mirror of
https://github.com/pybind/pybind11.git
synced 2024-11-25 22:52:01 +00:00
1aa8dd1745
In def_readonly and def_readwrite, there is an assertion that the member comes
from the class or a base class:
static_assert(std::is_base_of<C, type>::value, "...");
However, if C and type are the same type, is_base_of will still only be true
if they are the same _non-union_ type. This means we can't define accessors
for the members of a union type because of this assertion.
Update the assertion to test
std::is_same<C, type>::value || std::is_base_of<C, type>::value
which will allow union types, or members of base classes.
Also add a basic unit test for accessing unions.
23 lines
603 B
C++
23 lines
603 B
C++
/*
|
|
tests/test_class.cpp -- test py::class_ definitions and basic functionality
|
|
|
|
Copyright (c) 2019 Roland Dreier <roland.dreier@gmail.com>
|
|
|
|
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"
|
|
|
|
TEST_SUBMODULE(union_, m) {
|
|
union TestUnion {
|
|
int value_int;
|
|
unsigned value_uint;
|
|
};
|
|
|
|
py::class_<TestUnion>(m, "TestUnion")
|
|
.def(py::init<>())
|
|
.def_readonly("as_int", &TestUnion::value_int)
|
|
.def_readwrite("as_uint", &TestUnion::value_uint);
|
|
}
|