abstract-syntax-tree - 如何遍历由 esprima 生成的 AST？

Question

这是我要遍历的代码：

var answer = 6 * 7;

如果我用 Esprima 解析它，结果如下所示。我想将那个AST遍历到格式节点，孩子是这样的：

{
  "node": "Program",
  "children": [
    {
      "node": "VariableDeclaration",
      "children": [
        {
          "node": "VariableDeclarator",
          "children": [
            {
              "node": "Identifier",
              "children": []
            },
            {
              "node": "BinaryExpression",
              "children": [
                {
                  "node": "Literal",
                  "children": []
                },
                {
                  "node": "Literal",
                  "children": []
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}

标签： abstract-syntax-tree