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tree-visitor

tree-visitor

tree-visitor

tree-visitor

1

It is not hard to integrate a pattern-matching library with the tree visitor to get to a point where visitors can leverage tree patterns .

您可以轻松集成模式匹配库与树访问者，使访问者能够利用树模型。

2

The primary difference in tree-visitor is that the visit-node function returns several items : a new-node, a new-state, and a stop flag .

tree-visitor 中的主要差别在于，visit-node 函数返回多个项目：一个 new-node 、一个 new-state 和一个 stop 标记。

3

At each node , the tree-visitor calls visit-node , our second function .

在每个节点处，tree-visitor 都会调用我们的第二个函数 visit-node 。

4

It is easy to abstract these functions in our current tree -visitor function and allow for pre-built and custom iteration strategies .

在我们当前的树访问者函数中可以轻松抽象这些函数，并支持预构建和自定义的迭代策略。

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