1 files changed, 11 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/object/set-prototype-of/is-implemented.js b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/object/set-prototype-of/is-implemented.js
new file mode 100644
index 0000000000..98d0c8436a
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/object/set-prototype-of/is-implemented.js
@@ -0,0 +1,11 @@
+'use strict';
+
+var create = Object.create, getPrototypeOf = Object.getPrototypeOf
+  , x = {};
+
+module.exports = function (/*customCreate*/) {
+	var setPrototypeOf = Object.setPrototypeOf
+	  , customCreate = arguments[0] || create;
+	if (typeof setPrototypeOf !== 'function') return false;
+	return getPrototypeOf(setPrototypeOf(customCreate(null), x)) === x;
+};