1 files changed, 42 insertions, 0 deletions
diff --git a/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/object/compare.js b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/object/compare.js
new file mode 100644
index 0000000000..2ab11f1a39
--- /dev/null
+++ b/tools/eslint/node_modules/escope/node_modules/es6-weak-map/node_modules/es5-ext/object/compare.js
@@ -0,0 +1,42 @@
+'use strict';
+
+var strCompare = require('../string/#/case-insensitive-compare')
+  , isObject   = require('./is-object')
+
+  , resolve, typeMap;
+
+typeMap = {
+	undefined: 0,
+	object: 1,
+	boolean: 2,
+	string: 3,
+	number: 4
+};
+
+resolve = function (a) {
+	if (isObject(a)) {
+		if (typeof a.valueOf !== 'function') return NaN;
+		a = a.valueOf();
+		if (isObject(a)) {
+			if (typeof a.toString !== 'function') return NaN;
+			a = a.toString();
+			if (typeof a !== 'string') return NaN;
+		}
+	}
+	return a;
+};
+
+module.exports = function (a, b) {
+	if (a === b) return 0; // Same
+
+	a = resolve(a);
+	b = resolve(b);
+	if (a == b) return typeMap[typeof a] - typeMap[typeof b]; //jslint: ignore
+	if (a == null) return -1;
+	if (b == null) return 1;
+	if ((typeof a === 'string') || (typeof b === 'string')) {
+		return strCompare.call(a, b);
+	}
+	if ((a !== a) && (b !== b)) return 0; //jslint: ignore
+	return Number(a) - Number(b);
+};