Merge pull request #477 from YosysHQ/pybind11

Move to pybind11

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