···

       
16
       
16
       
 
       
  }

     

       
17
       
17
       
 
       


     

       
18
       
18
       
 
       
  function traverse(node, key, parent) {

     

       
19
       
19
       
+
       
    let hasEdited = false;

     

       
19
       
20
       
 
       
    let result;

     

       
20
       
21
       
 
       
    

     

       
21
       
22
       
 
       
    result = callback(node, key, parent, false);

     

       
22
       
23
       
 
       
    if (result === false) {

     

       
23
       
24
       
 
       
      return;

     

       
24
       
25
       
 
       
    } else if (result && typeof result.kind === 'string') {

     

       
26
       
26
       
+
       
      hasEdited = true;

     

       
25
       
27
       
 
       
      node = result;

     

       
26
       
28
       
 
       
    }

     

       
27
       
29
       
 
       


     

       
28
       
30
       
 
       
    ancestors.push(node);

     

       
29
       
29
       
-
       
    const copy = {};

     

       
31
       
31
       
+
       
    const copy = { ...node };

     

       
30
       
32
       
 
       


     

       
31
       
31
       
-
       
    let hasEdited = false;

     

       
32
       
33
       
 
       
    for (const nodeKey in node) {

     

       
33
       
33
       
-
       
      const value = node[nodeKey];

     

       
34
       
34
       
-
       


     

       
35
       
35
       
-
       
      let newValue;

     

       
34
       
34
       
+
       
      let value = node[nodeKey];

     

       
36
       
35
       
 
       
      path.push(nodeKey);

     

       
37
       
36
       
 
       
      if (Array.isArray(value)) {

     

       
38
       
38
       
-
       
        newValue = value.slice();

     

       
37
       
37
       
+
       
        value = value.slice();

     

       
39
       
38
       
 
       
        for (let index = 0; index < value.length; index++) {

     

       
40
       
39
       
 
       
          if (value[index] != null && typeof value[index].kind === 'string') {

     

       
41
       
40
       
 
       
            path.push(index);

     

       
42
       
41
       
 
       
            result = traverse(value[index], index, node);

     

       
43
       
42
       
 
       
            path.pop();

     

       
44
       
43
       
 
       
            if (result !== undefined) {

     

       
45
       
45
       
-
       
              newValue[index] = result;

     

       
44
       
44
       
+
       
              value[index] = result;

     

       
46
       
45
       
 
       
              hasEdited = true;

     

       
47
       
46
       
 
       
            }

     

       
48
       
47
       
 
       
          }

     
···

       
51
       
50
       
 
       
      } else if (value != null && typeof value.kind === 'string') {

     

       
52
       
51
       
 
       
        result = traverse(value, nodeKey, node);

     

       
53
       
52
       
 
       
        if (result !== undefined) {

     

       
54
       
54
       
-
       
          newValue = result;

     

       
53
       
53
       
+
       
          value = result;

     

       
55
       
54
       
 
       
          hasEdited = true;

     

       
56
       
55
       
 
       
        }

     

       
57
       
56
       
 
       
      }

     

       
58
       
57
       
 
       


     

       
59
       
58
       
 
       
      path.pop();

     

       
60
       
60
       
-
       
      copy[nodeKey] = hasEdited ? newValue : value;

     

       
59
       
59
       
+
       
      if (hasEdited) copy[nodeKey] = value;

     

       
61
       
60
       
 
       
    }

     

       
62
       
61
       
 
       


     

       
63
       
62
       
 
       
    ancestors.pop();

     

       
64
       
63
       
 
       


     

       
65
       
64
       
 
       
    if (hasEdited) node = copy;

     

       
66
       
66
       
-
       
    return callback(node, key, parent, true);

     

       
65
       
65
       
+
       
    result = callback(node, key, parent, true);

     

       
66
       
66
       
+
       
    return hasEdited && result === undefined ? node : result;

     

       
67
       
67
       
 
       
  }

     

       
68
       
68
       
 
       


     

       
69
       
69
       
 
       
  try {