Replace Function constructor with globalThis and use polyfill if missing

rsmbl · Jul 29, 2020 · 2b292e6 · 2b292e6
1 parent 66b01ea
commit 2b292e6
Showing 1 changed file with 37 additions and 3 deletions.
diff --git a/resemble.js b/resemble.js
@@ -3,9 +3,43 @@ James Cryer / Huddle
 URL: https://github.com/Huddle/Resemble.js
 */
 
-var isNode = new Function(
-    "return (typeof process !== 'undefined') && process.versions && process.versions.node"
-); //eslint-disable-line
+var naiveFallback = function() {
+	if (typeof self === "object" && self) return self;
+	if (typeof window === "object" && window) return window;
+	throw new Error("Unable to resolve global `this`");
+};
+
+// https://github.com/medikoo/es5-ext/blob/master/global.js
+var getGlobalThis = function() {
+    // Fallback to standard globalThis if available
+	if (typeof globalThis === "object" && globalThis) return globalThis;
+
+	// Thanks @mathiasbynens -> https://mathiasbynens.be/notes/globalthis
+	// In all ES5+ engines global object inherits from Object.prototype
+	// (if you approached one that doesn't please report)
+	try {
+		Object.defineProperty(Object.prototype, "__global__", {
+			get: function () { return this; },
+			configurable: true
+		});
+	} catch (error) {
+		// Unfortunate case of updates to Object.prototype being restricted
+		// via preventExtensions, seal or freeze
+		return naiveFallback();
+	}
+	try {
+		// Safari case (window.__global__ works, but __global__ does not)
+		if (!__global__) return naiveFallback();
+		return __global__;
+	} finally {
+		delete Object.prototype.__global__;
+	}
+}
+
+var isNode = function() {
+    const globalPolyfill = getGlobalThis();
+    return (typeof globalPolyfill.process !== 'undefined') && globalPolyfill.process.versions && globalPolyfill.process.versions.node;
+};//eslint-disable-line
 
 (function(root, factory) {
     "use strict";