cpp new file mode 100644 index 00000000..7b111704 --- /dev/null +++ b/3rdparty/pybind11/tests/test_operator_overloading.cpp @@ -0,0 +1,171 @@ +/* + tests/test_operator_overloading.cpp -- operator overloading + + Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch> + + 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" +#include <pybind11/operators.h> +#include <functional> + +class Vector2 { +public: + Vector2(float x, float y) : x(x), y(y) { print_created(this, toString()); } + Vector2(const Vector2 &v) : x(v.x), y(v.y) { print_copy_created(this); } + Vector2(Vector2 &&v) : x(v.x), y(v.y) { print_move_created(this); v.x = v.y = 0; } + Vector2 &operator=(const Vector2 &v) { x = v.x; y = v.y; print_copy_assigned(this); return *this; } + Vector2 &operator=(Vector2 &&v) { x = v.x; y = v.y; v.x = v.y = 0; print_move_assigned(this); return *this; } + ~Vector2() { print_destroyed(this); } + + std::string toString() const { return "[" + std::to_string(x) + ", " + std::to_string(y) + "]"; } + + Vector2 operator-() const { return Vector2(-x, -y); } + Vector2 operator+(const Vector2 &v) const { return Vector2(x + v.x, y + v.y); } + Vector2 operator-(const Vector2 &v) const { return Vector2(x - v.x, y - v.y); } + Vector2 operator-(float value) const { return Vector2(x - value, y - value); } + Vector2 operator+(float value) const { return Vector2(x + value, y + value); } + Vector2 operator*(float value) const { return Vector2(x * value, y * value); } + Vector2 operator/(float value) const { return Vector2(x / value, y / value); } + Vector2 operator*(const Vector2 &v) const { return Vector2(x * v.x, y * v.y); } + Vector2 operator/(const Vector2 &v) const { return Vector2(x / v.x, y / v.y); } + Vector2& operator+=(const Vector2 &v) { x += v.x; y += v.y; return *this; } + Vector2& operator-=(const Vector2 &v) { x -= v.x; y -= v.y; return *this; } + Vector2& operator*=(float v) { x *= v; y *= v; return *this; } + Vector2& operator/=(float v) { x /= v; y /= v; return *this; } + Vector2& operator*=(const Vector2 &v) { x *= v.x; y *= v.y; return *this; } + Vector2& operator/=(const Vector2 &v) { x /= v.x; y /= v.y; return *this; } + + friend Vector2 operator+(float f, const Vector2 &v) { return Vector2(f + v.x, f + v.y); } + friend Vector2 operator-(float f, const Vector2 &v) { return Vector2(f - v.x, f - v.y); } + friend Vector2 operator*(float f, const Vector2 &v) { return Vector2(f * v.x, f * v.y); } + friend Vector2 operator/(float f, const Vector2 &v) { return Vector2(f / v.x, f / v.y); } +private: + float x, y; +}; + +class C1 { }; +class C2 { }; + +int operator+(const C1 &, const C1 &) { return 11; } +int operator+(const C2 &, const C2 &) { return 22; } +int operator+(const C2 &, const C1 &) { return 21; } +int operator+(const C1 &, const C2 &) { return 12; } + +namespace std { + template<> + struct hash<Vector2> { + // Not a good hash function, but easy to test + size_t operator()(const Vector2 &) { return 4; } + }; +} + +// MSVC warns about unknown pragmas, and warnings are errors. +#ifndef _MSC_VER + #pragma GCC diagnostic push + // clang 7.0.0 and Apple LLVM 10.0.1 introduce `-Wself-assign-overloaded` to + // `-Wall`, which is used here for overloading (e.g. `py::self += py::self `). + // Here, we suppress the warning using `#pragma diagnostic`. + // Taken from: https://github.com/RobotLocomotion/drake/commit/aaf84b46 + // TODO(eric): This could be resolved using a function / functor (e.g. `py::self()`). + #if (__APPLE__) && (__clang__) + #if (__clang_major__ >= 10) && (__clang_minor__ >= 0) && (__clang_patchlevel__ >= 1) + #pragma GCC diagnostic ignored "-Wself-assign-overloaded" + #endif + #elif (__clang__) + #if (__clang_major__ >= 7) + #pragma GCC diagnostic ignored "-Wself-assign-overloaded" + #endif + #endif +#endif + +TEST_SUBMODULE(operators, m) { + + // test_operator_overloading + py::class_<Vector2>(m, "Vector2") + .def(py::init<float, float>()) + .def(py::self + py::self) + .def(py::self + float()) + .def(py::self - py::self) + .def(py::self - float()) + .def(py::self * float()) + .def(py::self / float()) + .def(py::self * py::self) + .def(py::self / py::self) + .def(py::self += py::self) + .def(py::self -= py::self) + .def(py::self *= float()) + .def(py::self /= float()) + .def(py::self *= py::self) + .def(py::self /= py::self) + .def(float() + py::self) + .def(float() - py::self) + .def(float() * py::self) + .def(float() / py::self) + .def(-py::self) + .def("__str__", &Vector2::toString) + .def(hash(py::self)) + ; + + m.attr("Vector") = m.attr("Vector2"); + + // test_operators_notimplemented + // #393: need to return NotSupported to ensure correct arithmetic operator behavior + py::class_<C1>(m, "C1") + .def(py::init<>()) + .def(py::self + py::self); + + py::class_<C2>(m, "C2") + .def(py::init<>()) + .def(py::self + py::self) + .def("__add__", [](const C2& c2, const C1& c1) { return c2 + c1; }) + .def("__radd__", [](const C2& c2, const C1& c1) { return c1 + c2; }); + + // test_nested + // #328: first member in a class can't be used in operators + struct NestABase { int value = -2; }; + py::class_<NestABase>(m, "NestABase") + .def(py::init<>()) + .def_readwrite("value", &NestABase::value); + + struct NestA : NestABase { + int value = 3; + NestA& operator+=(int i) { value += i; return *this; } + }; + py::class_<NestA>(m, "NestA") + .def(py::init<>()) + .def(py::self += int()) + .def("as_base", [](NestA &a) -> NestABase& { + return (NestABase&) a; + }, py::return_value_policy::reference_internal); + m.def("get_NestA", [](const NestA &a) { return a.value; }); + + struct NestB { + NestA a; + int value = 4; + NestB& operator-=(int i) { value -= i; return *this; } + }; + py::class_<NestB>(m, "NestB") + .def(py::init<>()) + .def(py::self -= int()) + .def_readwrite("a", &NestB::a); + m.def("get_NestB", [](const NestB &b) { return b.value; }); + + struct NestC { + NestB b; + int value = 5; + NestC& operator*=(int i) { value *= i; return *this; } + }; + py::class_<NestC>(m, "NestC") + .def(py::init<>()) + .def(py::self *= int()) + .def_readwrite("b", &NestC::b); + m.def("get_NestC", [](const NestC &c) { return c.value; }); +} + +#ifndef _MSC_VER + #pragma GCC diagnostic pop +#endif |