如何在Swift中将类树转换为结构树

我有以下两种类型

class Node {
    var title: String
    var children: [Node]?
}

struct Section {
    let title: String
    let subsections: [Section]
}

我有一个具有多个根的节点树。也就是说，一个

[节点]

数组。 我想将此树转换为另一个

[Section]

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如何执行此操作？

如果存在

[Node]

数组，则可以按如下方式转换为结构数组：

func getTreeOfSections(nodes: [Node]) -> [Section] {
    
    var sections = [Section]()
    for node in nodes {
        let section = getSection(from: node)
        sections.append(section)
    }
    return sections
}

func getSection(from node: Node) -> Section {
    let title = node.title
    var subsections = [Section]()
    for child in node.children {
        let subsection = getSection(from: child)
        subsections.append(subsection)
    }
    return Section(title: title, subsections: subsections)
}

---

您需要遍历树并转换