From 830f8392d1492cff3fba4b75ab35d1670165ac25 Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Tue, 17 Dec 2019 13:59:24 -0800
Subject: [PATCH] [Refactor] avoid top-level return, because babel and webpack
 are broken

Closes https://github.com/inspect-js/node-deep-equal/issues/79.
Closes https://github.com/inspect-js/node-deep-equal/issues/78.
Closes https://github.com/es-shims/Promise.allSettled/issues/7.
Closes https://github.com/airbnb/js-shims/issues/12.

Relates to:
 - https://github.com/inspect-js/is-map/pull/5
 - https://github.com/inspect-js/is-map/pull/4
 - https://github.com/inspect-js/is-map/pull/3
 - https://github.com/inspect-js/is-set/pull/5
 - https://github.com/inspect-js/is-set/pull/4
 - https://github.com/storybookjs/storybook/issues/9154.
---
 index.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/index.js b/index.js
index b68555c..f7359a2 100644
--- a/index.js
+++ b/index.js
@@ -3,27 +3,27 @@
 var $WeakMap = typeof WeakMap === 'function' && WeakMap.prototype ? WeakMap : null;
 var $WeakSet = typeof WeakSet === 'function' && WeakSet.prototype ? WeakSet : null;
 
+var exported;
+
 if (!$WeakMap) {
 	// eslint-disable-next-line no-unused-vars
-	module.exports = function isWeakMap(x) {
+	exported = function isWeakMap(x) {
 		// `WeakMap` is not present in this environment.
 		return false;
 	};
-	return;
 }
 
 var $mapHas = $WeakMap ? $WeakMap.prototype.has : null;
 var $setHas = $WeakSet ? $WeakSet.prototype.has : null;
-if (!$mapHas) {
+if (!exported && !$mapHas) {
 	// eslint-disable-next-line no-unused-vars
-	module.exports = function isWeakMap(x) {
+	exported = function isWeakMap(x) {
 		// `WeakMap` does not have a `has` method
 		return false;
 	};
-	return;
 }
 
-module.exports = function isWeakMap(x) {
+module.exports = exported || function isWeakMap(x) {
 	if (!x || typeof x !== 'object') {
 		return false;
 	}