mirror of
https://github.com/EQEmu/Server.git
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144 lines
3.2 KiB
C++
144 lines
3.2 KiB
C++
// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
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// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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// SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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// ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
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// OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef LUABIND_POINTER_CONVERTER_HPP_INCLUDED
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#define LUABIND_POINTER_CONVERTER_HPP_INCLUDED
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#include <type_traits>
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#include <luabind/lua_include.hpp>
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#include <luabind/detail/make_instance.hpp>
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#include <luabind/back_reference.hpp>
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namespace luabind {
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/*
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Todo: Remove code duplication
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*/
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namespace detail {
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struct pointer_converter
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{
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using type = pointer_converter;
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using is_native = std::false_type;
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pointer_converter()
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: result(0)
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{}
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void* result;
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enum { consumed_args = 1 };
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template<class T>
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static void to_lua(lua_State* L, T* ptr)
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{
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if(ptr == 0)
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{
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lua_pushnil(L);
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return;
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}
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if(luabind::get_back_reference(L, ptr))
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return;
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make_pointer_instance(L, ptr);
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}
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template<class T>
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T* to_cpp(lua_State*, by_pointer<T>, int /*index*/)
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{
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return static_cast<T*>(result);
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}
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template<class T>
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int match(lua_State* L, by_pointer<T>, int index)
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{
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if(lua_isnil(L, index)) return 0;
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object_rep* obj = get_instance(L, index);
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if(obj == 0) return no_match;
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if(obj->is_const())
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return no_match;
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std::pair<void*, int> s = obj->get_instance(registered_class<T>::id);
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result = s.first;
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return s.second;
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}
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template<class T>
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void converter_postcall(lua_State*, by_pointer<T>, int /*index*/)
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{}
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};
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struct const_pointer_converter
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{
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using type = const_pointer_converter;
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using is_native = std::false_type;
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enum { consumed_args = 1 };
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const_pointer_converter()
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: result(0)
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{}
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void* result;
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template<class T>
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void to_lua(lua_State* L, const T* ptr)
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{
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if(ptr == 0)
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{
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lua_pushnil(L);
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return;
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}
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if(luabind::get_back_reference(L, ptr))
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return;
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make_pointer_instance(L, ptr);
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}
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template<class T>
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T const* to_cpp(lua_State*, by_const_pointer<T>, int)
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{
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return static_cast<T const*>(result);
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}
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template<class T>
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int match(lua_State* L, by_const_pointer<T>, int index)
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{
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if(lua_isnil(L, index)) return 0;
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object_rep* obj = get_instance(L, index);
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if(obj == 0) return no_match; // if the type is not one of our own registered types, classify it as a non-match
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std::pair<void*, int> s = obj->get_instance(registered_class<T>::id);
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if(s.second >= 0 && !obj->is_const())
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s.second += 10;
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result = s.first;
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return s.second;
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}
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template<class T>
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void converter_postcall(lua_State*, T, int) {}
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};
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}
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}
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#endif
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