0

我正在使用Duktape在我的 Android 应用程序中运行 JS 代码。我正在尝试在 JS 中实现一个日志函数，它接收多个可变参数。运行代码时出现异常：

方法抛出“com.squareup.duktape.DuktapeException”异常。SyntaxError：预期标识符（第 3 行）

Duktape 是否支持Spread 语法？一般是否支持 Kotlin 选项？

//JS code
"""
    var Console = {
        log : function(...args) {
            __consoleImpl.log(args);
                    }
            };
"""

//Kotlin interface
interface Console {

    fun log(arg1:String? = null, arg2:String? = null, arg3:String? = null, arg4:String? = null,
            arg5:String? = null, arg6:String? = null, arg7:String? = null, arg8:String? = null,
            arg9:String? = null, arg10:String? = null)
}


//Interface impl
class ConsoleImpl() : Console {

    override fun log(arg1: String?, arg2: String?, arg3: String?, arg4: String?, arg5: String?, arg6: String?, arg7: String?, arg8: String?, arg9: String?, arg10: String?) {
    val values = listOfNotNull(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10).map {it.toString()}.filter { it != "undefined" }
    Log.d("ConsoleImpl", values.joinToString())
    }
}

//in setup
duktape.set("__consoleImpl", Console::class.java, ConsoleImpl())
duktape.evaluate("Console.log("message")) //exception thrown here
4

1 回答 1

1

duktape 仅完全支持 ES5，以及 ES6 和 ES7 的一些功能（请参阅帖子 ES5 功能）。扩展语法是 ES6 的一个特性。

于 2020-04-08T07:00:40.983 回答