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55 lines
1.6 KiB
55 lines
1.6 KiB
/**
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* @fileoverview Patch for estraverse
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* @author Toru Nagashima
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* @copyright 2015 Toru Nagashima. All rights reserved.
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* See LICENSE file in root directory for full license.
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Requirements
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//------------------------------------------------------------------------------
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var estraverse = require("estraverse"),
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jsxKeys = require("estraverse-fb/keys");
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//------------------------------------------------------------------------------
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// Helers
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//------------------------------------------------------------------------------
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var experimentalKeys = {
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ExperimentalRestProperty: ["argument"],
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ExperimentalSpreadProperty: ["argument"]
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};
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/**
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* Adds a given keys to Syntax and VisitorKeys of estraverse.
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*
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* @param {object} keys - Key definitions to add.
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* This is an object as map.
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* Keys are the node type.
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* Values are an array of property names to visit.
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* @returns {void}
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*/
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function installKeys(keys) {
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for (var key in keys) {
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/* istanbul ignore else */
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if (keys.hasOwnProperty(key)) {
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estraverse.Syntax[key] = key;
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if (keys[key]) {
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estraverse.VisitorKeys[key] = keys[key];
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}
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}
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}
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}
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// Add JSX node types.
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installKeys(jsxKeys);
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// Add Experimental node types.
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installKeys(experimentalKeys);
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//------------------------------------------------------------------------------
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// Public Interface
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//------------------------------------------------------------------------------
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module.exports = estraverse;
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