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add a wrapper function to work around binding a function with default parameters against LuaBind

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This commit is contained in:
Dennis Luxen 2014-08-27 16:28:03 +02:00
parent 18f8ce69cd
commit f9e780ed67
1 changed files with 11 additions and 5 deletions
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16
Extractor/ScriptingEnvironment.cpp
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@ -42,7 +42,13 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <sstream>
ScriptingEnvironment::ScriptingEnvironment() {}
// wrapper method as luabind doesn't automatically overload funcs w/ default parameters
template<class T>
auto get_value_by_key(T const& object, const char *key) -> decltype(object.get_value_by_key(key))
{
return object.get_value_by_key(key);
}
ScriptingEnvironment::ScriptingEnvironment(const char *file_name)
: file_name(file_name)
{
@ -51,8 +57,6 @@ ScriptingEnvironment::ScriptingEnvironment(const char *file_name)
void ScriptingEnvironment::initLuaState(lua_State* lua_state)
{
using namespace osmium;
typedef double (osmium::Location::* location_member_ptr_type)() const;
luabind::open(lua_state);
@ -76,7 +80,8 @@ void ScriptingEnvironment::initLuaState(lua_State* lua_state)
luabind::class_<osmium::Node>("Node")
// .def<node_member_ptr_type>("tags", &osmium::Node::tags)
.def("get_value_by_key", &osmium::Node::get_value_by_key),
.def("get_value_by_key", &osmium::Node::get_value_by_key)
.def("get_value_by_key", &get_value_by_key<osmium::Node>),
luabind::class_<ExtractionNode>("ResultNode")
.def_readwrite("traffic_lights", &ExtractionNode::traffic_lights)
@ -84,7 +89,7 @@ void ScriptingEnvironment::initLuaState(lua_State* lua_state)
luabind::class_<ExtractionWay>("ResultWay")
// .def(luabind::constructor<>())
.def_readwrite("speed", &ExtractionWay::forward_speed)
.def_readwrite("forward_speed", &ExtractionWay::forward_speed)
.def_readwrite("backward_speed", &ExtractionWay::backward_speed)
.def_readwrite("name", &ExtractionWay::name)
.def_readwrite("roundabout", &ExtractionWay::roundabout)
@ -101,6 +106,7 @@ void ScriptingEnvironment::initLuaState(lua_State* lua_state)
],
luabind::class_<osmium::Way>("Way")
.def("get_value_by_key", &osmium::Way::get_value_by_key)
.def("get_value_by_key", &get_value_by_key<osmium::Way>)
];
if (0 != luaL_dofile(lua_state, file_name.c_str()))