Function getArrayInTable

src/vm/luavm/lmylib.cpp:316–346

template <typename ArrayType>
static bool getArrayInTable(lua_State *L, const char *pKey, uint16_t usLen, ArrayType &arrayOut) {
    // 在table里，取指定pKey对应的数组
    if ((usLen <= 0) || (usLen > LUA_C_BUFFER_SIZE)) {
        LogPrint(BCLog::LUAVM, "usLen error\n");
        return false;
    }
    uint8_t value = 0;
    arrayOut.clear();
    //默认栈顶是table，将key入栈
    lua_pushstring(L, pKey);
    lua_gettable(L, -2);
    if (!lua_istable(L, -1)) {
        lua_pop(L, 1);
        LogPrint(BCLog::LUAVM, "getTableInTable is not table\n");
        return false;
    }
    for (int32_t i = 0; i < usLen; ++i) {
        lua_pushnumber(L, i + 1);  //将索引入栈
        lua_gettable(L, -2);
        if (!lua_isnumber(L, -1)) {
            LogPrint(BCLog::LUAVM, "getTableInTable is not number\n");
            return false;
        }
        value = 0;
        value = lua_tonumber(L, -1);
        arrayOut.insert(arrayOut.end(), value);
        lua_pop(L, 1);
    }
    lua_pop(L, 1);  //删掉产生的查找结果
    return true;
}

static bool getStringLogPrint(lua_State *L, char *pKey, uint16_t usLen, vector<uint8_t> &vOut) {
    //从栈里取 table的值是一串字符串