Function Hash_gc

engine/script/src/script_hash.cpp:397–423

    };

    static int Hash_gc(lua_State* L)
    {
        dmhash_t hash = *(dmhash_t*)lua_touserdata(L, 1);
        HContext context = dmScript::GetScriptContext(L);
        if (context)
        {
            int* refp = context->m_HashInstances.Get(hash);
            if (refp && context->m_ContextWeakTableRef != LUA_NOREF)
            {
                lua_rawgeti(L, LUA_REGISTRYINDEX, context->m_ContextWeakTableRef);
                // [-1] weak_table
                PushHashWeakTableKey(L, hash);
                // [-2] weak_table
                // [-1] key
                lua_rawget(L, -2);
                // [-2] weak_table
                // [-1] value or nil
                if (lua_isnil(L, -1))
                {
                    context->m_HashInstances.Erase(hash);
                    dmHashReverseErase64(hash);
                }
                lua_pop(L, 2);
            }
        }
        return 0;
    }

    void InitializeHash(lua_State* L)
    {