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opaque<> clarifications

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Wenzel Jakob
2016-04-22 16:52:15 +02:00
parent 5a2924275c
commit 0871228f42
4 changed files with 78 additions and 14 deletions
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24
example/example14.cpp
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@@ -13,6 +13,11 @@
typedef std::vector<std::string> StringList;
class ClassWithSTLVecProperty {
public:
StringList stringList;
};
void init_ex14(py::module &m) {
py::class_<py::opaque<StringList>>(m, "StringList")
.def(py::init<>())
@@ -20,11 +25,24 @@ void init_ex14(py::module &m) {
.def("pop_back", [](py::opaque<StringList> &l) { l->pop_back(); })
.def("back", [](py::opaque<StringList> &l) { return l->back(); });
py::class_<ClassWithSTLVecProperty>(m, "ClassWithSTLVecProperty")
.def(py::init<>())
/* Need to cast properties to opaque types to avoid pybind11-internal
STL conversion code from becoming active */
.def_readwrite("stringList", (py::opaque<StringList> ClassWithSTLVecProperty:: *)
&ClassWithSTLVecProperty::stringList);
m.def("print_opaque_list", [](py::opaque<StringList> &_l) {
StringList &l = _l;
std::cout << "Opaque list: " << std::endl;
for (auto entry : l)
std::cout << " " << entry << std::endl;
std::cout << "Opaque list: [";
bool first = true;
for (auto entry : l) {
if (!first)
std::cout << ", ";
std::cout << entry;
first = false;
}
std::cout << "]" << std::endl;
});
m.def("return_void_ptr", []() { return (void *) 1234; });