text: // This file contains methods responsible for dealing with comments.
  
  /**
   * Share comments amongst siblings.
   */
  
  export function shareCommentsWithSiblings() {
    let node = this.node;
    if (!node) return;
  
    let trailing = node.trailingComments;
    let leading  = node.leadingComments;
    if (!trailing && !leading) return;
  
    let prev = this.getSibling(this.key - 1);
    let next = this.getSibling(this.key + 1);
  
    if (!prev.node) prev = next;
    if (!next.node) next = prev;
  
    prev.addComments("trailing", leading);
    next.addComments("leading", trailing);
  }
  
  export function addComment(type, content, line?) {
    this.addComments(type, [{
      type: line ? "CommentLine" : "CommentBlock",
      value: content
    }]);
  }
  
  /**
   * Give node `comments` of the specified `type`.
   */
  
  export function addComments(type: string, comments: Array) {
    if (!comments) return;
  
    let node = this.node;
    if (!node) return;
  
    let key = `${type}Comments`;
  
    if (node[key]) {
      node[key] = node[key].concat(comments);
    } else {
      node[key] = comments;
    }
  }
  