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parent.js
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parent.js
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/* *****************************************************************************
qooxdoo - the new era of web development
http://qooxdoo.org
Copyright:
2013-2014 1&1 Internet AG, Germany, http://www.1und1.de
License:
LGPL: http://www.gnu.org/licenses/lgpl.html
EPL: http://www.eclipse.org/org/documents/epl-v10.php
See the LICENSE file in the project's top-level directory for details.
Authors:
* Thomas Herchenroeder (thron7)
* Richard Sternagel (rsternagel)
***************************************************************************** */
'use strict';
/**
* @module annotator.parent
*
* @desc
* Annotator for esprima AST.
*
* <dl>
* <dt>What?</dt>
* <dd>parent node</dd>
* <dt>Where?</dt>
* <dd>every node</dd>
* </dl>
*/
// third party
var estraverse = require('estraverse');
/**
* Augmentation key for tree.
*/
var annotateKey = "parent";
module.exports = {
/**
* Annotate tree with parent information.
*
* @param {Object} tree - esprima AST
* @see {@link http://esprima.org/doc/#ast|esprima AST}
*/
annotate: function(tree) {
var controller = new estraverse.Controller();
controller.traverse(tree, {
enter : function (node, parent) {
node[annotateKey] = parent;
}
});
}
};