luau-lang/luau
1
0
Fork 0
mirror of https://github.com/luau-lang/luau.git synced 2025-05-04 10:33:46 +01:00
Code Issues Projects Releases Packages Wiki Activity

Add typedef lua_Destructor

Browse source
This commit is contained in:
Petri Häkkinen 2023-04-11 08:46:50 +03:00
parent c6e4f49e32
commit 25384218ca
3 changed files with 8 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
VM/include/lua.h
View file

@ -313,8 +313,11 @@ LUA_API uintptr_t lua_encodepointer(lua_State* L, uintptr_t p);
LUA_API double lua_clock();
LUA_API void lua_setuserdatatag(lua_State* L, int idx, int tag);
LUA_API void lua_setuserdatadtor(lua_State* L, int tag, void (*dtor)(lua_State*, void*));
LUA_API void (*lua_getuserdatadtor(lua_State* L, int tag))(lua_State*, void*);
typedef void (*lua_Destructor)(lua_State* L, void* userdata);
LUA_API void lua_setuserdatadtor(lua_State* L, int tag, lua_Destructor dtor);
LUA_API lua_Destructor lua_getuserdatadtor(lua_State* L, int tag);
LUA_API void lua_clonefunction(lua_State* L, int idx);

4
VM/src/lapi.cpp
View file

@ -1378,13 +1378,13 @@ void lua_setuserdatatag(lua_State* L, int idx, int tag)
uvalue(o)->tag = uint8_t(tag);
}
void lua_setuserdatadtor(lua_State* L, int tag, void (*dtor)(lua_State*, void*))
void lua_setuserdatadtor(lua_State* L, int tag, lua_Destructor dtor)
{
api_check(L, unsigned(tag) < LUA_UTAG_LIMIT);
L->global->udatagc[tag] = dtor;
}
void (*lua_getuserdatadtor(lua_State* L, int tag))(lua_State*, void*)
lua_Destructor lua_getuserdatadtor(lua_State* L, int tag)
{
api_check(L, unsigned(tag) < LUA_UTAG_LIMIT);
return L->global->udatagc[tag];

3
VM/src/ludata.cpp
View file

@ -24,8 +24,7 @@ void luaU_freeudata(lua_State* L, Udata* u, lua_Page* page)
{
if (u->tag < LUA_UTAG_LIMIT)
{
void (*dtor)(lua_State*, void*) = nullptr;
dtor = L->global->udatagc[u->tag];
lua_Destructor dtor = L->global->udatagc[u->tag];
// TODO: access to L here is highly unsafe since this is called during internal GC traversal
// certain operations such as lua_getthreaddata are okay, but by and large this risks crashes on improper use
if (dtor)