support for opaque types

example/example14.cpp

@@ -0,0 +1,29 @@
+/*
+    example/example14.cpp -- opaque types
+
+    Copyright (c) 2015 Wenzel Jakob <wenzel@inf.ethz.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 "example.h"
+#include <pybind11/stl.h>
+#include <vector>
+
+typedef std::vector<std::string> StringList;
+
+void init_ex14(py::module &m) {
+    py::class_<py::opaque<StringList>>(m, "StringList")
+        .def(py::init<>())
+        .def("push_back", [](py::opaque<StringList> &l, const std::string &str) { l->push_back(str); })
+        .def("pop_back", [](py::opaque<StringList> &l) { l->pop_back(); })
+        .def("back", [](py::opaque<StringList> &l) { return l->back(); });
+
+    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; 
+    });
+}