migrate from perforce

node_modules/is-descriptor/index.js

@@ -0,0 +1,16 @@
+'use strict';
+
+var isAccessor = require('is-accessor-descriptor');
+var isData = require('is-data-descriptor');
+
+module.exports = function isDescriptor(obj, key) {
+	if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
+		return false;
+	}
+
+	if ('get' in obj || 'set' in obj) {
+		return isAccessor(obj, key);
+	}
+
+	return isData(obj, key);
+};