Function lua_getupvalue

Source/Misc/lua/src/lua.c:2906–2917

LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n) {
const char *name;
TValue *val;
lua_lock(L);
name = aux_upvalue(index2adr(L, funcindex), n, &val);
if (name) {
setobj2s(L, L->top, val);
api_incr_top(L);
}
lua_unlock(L);
return name;
}


LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n) {