Swift错误：源文件中的编辑器占位符 [英] Swift Error: Editor placeholder in source file

问题描述

您好，我正在实现图形数据结构。当我尝试构建应用程序时，出现错误源文件中的编辑器占位符

Hello I am implementing a graph data structure. When I try to build the application the I get the error "Editor placeholder in source file"

完整图形实现是从WayneBishop的GitHub此处 https://github.com/waynewbishop/SwiftStructures

The full graph implementation was pulled from WayneBishop's GitHub from here https://github.com/waynewbishop/SwiftStructures

class Path {

var total: Int!
var destination: Node
var previous: Path!

init(){
    //Error happens on next line
    destination = Node(key: String?, neighbors: [Edge!], visited: Bool, lat: Double, long: Double)
     }
}

我更改了 Node 围绕以下类：

public class Node{

var key: String?
var neighbors: [Edge!]
var visited: Bool = false
var lat: Double
var long: Double

init(key: String?, neighbors: [Edge!], visited: Bool, lat: Double, long: Double) {
    self.neighbors = [Edge!]()
     }

}

此错误在我到目前为止构建的代码中发生了5次。

This Error happens 5 times throughout the code that I have built so far. Also this question has been asked, but not answered.

我认为该错误可能是由于我对 init（） Node 类中的c $ c>。在进行更改之前，它只是 init（）。如果是这样，如何将对象添加到类中？如果我的编程术语不正确，请原谅我，因为我是OOP的新手。

I think the error may be due to my changes to the init() in the Node class. Prior to my changes it was just init(). If it is, how can I add objects to the class? Pardon me if I am not correct in my programming terminology, as I am relatively new to OOP.

推荐答案

您有这个

destination = Node(key: String?, neighbors: [Edge!], visited: Bool, lat: Double, long: Double)

上面是占位符文本，您需要插入一些值

which was place holder text above you need to insert some values

class Edge{

}

public class Node{

  var key: String?
  var neighbors: [Edge]
  var visited: Bool = false
  var lat: Double
  var long: Double

  init(key: String?, neighbors: [Edge], visited: Bool, lat: Double, long: Double) {
    self.neighbors = [Edge]()
    self.key = key
    self.visited = visited
    self.lat = lat
    self.long = long
  }

}

class Path {

  var total: Int!
  var destination: Node
  var previous: Path!

  init(){
    destination = Node(key: "", neighbors: [], visited: true, lat: 12.2, long: 22.2)
  }
}

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