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node_modules/babel-traverse/lib/path/comments.js 1.03 KB
aaac7fed   liuqimichale   add
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  "use strict";
  
  exports.__esModule = true;
  exports.shareCommentsWithSiblings = shareCommentsWithSiblings;
  exports.addComment = addComment;
  exports.addComments = addComments;
  function shareCommentsWithSiblings() {
    if (typeof this.key === "string") return;
  
    var node = this.node;
    if (!node) return;
  
    var trailing = node.trailingComments;
    var leading = node.leadingComments;
    if (!trailing && !leading) return;
  
    var prev = this.getSibling(this.key - 1);
    var next = this.getSibling(this.key + 1);
  
    if (!prev.node) prev = next;
    if (!next.node) next = prev;
  
    prev.addComments("trailing", leading);
    next.addComments("leading", trailing);
  }
  
  function addComment(type, content, line) {
    this.addComments(type, [{
      type: line ? "CommentLine" : "CommentBlock",
      value: content
    }]);
  }
  
  function addComments(type, comments) {
    if (!comments) return;
  
    var node = this.node;
    if (!node) return;
  
    var key = type + "Comments";
  
    if (node[key]) {
      node[key] = node[key].concat(comments);
    } else {
      node[key] = comments;
    }
  }