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From Lua 5.2: Add luaL_setmetatable(). 

Contributed by François Perrad.
master
Mike Pall 2017-04-07 12:38:05 +02:00
parent cde968f91f
commit 2b8de8cfc6
3 changed files with 8 additions and 2 deletions
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1
src/lauxlib.h
View File

@ -89,6 +89,7 @@ LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname, LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname,
int sizehint); int sizehint);
LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname); LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname);
LUALIB_API void (luaL_setmetatable) (lua_State *L, const char *tname);
/* /*

3
src/lib_package.c
View File

@ -193,8 +193,7 @@ static void **ll_register(lua_State *L, const char *path)
lua_pop(L, 1); lua_pop(L, 1);
plib = (void **)lua_newuserdata(L, sizeof(void *)); plib = (void **)lua_newuserdata(L, sizeof(void *));
*plib = NULL; *plib = NULL;
luaL_getmetatable(L, "_LOADLIB"); luaL_setmetatable(L, "_LOADLIB");
lua_setmetatable(L, -2);
lua_pushfstring(L, "LOADLIB: %s", path); lua_pushfstring(L, "LOADLIB: %s", path);
lua_pushvalue(L, -2); lua_pushvalue(L, -2);
lua_settable(L, LUA_REGISTRYINDEX); lua_settable(L, LUA_REGISTRYINDEX);

6
src/lj_api.c
View File

@ -1000,6 +1000,12 @@ LUA_API int lua_setmetatable(lua_State *L, int idx)
return 1; return 1;
} }
LUALIB_API void luaL_setmetatable(lua_State *L, const char *tname)
{
lua_getfield(L, LUA_REGISTRYINDEX, tname);
lua_setmetatable(L, -2);
}
LUA_API int lua_setfenv(lua_State *L, int idx) LUA_API int lua_setfenv(lua_State *L, int idx)
{ {
cTValue *o = index2adr(L, idx); cTValue *o = index2adr(L, idx);