summaryrefslogtreecommitdiffstats
path: root/src/boost/libs/python/test/pytype_function.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/python/test/pytype_function.cpp
parentInitial commit. (diff)
downloadceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz
ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/python/test/pytype_function.cpp')
-rw-r--r--src/boost/libs/python/test/pytype_function.cpp85
1 files changed, 85 insertions, 0 deletions
diff --git a/src/boost/libs/python/test/pytype_function.cpp b/src/boost/libs/python/test/pytype_function.cpp
new file mode 100644
index 000000000..46cce19e6
--- /dev/null
+++ b/src/boost/libs/python/test/pytype_function.cpp
@@ -0,0 +1,85 @@
+// Copyright Joel de Guzman 2004. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/python/module.hpp>
+#include <boost/python/def.hpp>
+#include <boost/python/extract.hpp>
+#include <boost/python/to_python_converter.hpp>
+#include <boost/python/class.hpp>
+
+using namespace boost::python;
+
+struct A
+{
+};
+
+struct B
+{
+ A a;
+ B(const A& a_):a(a_){}
+};
+
+// Converter from A to python int
+struct BToPython
+#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
+ : converter::to_python_target_type<A> //inherits get_pytype
+#endif
+{
+ static PyObject* convert(const B& b)
+ {
+ return boost::python::incref(boost::python::object(b.a).ptr());
+ }
+};
+
+// Conversion from python int to A
+struct BFromPython
+{
+ BFromPython()
+ {
+ boost::python::converter::registry::push_back(
+ &convertible,
+ &construct,
+ boost::python::type_id< B >()
+#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
+ , &converter::expected_from_python_type<A>::get_pytype//convertible to A can be converted to B
+#endif
+ );
+ }
+
+ static void* convertible(PyObject* obj_ptr)
+ {
+ extract<const A&> ex(obj_ptr);
+ if (!ex.check()) return 0;
+ return obj_ptr;
+ }
+
+ static void construct(
+ PyObject* obj_ptr,
+ boost::python::converter::rvalue_from_python_stage1_data* data)
+ {
+ void* storage = (
+ (boost::python::converter::rvalue_from_python_storage< B >*)data)-> storage.bytes;
+
+ extract<const A&> ex(obj_ptr);
+ new (storage) B(ex());
+ data->convertible = storage;
+ }
+};
+
+
+B func(const B& b) { return b ; }
+
+
+BOOST_PYTHON_MODULE(pytype_function_ext)
+{
+ to_python_converter< B , BToPython,true >(); //has get_pytype
+ BFromPython();
+
+ class_<A>("A") ;
+
+ def("func", &func);
+
+}
+
+#include "module_tail.cpp"