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我对 Rust 很陌生,所以请说出我不明白的内容。我正在尝试匹配对结构的引用。它有一个op类型为 的字段Option<Operator>,其中Operator是一个已定义的枚举。这是代码:

fn formatNodeName(node: &ComputeNode) -> String{
    match node.op{
        Some(ref operator) =>   format!("{}[label=\"{}[{}]\\n{}\"];",node.id, node.name, node.id, operator),
        _ =>    format!("{}[label=\"{}[{}]\"];",node.id, node.name, node.id)
    }
}

但是我收到以下错误,我有点理解并且有点不理解:

   src/codegen/graph_viz.rs:43:8: 43:12 error: cannot move out of borrowed content
src/codegen/graph_viz.rs:43     match node.op{
                                      ^~~~
src/codegen/graph_viz.rs:44:8: 44:16 note: attempting to move value to here
src/codegen/graph_viz.rs:44         Some(operator) =>   format!("{}[label=\"{}[{}]\\n{}\"];",node.id, node.name, node.id, operator),
                                         ^~~~~~~~
src/codegen/graph_viz.rs:44:8: 44:16 help: to prevent the move, use `ref operator` or `ref mut operator` to capture value by reference
error: aborting due to previous error

这样的事情应该如何“正确”实施以匹配?

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