node/tools/eslint/lib/rules/no-new-symbol.js
silverwind d9b8758f47 tools: update ESLint to 2.7.0
PR-URL: https://github.com/nodejs/node/pull/6132
Reviewed-By: Brian White <mscdex@mscdex.net>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: thefourtheye <thechargingvolcano@gmail.com>
2016-04-20 16:24:21 -07:00

35 lines
1.1 KiB
JavaScript

/**
* @fileoverview Rule to disallow use of the new operator with the `Symbol` object
* @author Alberto Rodríguez
* @copyright 2016 Alberto Rodríguez. All rights reserved.
* See LICENSE file in root directory for full license.
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = function(context) {
return {
"Program:exit": function() {
var globalScope = context.getScope();
var variable = globalScope.set.get("Symbol");
if (variable && variable.defs.length === 0) {
variable.references.forEach(function(ref) {
var node = ref.identifier;
if (node.parent && node.parent.type === "NewExpression") {
context.report(node, "`Symbol` cannot be called as a constructor.");
}
});
}
}
};
};
module.exports.schema = [];