IntelliJ中Scala工作表的编译问题 [英] Compilation issue of a Scala worksheet in IntelliJ

问题描述

我的工作表包含

object test {

  val tableTest = new Array[String](1)
  tableTest.length

}

返回

tableTest: Array[String] = [Ljava.lang.String;@628c5fdf
res0: Int = 1

似乎没问题。

但是，当我输入此工作表时：

However, when I enter this worksheet:

object test {

  val tableTest = new Array[String](1)
  tableTest(0) = "zero"

}

IntelliJ无法编译并返回无法从以下位置读取事件：rO0ABXNyADdvcmcuamV0YnJhaW5zLmpwcy5pbmNyZW1lbnRhbC ... 错误。

IntelliJ cannot compile and returns me a Unable to read an event from: rO0ABXNyADdvcmcuamV0YnJhaW5zLmpwcy5pbmNyZW1lbnRhbC... error.

我做错了什么？

推荐答案

我对最新的Idea和Scala插件有同样的问题。

似乎工作表在执行任何求值为Unit的行时出现问题。分配是单位，这就是你的 tableTest（0）=零失败的原因。

I'm having the same issue with latest Idea and Scala plugin.
It seems that the worksheet has a problem executing any line which evaluates to Unit. Assigning is Unit, that's why your tableTest(0) = "zero" fails.

我暂时通过以下解决方法解决了这个问题：

I've temporarily solved it with the following workaround:

此行将失败，错误错误：无法从以下位置读取事件：...

println("Will fail")

您可以通过定义此辅助方法并将其用于任何单位表达式来修复它： / p>

You can fix it by defining this helper method and using it for any Unit expression:

def unit(f: => Unit): String = {f; ""}
unit(println("Will work"))

你只需要忽略它在输出面板中使用生成的行res0：String =
您也可以将此方法放在某个对象中并导入所需的任何WS。

You just have to ignore the line it generates in the output panel with res0: String = You also can put this method in some object and import in any WS you need.

加斯顿。

@ktonga

Gaston.
@ktonga

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