QtScript Javascript对象失去属性

时间:2012-05-16 18:04:34

标签: javascript qt qtscript

我创建了一个QScriptEngine并将QObject设置为具有一些信号/槽的全局对象。然后我加载一些脚本文件并将其传递给引擎(使用evaluate)。该脚本创建一个对象,并将全局对象的一些信号连接到其函数。

遗憾的是,脚本对象的属性(this.password)在从singal调用它的函数时被清除(它在评估期间设置了它,我检查了它)。

这是脚本:

   function Chanserv(password) {
    this.password = password;

//    print("#### Constructor local: " + password + " / global: " + Bot.Password);
}

Chanserv.prototype.test = function() {
//    print("This is a test function / " + Bot.Password + " / " + this.password);
}

Chanserv.prototype.auth = function() {
    print("#### entered auth function! " + this.password);
//    if (this.password && this.password.length > 0) {
    if (Bot.Password && Bot.Password.length > 0) {
        Bot.sendMessage("nickserv", "identify " + Bot.Password);
//        print("Trying to authenticate with " + this.password);
    }
    else {
        print("Bot.Password undefined.");
//        print("this.password = " + this.password 
//              + ", this.password.length = " + (this.password.length > 0));
    }
}

var chanservObject = new Chanserv(Bot.Password);  // this.password gets set

chanservObject.test();
try {
    Bot.joinedChannel.connect(chanservObject.auth); // this.password is empty when called...
    Bot.joinedChannel.connect(chanservObject.test);
//    Bot.connected.connect(chanserv.auth);
}
catch (e) {
    print(e);
}

为什么会出现这种情况?

问候本

1 个答案:

答案 0 :(得分:0)

Javascript对象通过引用传递。您在致电Bot.Password之前修改了chanservObject.auth吗?