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node_modules/symbol-observable/lib/index.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _ponyfill = require('./ponyfill.js');
+
+var _ponyfill2 = _interopRequireDefault(_ponyfill);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
+
+var root; /* global window */
+
+
+if (typeof self !== 'undefined') {
+  root = self;
+} else if (typeof window !== 'undefined') {
+  root = window;
+} else if (typeof global !== 'undefined') {
+  root = global;
+} else if (typeof module !== 'undefined') {
+  root = module;
+} else {
+  root = Function('return this')();
+}
+
+var result = (0, _ponyfill2['default'])(root);
+exports['default'] = result;

node_modules/symbol-observable/lib/ponyfill.js

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+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+	value: true
+});
+exports['default'] = symbolObservablePonyfill;
+function symbolObservablePonyfill(root) {
+	var result;
+	var _Symbol = root.Symbol;
+
+	if (typeof _Symbol === 'function') {
+		if (_Symbol.observable) {
+			result = _Symbol.observable;
+		} else {
+
+			if (typeof _Symbol['for'] === 'function') {
+				// This just needs to be something that won't trample other user's Symbol.for use
+				// It also will guide people to the source of their issues, if this is problematic.
+				// META: It's a resource locator!
+				result = _Symbol['for']('https://github.com/benlesh/symbol-observable');
+			} else {
+				// Symbol.for didn't exist! The best we can do at this point is a totally 
+				// unique symbol. Note that the string argument here is a descriptor, not
+				// an identifier. This symbol is unique.
+				result = _Symbol('https://github.com/benlesh/symbol-observable');
+			}
+			try {
+				_Symbol.observable = result;
+			} catch (err) {
+				// Do nothing. In some environments, users have frozen `Symbol` for security reasons,
+				// if it is frozen assigning to it will throw. In this case, we don't care, because
+				// they will need to use the returned value from the ponyfill.
+			}
+		}
+	} else {
+		result = '@@observable';
+	}
+
+	return result;
+};