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Lua: Use full userdata to store class binds

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This commit is contained in:
Ilari Liusvaara 2013-08-21 23:32:48 +03:00
parent 9092dea931
commit e7472118a5
4 changed files with 12 additions and 18 deletions
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18
include/library/luabase.hpp
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@ -624,7 +624,7 @@ template<class T> struct lua_class_bind_data
/**
* The name of the method to pass.
*/
std::string fname;
char fname[];
};
template<class T> class lua_class;
@ -734,22 +734,16 @@ public:
* Parameter fn: The method to call.
* Parameter force: If true, overwrite existing method.
*/
void bind(lua_state& state, const char* keyname, int (T::*fn)(lua_state& LS), bool force = false)
void bind(lua_state& state, const char* keyname, int (T::*fn)(lua_state& LS))
{
load_metatable(state);
state.pushstring(keyname);
state.rawget(-2);
if(!state.isnil(-1) && !force) {
state.pop(2);
return;
}
state.pop(1);
lua_class_bind_data<T>* bdata = new lua_class_bind_data<T>;
std::string fname = std::string("Method ") + keyname;
void* ptr = state.newuserdata(sizeof(lua_class_bind_data<T>) + fname.length() + 1);
lua_class_bind_data<T>* bdata = reinterpret_cast<lua_class_bind_data<T>*>(ptr);
bdata->fn = fn;
bdata->fname = std::string("Method ") + keyname;
bdata->state = &state.get_master();
state.pushstring(keyname);
state.pushlightuserdata(bdata);
std::copy(fname.begin(), fname.end(), bdata->fname);
state.pushcclosure(class_bind_trampoline, 1);
state.rawset(-3);
state.pop(1);

4
src/lua/callback.cpp
View file

@ -34,8 +34,8 @@ namespace
{
static char doonce_key;
if(L.do_once(&doonce_key)) {
objclass<lua_callbacks_list>().bind(L, "__index", &lua_callbacks_list::index, true);
objclass<lua_callbacks_list>().bind(L, "__newindex", &lua_callbacks_list::newindex, true);
objclass<lua_callbacks_list>().bind(L, "__index", &lua_callbacks_list::index);
objclass<lua_callbacks_list>().bind(L, "__newindex", &lua_callbacks_list::newindex);
}
}

4
src/lua/memory.cpp
View file

@ -476,8 +476,8 @@ lua_mmap_struct::lua_mmap_struct(lua_state& L)
{
static char done_key;
if(L.do_once(&done_key)) {
objclass<lua_mmap_struct>().bind(L, "__index", &lua_mmap_struct::index, true);
objclass<lua_mmap_struct>().bind(L, "__newindex", &lua_mmap_struct::newindex, true);
objclass<lua_mmap_struct>().bind(L, "__index", &lua_mmap_struct::index);
objclass<lua_mmap_struct>().bind(L, "__newindex", &lua_mmap_struct::newindex);
objclass<lua_mmap_struct>().bind(L, "__call", &lua_mmap_struct::map);
}
}

4
src/lua/memory2.cpp
View file

@ -138,8 +138,8 @@ namespace
{
static char doonce_key;
if(L.do_once(&doonce_key)) {
objclass<lua_vma_list>().bind(L, "__index", &lua_vma_list::index, true);
objclass<lua_vma_list>().bind(L, "__newindex", &lua_vma_list::newindex, true);
objclass<lua_vma_list>().bind(L, "__index", &lua_vma_list::index);
objclass<lua_vma_list>().bind(L, "__newindex", &lua_vma_list::newindex);
objclass<lua_vma_list>().bind(L, "__call", &lua_vma_list::call);
}
}