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1 files changed, 15 insertions, 0 deletions

diff --git a/src/node_modules/es-abstract/2015/ToPropertyKey.js b/src/node_modules/es-abstract/2015/ToPropertyKey.js
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index 0000000..38f40dd
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+++ b/src/node_modules/es-abstract/2015/ToPropertyKey.js
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+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $String = GetIntrinsic('%String%');
+
+var ToPrimitive = require('./ToPrimitive');
+var ToString = require('./ToString');
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-topropertykey
+
+module.exports = function ToPropertyKey(argument) {
+	var key = ToPrimitive(argument, $String);
+	return typeof key === 'symbol' ? key : ToString(key);
+};